School of Electrical and Information Engineering. ELEC High Voltage. University of Sydney. Dr Keith Mitchell. Engineering

Save this PDF as:

Size: px
Start display at page:

Download "School of Electrical and Information Engineering. ELEC High Voltage. University of Sydney. Dr Keith Mitchell. Engineering"

Transcription

1 University of Sydney School of Electrical and Information Engineering Dr Keith Mitchell ELEC High Voltage Engineering

2 ELEC High Voltage Engineering 3. Switchgear

3 Types of Power System Switchgear Only fuses and circuit breakers are designed to interrupt shortcircuit currents Source: ref 2

4 Source CT and VT Connection To load

5 Circuit Breaker and Relay Wiring Schematic (1 of 3 phases) Source: Ref 1

6 Power System Protection Relays Power system protection relays accept signals representing the fault current and voltages (derived from measuring transducers known as current and voltage transformers) and then analyse these signals and send a trip signal to a circuit breaker if an abnormal condition is detected. The main types of relays are (for short-circuits): Over current Distance (impedance) Unit (differential) Other relay types are Thermal, over and undervolts, Buchholz, neg ve sequence, etc

7 Protection Relays and Circuit Breakers Upon detection of a fault, protection relays provide the trip signals for the circuit breakers. These are switching devices designed to be able to carry and interrupt safely the often very high currents, which flow during faults. Modern high capacity circuit breakers are capable of interrupting currents of up to amps at a nominal voltage of 750kV within 40 milliseconds. The purpose of the circuit breakers is To disconnect the faulty element or circuit, leaving the rest of the power system intact To prevent other healthy equipment from being damaged by the fault currents they must carry. To reduce damage at the point of fault, important because the less damage caused by the fault the greater the probability of successful repair.

8 Circuit Breaker Ratings Rated load current the normal load current it can carry indefinitely without thermal damage Rated voltage the rated voltage it can withstand indefinitely without insulation breakdown Breaking current the short circuit current it can safely interrupt without damage Making current the maximum short-circuity it can close onto (assuming an upstream device can interrupt the current) Eg 630A, volts, 21 ka Load current Rated voltage Breaking current

9 Steady-State or Asymmetric Current? Transmission system protection is designed to clear faults very quickly (sub-second), so asymmetric current is relevant Distribution system protection is often much slower and transients have usually decayed away - so steady state may be more applicable.

10 Fully Offset Fault Current

11 Calculation of Fully Offset Fault Current Source: ref 2

12 Short- Circuit Equiv Cct Source: ref 4 The total source and line R and L will determine the DC transient time constant τ = L tot /R tot

13 CB Symmetrical Interrupting Capability For CBs < 120 kv, a proportionally higher breaking capacity may be possible at reduced voltages ( K factor)

14 Circuit Breaker Fault Clearance

15 Circuit Breaker Fault Clearance.. 2

16 Current Choppin g

17 Circuit Breaker Types OIL Oil is vaporised and gas extinguishes arc Old technology maintenance intensive Explosion and fire risk AIR Arc shute designed to lengthen arc and extinguish Used for LV <1100V Air-Blast High pressure air extinguishes arc Used for HV AC and DC SF 6 Low maintenance. Soft switching Gas disposal issue VACUUM Maintenance free. Suitable for MV < 36kV Hard switching voltage transients Can t monitor vacuum condition

18 330 kv Switchgear - TransGrid Liverpool 330/132kV Substation 330kV busbars 330kV CTs 330kV Air-Blast CBs

19 132 kv Switchgear - Energy Aust 132kV Substation 132 kv low oil volume CBs The author in front gives an idea of size at these sorts of voltages.

20 HV, MV and LV CBs Voltage very much dictates size and type of circuit breaker Low Voltage >120 V and < 1.1 kv AC - Encased, Air CBs are the main type Medium Voltage > 1.1 kv and < 52 kv - Vacuum (<36 kv) and SF6 main types. - Many designs are indoor High Voltage > 52 kv - SF6 the main design. SF6 GIS switchgear up to 400 kv now available for indoor applications - Oil, low volume oil, and air-blast older types for high voltage.

21 Typical CB Ratings 120 kv Load A; S/C ka 300 kv Load A; S/C ka 800 kv Load A; S/C 40 ka

22 Oil CBs

23 SF 6 CB - Operation Source: ref 4 Arc quenching process in a puffer type SF6 CB

24 SF 6 Dielectric Properties Source: ref 4 SF 6 is a heavy largely inert gas and has superior dielectric and arc quenching properties compared to air and oil. Most SF 6 switchgear operates at a pressure of about 5-6 bars.

25 Source: Ref 4 Air-Blast CBs

26 Source: Ref 4 LV Air CBs

27 LV Magnetic Arc Extinction Source: Ref 4

28 Vacuum CBs Becoming very popular for voltages up to about 15 kv (eg motor contactors). Basically maintenancefree. Issues with hard arc extinction (current chopping) and

29 Indoor or Outdoor? Originally, most switchgear, right down to 11 kv, was placed outdoors, designed for use with aerial busbars, for both technical and cost reasons, especially at high voltages. The advent of SF 6 gas insulation has enabled the use of switchgear to 400 kv indoors. Inner city substations use indoor gear for aesthetic and space-saving reasons. Indoor subs may cause earthing design problems - why?

30 Source: ref 4 Outdoor CBs

31 Source: ref 4. A 440 kv packaged substation. The CBs are in the front and busbars at the rear. An incoming circuit is on the top right. HV GIS Switchgear

32 Other CB Design Issues Insulation level - set by system BIL Transient voltage withstand - 3 phase CBs do not open all 3 poles precisely at the same instant - over-voltages of ~1.5 times on other phases may occur.

33 CB Maintenance Traditional CB maintenance has been based on duty cycles - so many switching operations, so many fault clearing operations, etc. Normally minor maintenance interwoven with major maintenance. The latter involving complete stripping down of gear, and replacement of contacts. Newer concepts based on condition monitoring.

34 Condition Monitoring Refers to the actual amount of wear and tear a CB has experienced, and using this to determine the timing and nature of next CB maintenance. Uses sensors and microprocessors to log actual operational behaviour. Vibration analysis to monitor wear of CB contacts and operation mechanisms Oil analysis to determine amount of carbonisation caused by arcing, etc.

35 Switchgear Testing Manufacturers tests - R & D testing, type testing Commissioning tests - voltage pressure tests, tripping/closing tests, dielectric tests, etc Routine maintenance tripping tests.

36 Substation Layouts - Full Mesh Source: ref 4. Used on HV transmission substations where deliberate redundancy in current paths ensures maximum reliability.

37 Substation Layouts - Breaker and Half

38 Substation Layouts - Simple Single Bus NB: The X s are CBs and the switches are isolators.

39 HV Switchyard & Earth Grid Source: ref 4. Layout A design for a simple 132 kv sub with one incoming 132 kv feeder and 2 transformer CBs and isolators, and switchroom with the lower voltage side switchgear being indoor. Note the denser earth grid under the switchroom. The earth grid must keep voltage rise due to fault current inflow to acceptable levels.

40 Earth Grid Resistance

41 Earth Ground Rod Resistance Source: ref 4 The earth grid resistance will be specified in the substation design (usually < 0.5 ohm). Actual grid resistance tests are done as part of the commissioning tests of a new substation, by direct current injection.

42 Step and Touch Potentials

43 Allowable Human Body Currents Electrocution is caused by currents flowing through a body and interfering with the operation of key organs eg lungs, heart Body resistance varies with voltage and dryness Up to 900 ma acceptable for very short (<0.05 sec) periods; only 80 ma at 1 second and <50 ma continuous

44 Allowable Touch Potentials Source: ref 4. For example, for a 1-second fault duration, touch potential should be 60 volts, or less.

45 Typical Computer Model of Step & Touch Potentials Source: ref 4.

46 Source: ref 4. Switchyard Spacings

47 IEC Phase Clearances Source: ref 4.

48 Source: ref 4. IEC Safe Working Distances

EE064D: Circuit Breakers & Switchgears: Design, Testing, Commissioning, Maintenance, Repair & Troubleshooting

EE064D: Circuit Breakers & Switchgears: Design, Testing, Commissioning, Maintenance, Repair & Troubleshooting EE064D: Circuit Breakers & Switchgears: Design, Testing, Commissioning, Maintenance, Repair & Troubleshooting EE064-D Rev.002 CMCT COURSE OUTLINE Page 1 of 7 Training Description: This intensive five-day

More information

SWITCHBOARDS (LV and MV)

SWITCHBOARDS (LV and MV) ELEC9713 Industrial and Commercial Power Systems SWITCHBOARDS (LV and MV) 1. Introduction Depending on the size of the building or factory site and whether the supply is high voltage or low voltage, there

More information

The University of New South Wales. School of Electrical Engineering and Telecommunications. Industrial and Commercial Power Systems Topic 2

The University of New South Wales. School of Electrical Engineering and Telecommunications. Industrial and Commercial Power Systems Topic 2 The University of New South Wales School of Electrical Engineering and Telecommunications Industrial and Commercial Power Systems Topic 2 SWITCHBOARDS Overview Also called Switchgear and Controlgear Assembly

More information

Air-insulated switchgear UniGear type ZS1

Air-insulated switchgear UniGear type ZS1 Air-insulated switchgear UniGear type ZS1 ABB Power Technologies / 1-7074 D 12-03-2003 - Air-insulated switchgear UniGear type ZS1 ABB Power Technologies / 2-7075 D 1 2-03-2003 - Rated voltage kv 12 17.5

More information

Pretest Module 29 High Voltage Unit 1

Pretest Module 29 High Voltage Unit 1 Pretest Module 29 High Voltage Unit 1 1. Is a person qualified to work on high-voltage installations when this module is completed? 2. What is the code definition of high-voltage? 3. What is the IEEE definition

More information

INESING srl. MOBILE SUBSTATIONS Energy Solution. Energy Innovation. INESING srl Energy Innovation

INESING srl. MOBILE SUBSTATIONS Energy Solution. Energy Innovation. INESING srl Energy Innovation MOBILE SUBSTATIONS Energy Solution INTERNATIONAL FAIR MOBILE SUBSTATIONS ENERGY SOLUTION Complete design for energy s generations, transmission and distribution Mobile Substations Applications of Inesing

More information

Gas Insulated Metal-clad Switchgear, HMGS!

Gas Insulated Metal-clad Switchgear, HMGS! Medium Voltage HMGS-G10 HYUNDAI Medium Voltage Gas Insulated Metal-clad Switchgear, HMGS! SF6 Gas Insulated Metal-clad Switchgear is an integrated assembly of vacuum circuit breaker, 3-position switch,

More information

Switchgear and Distribution Systems for Engineers and Technicians

Switchgear and Distribution Systems for Engineers and Technicians Switchgear and Distribution Systems for Engineers and Technicians WHAT YOU WILL LEARN: How to identify typical characteristics of an industrial distribution system Become familiar with the main components

More information

MESG 12 / 17.5 / 24 / 36 KV

MESG 12 / 17.5 / 24 / 36 KV MESG 12 / 17.5 / 24 / 36 KV Medium Voltage Air Insulated Metal Enclosed Switchgear up to 36 kv- up to 1250 A - up to 25 ka for 1 sec. with SF6 or vacuum circuit breakers. 750 METAL ENCLOSED 1 1 ) GENERAL

More information

Power systems Protection course

Power systems Protection course Al-Balqa Applied University Power systems Protection course Department of Electrical Energy Engineering Dr.Audih 1 Part 3 Protective Devices Fuses & Circuit Breakers 2 Introduction: Fuse Is advice used

More information

TECHNICAL SPECIFICATION OF 11KV SF6 / VCB METAL ENCLOSED, INDOOR (PANEL TYPE) / OUTDOOR RING MAIN UNIT (RMU). (IEC standard equipment)

TECHNICAL SPECIFICATION OF 11KV SF6 / VCB METAL ENCLOSED, INDOOR (PANEL TYPE) / OUTDOOR RING MAIN UNIT (RMU). (IEC standard equipment) TECHNICAL SPECIFICATION OF 11KV SF6 / VCB METAL ENCLOSED, INDOOR (PANEL TYPE) / OUTDOOR RING MAIN UNIT (RMU). (IEC standard equipment) 1 SCOPE OF SUPPLY This specification covers design, manufacture, shop

More information

MAHALAKSHMI ENGINEERING COLLEGE TIRUCHIRAPALLI

MAHALAKSHMI ENGINEERING COLLEGE TIRUCHIRAPALLI MAHALAKSHMI ENGINEERING COLLEGE TIRUCHIRAPALLI 621213 QUESTION BANK --------------------------------------------------------------------------------------------------------------- Sub. Code : EE2402 Semester

More information

Applications. Distribution transformers up to 2000 kva High-voltage motors up to 3 MW Capacitors up to1200 kvar MV voltage transformers Cable feeders

Applications. Distribution transformers up to 2000 kva High-voltage motors up to 3 MW Capacitors up to1200 kvar MV voltage transformers Cable feeders Applications HV HRC (high-voltage high rupturing capacity) fuses are used for short circuit protection in high-voltage switchgear for the 50 to 60 Hz frequency range Distribution transformers up to 2000

More information

Close-Open (Short-Circuit) Time Results Interpretation

Close-Open (Short-Circuit) Time Results Interpretation Application Note Close-Open (Short-Circuit) Time Results Interpretation Close-Open (C-O, trip-free) cycles simulate closing on a short circuit. In the actual event, the breaker closes first, then the protection

More information

MV Air Insulated Switchgear TAP17. Technical Data TGOOD

MV Air Insulated Switchgear TAP17. Technical Data TGOOD MV Air Insulated Switchgear TAP17 Technical Data TGOOD 2017.1 Operating environmental conditions Place of installation: Indoor or outdoor Ambient temperature: 25 ~ +40 (higher or lower temperature optional)

More information

NEXT STEP B) SAFETY :

NEXT STEP B) SAFETY : SUMMARY : EVOLUTION OF MV/LV SUBSTATIONS COMPACT SUBSTATIONS J. M. Solans, C. Prevé, R. Farrán, R. Muñoz. SCHNEIDER ELECTRIC S.A. - SPAIN INTRODUCTION The recent liberalisation of the electricity supply

More information

Bharat Heavy Electricals Limited (High Pressure Boiler Plant) Tiruchirappalli , TAMIL NADU, INDIA CAPITAL EQUIPMENT / MATERIALS MANAGEMENT

Bharat Heavy Electricals Limited (High Pressure Boiler Plant) Tiruchirappalli , TAMIL NADU, INDIA CAPITAL EQUIPMENT / MATERIALS MANAGEMENT An ISO 9001 Company Bharat Heavy Electricals Limited (High Pressure Boiler Plant) Tiruchirappalli 620014, TAMIL NADU, INDIA CAPITAL EQUIPMENT / MATERIALS MANAGEMENT ENQUIRY Phone: +91 431 257 79 38 Fax

More information

MEDIUM VOLTAGE PRODUCTS. Fault Current Limiters I S. -limiter and FC-Protector The worldʼs fastest switching devices

MEDIUM VOLTAGE PRODUCTS. Fault Current Limiters I S. -limiter and FC-Protector The worldʼs fastest switching devices MEDIUM VOLTAGE PRODUCTS The worldʼs fastest switching devices 2 FAULT CURRENT LIMITERS THE WORLDʼ S FASTETST SWITCHING DEVICES The worldʼs fastest switching devices ABBʼs fault current limiters disconnect

More information

ZF SERIES HV GAS INSULATED SWITCHGEAR (GIS) tgood.com. Energy. Fast.

ZF SERIES HV GAS INSULATED SWITCHGEAR (GIS) tgood.com. Energy. Fast. ZF SERIES HV GAS INSULATED SWITCHGEAR (GIS) tgood.com Energy. Fast. TGOOD produces over 5000 switchgear units annually for projects around the globe PRODUCT OVERVIEW High performance alternative to air

More information

AIR INSULATED EXTENDABLE SWITCHGEAR UP TO 12KV GUIDE

AIR INSULATED EXTENDABLE SWITCHGEAR UP TO 12KV GUIDE AIR INSULATED EXTENDABLE SWITCHGEAR UP TO 12KV GUIDE Certificate Number FM35831 APPLICATION Typical Uses and Classification The MSGair switchgear is used in transformer and switching substations mainly

More information

Title Electrical Technical Maintenance Coding System. Reference Number PMP 01 (RIC Standard: EP SP)

Title Electrical Technical Maintenance Coding System. Reference Number PMP 01 (RIC Standard: EP SP) Discipline Engineering Standard NSW Category General Title Reference Number PMP 01 (RIC Standard: EP 00 00 00 02 SP) Document Control Status Date Prepared Reviewed Endorsed Approved Mar 05 Standards and

More information

Learning Module 6: Medium Voltage Power Circuit Breakers. 101 Basic Series

Learning Module 6: Medium Voltage Power Circuit Breakers. 101 Basic Series Learning Module 6: Medium Voltage Power Circuit Breakers 101 Basic Series What You Will Learn We ll step through each of these topics in detail: Introduction 4 Components 4 Frame 5 Operating Mechanism

More information

Breaking new ground. A circuit breaker with the capacity to switch 15 large power plants

Breaking new ground. A circuit breaker with the capacity to switch 15 large power plants Breaking new ground A circuit breaker with the capacity to switch 15 large power plants Helmut Heiermeier, Reto Karrer The power networks that span the landscape and bring electrical energy to cities and

More information

THP145 HYBRID GAS INSULATED SWITCHGEAR (HGIS) Energy, Fast! tgood.com

THP145 HYBRID GAS INSULATED SWITCHGEAR (HGIS) Energy, Fast! tgood.com THP145 HYBRID GAS INSULATED SWITCHGEAR (HGIS) Energy, Fast! tgood.com TGOOD produces over 5000 switchgear units annually for projects around the globe SOLUTION OVERVIEW For use in affordable air insulated

More information

37-SDMS-04 SPECIFICATIONS FOR INTERFACE LOW VOLTAGE MAIN CIRCUIT BREAKERS

37-SDMS-04 SPECIFICATIONS FOR INTERFACE LOW VOLTAGE MAIN CIRCUIT BREAKERS SPECIFICATIONS FOR INTERFACE LOW VOLTAGE MAIN CIRCUIT BREAKERS This specification is property of SEC and subject to change or modification without any notice CONTENTS Clause Page 1.0 SCOPE 3 2.0 CROSS

More information

COMPACT SUBSTATION GUIDE

COMPACT SUBSTATION GUIDE COMPACT SUBSTATION GUIDE Certificate Number FM35831 1 The substation is a compact enclosure consisting of MV switchgear, a transformer and an LV switchboard located in three separate compartments which

More information

Extensible Unit - VCE2a

Extensible Unit - VCE2a ELECTRICAL INDUSTRIAL COMPANY (EICo) LUCY SWITCHGEAR Extensible Unit - VCE2a (Sabre) Electrical Industrial Company (EICo) Lucy Switchgear Extensible Unit VCE2a Front Panel: ELECTRICAL INDUSTRIAL COMPANY

More information

Medium Voltage Metal-Enclosed Switches

Medium Voltage Metal-Enclosed Switches Medium Voltage Metal-Enclosed Switches Outdoor Medium Voltage Switch.1 Medium Voltage Switch MVS Product Description............................................. 2 Application Description..........................................

More information

CPG.1 Gas insulated, single busbar cubicle range Up to 27 kv / 2000 A / 31.5 ka Up to 38 kv / 2000 A / 31.5 ka IEEE Standards

CPG.1 Gas insulated, single busbar cubicle range Up to 27 kv / 2000 A / 31.5 ka Up to 38 kv / 2000 A / 31.5 ka IEEE Standards Medium Voltage Switchgear Primary Distribution CPG.1 Gas insulated, single busbar cubicle range Up to 27 kv / 2000 A / 31.5 ka General description Presentation Ormazabal s CPG System includes the CPG.1

More information

UniSafe 36 Product Presentation. ABB Elektrik Sanayi A.S. - Page 1

UniSafe 36 Product Presentation. ABB Elektrik Sanayi A.S. - Page 1 UniSafe 36 Product Presentation Elektrik Sanayi A.S. - Page 1 UniSafe 36 air insulated metal-clad internal arc proof Elektrik Sanayi A.S. - Page 2 for power distribution solutions Elektrik Sanayi A.S.

More information

24kV Medium Voltage Switchgear Metal-Enclosed (LSC2A)

24kV Medium Voltage Switchgear Metal-Enclosed (LSC2A) M6 24kV Medium Voltage Switchgear MetalEnclosed (LSC2A) GENERAL FEATURES GENERAL DESCRIPTION The structure of the cubicles, of considerable strength, has selfsupporting structure and is made of steel sheet

More information

Gas Insulated Switchgear

Gas Insulated Switchgear Gas Insulated Switchgear Your partner in energy solutions CG Electric Systems Hungary CG Electric Systems Hungary (previously known as Ganz Electric) has a history of over a 130 years as a high technology

More information

One-Fit,UFES, Reyrolle LM

One-Fit,UFES, Reyrolle LM EPDS SERVICE, SOUTH AFRICA, FRANS BOUWER, 2018. Retrofit Solutions One-Fit,UFES, Reyrolle LM AMEU Namibia,March 2018 Retrofit Agenda 1. Safety 2. One-Fit overview 3. UFES overview 4. Reyrolle LM-Switchgear

More information

Switchgear Arrangement, Torque Requirements, Insulation Systems & Maintenance Intervals. Mike Schmaderer

Switchgear Arrangement, Torque Requirements, Insulation Systems & Maintenance Intervals. Mike Schmaderer Switchgear Arrangement, Torque Requirements, Insulation Systems & Maintenance Intervals Mike Schmaderer Questions Feel free to interrupt There are no dumb questions Just what exactly is Switchgear? The

More information

Switchgear Type SIMOSEC, up to 24 kv, Air-Insulated, Extendable

Switchgear Type SIMOSEC, up to 24 kv, Air-Insulated, Extendable www.siemens.com/medium-voltage-switchgear Switchgear Type SIMOSEC, up to 24 kv, Air-Insulated, Extendable Medium-Voltage Switchgear Catalog HA 41.43 2012 Answers for infrastructure and cities. Neue Bilder

More information

Three days training program (Oct 5-7) on. Substation Earthing, Industrial earthing and Neutral earthing. at IEI Mysore, Karnataka India

Three days training program (Oct 5-7) on. Substation Earthing, Industrial earthing and Neutral earthing. at IEI Mysore, Karnataka India Three days training program (Oct 5-7) on Substation Earthing, Industrial earthing and Neutral earthing at IEI Mysore, Karnataka India Training program is helpful for students, Engineers working in Design

More information

HD4. Gas insulated MV circuit-breakers kv A ka

HD4. Gas insulated MV circuit-breakers kv A ka HD4 Gas insulated MV circuit-breakers 12... 40.5 kv - 630... 3600 A - 16... 50 ka 1 DESCRIPTION Autopuffer breaking technique Electric arc extinction without chopped current No restriking after breaking

More information

Gas Insulated Switchgear ELK-0. for stations up to 170 kv, 4000 A, 63 ka

Gas Insulated Switchgear ELK-0. for stations up to 170 kv, 4000 A, 63 ka Gas Insulated Switchgear ELK-0 for stations up to 170 kv, 4000 A, 63 ka Content General 3 Set-up of a substation 4-5 The system and its components 6-17 Busbar with combined disconnector and earthing switch

More information

Outdoor live tank vacuum circuit breaker Type OVB-VBF for 24/36/40.5 kv applications

Outdoor live tank vacuum circuit breaker Type OVB-VBF for 24/36/40.5 kv applications Outdoor live tank vacuum circuit breaker Type OVB-VBF for 24/36/40.5 kv applications ABB a global leader ABB is a global leader in power and automation technologies that enable utility and industry customers

More information

Study of Fault Clearing by A Circuit Breaker In Presence of A Shunt Capacitor Bank

Study of Fault Clearing by A Circuit Breaker In Presence of A Shunt Capacitor Bank Day 2 - Session V-B 299 Study of Fault Clearing by A Circuit Breaker In Presence of A Shunt Capacitor Bank Murali Kandakatla, B. Kondala Rao, Gopal Gajjar ABB Ltd., Maneja, Vadodara, India Thane Introduction

More information

Catalog HA Edition up to 24 kv, Air-Insulated, Extendable. Medium-Voltage Switchgear. siemens.com/simosec

Catalog HA Edition up to 24 kv, Air-Insulated, Extendable. Medium-Voltage Switchgear. siemens.com/simosec Catalog HA 41.43 Edition 2018 Switchgear Type SIMOSEC, up to 24 kv, Air-Insulated, Extendable Medium-Voltage Switchgear siemens.com/simosec Application Typical uses R-HA41-135.tif R-HA40-112.tif R-HA41-115.tif

More information

EMPAC Metal enclosed capacitor bank for wind applications

EMPAC Metal enclosed capacitor bank for wind applications EMPAC Metal enclosed capacitor bank for wind applications Introduction The EMPAC is a Metal Enclosed Capacitor Bank suitable for voltages between 1 kv and 36 kv for reactive compensation in MV networks

More information

SF 6 Gas Insulated Switchgear Type SDH314 / SDHa314 for 72.5 to 145 kv

SF 6 Gas Insulated Switchgear Type SDH314 / SDHa314 for 72.5 to 145 kv Three Phase Encapsulated Type SF 6 Gas Insulated Switchgear Type SDH314 / SDHa314 for 72.5 to 145 kv 06B1-E-0002 Small Space Requirement, High Reliability and Safety ー 72.5 to 145 kv GIS, SDH314/SDHa314

More information

The University of New South Wales. School of Electrical Engineering and Telecommunications. Industrial and Commercial Power Systems Topic 6

The University of New South Wales. School of Electrical Engineering and Telecommunications. Industrial and Commercial Power Systems Topic 6 The University of New South Wales School of Electrical Engineering and Telecommunications Industrial and Commercial Power Systems Topic 6 PROTECTIONS 1 FUNCTION OF ELECTRICAL PROTECTION SYSTEMS Problems:

More information

SF6 GAS INSULATED METAL ENCLOSED SWITCHGEAR (GIS)

SF6 GAS INSULATED METAL ENCLOSED SWITCHGEAR (GIS) SF6 GAS INSULATED METAL ENCLOSED SWITCHGEAR (GIS) About company The «Elektroapparat» plant starts its operation in 1922 as a plant manufacturing high-voltage electrical equipment. During the first two

More information

18 Industrial and Commercial P ower System Protection

18 Industrial and Commercial P ower System Protection Industrial and Commercial P ower System Protection Introduction 18.1 Busbar arrangement 18.2 Discrimination 18.3 HRC fuses 18.4 Industrial circuit breakers 18.5 Protection relays 18.6 Co-ordination problems

More information

Horizontal Circuit Switchers

Horizontal Circuit Switchers > Transformer Protection > CIRCUIT SWITCHERS C A T A L O G B U L L E T I N General Application Southern States Types CSH and CSH-B Horizontal Circuit Switchers provide an economical, versatile, space saving

More information

ZX-Family Gas-insulated medium voltage switchgear

ZX-Family Gas-insulated medium voltage switchgear ZX-Family Gas-insulated medium voltage switchgear Minimum overall costs ZX offers maximum economy The compact design of the panels reduces the space required and therefore the size of the station. Freedom

More information

The specialist in Medium Voltage

The specialist in Medium Voltage The specialist in Medium Voltage Switchgear www.switchgearcompany.eu SGC, your partner in medium voltage switchgear SGC SwitchGear Company provides reliable products for electrical distribution applications.

More information

ABB Switzerland Ltd High Voltage Products PTHG-V / Marta Lacorte Business Development LAM High Current Systems. Generator Circuit- Breaker Systems

ABB Switzerland Ltd High Voltage Products PTHG-V / Marta Lacorte Business Development LAM High Current Systems. Generator Circuit- Breaker Systems ABB Switzerland Ltd High Voltage Products PTHG-V / Marta Lacorte Business Development LAM High Current Systems Generator Circuit- Breaker Systems. All rights reserved. - 1-07/05/2007 Generator Circuit-Breaker?

More information

ABB AG - Calor Emag Medium Voltage Products OEM Products Medium Voltage Products. ABB OEM Products 1

ABB AG - Calor Emag Medium Voltage Products OEM Products Medium Voltage Products. ABB OEM Products 1 ABB AG - Calor Emag Medium Voltage Products OEM Products Medium Voltage Products 16.04.2012 OEM Products 1 Vacuum Interrupters and Embedded Poles 16.04.2012 OEM Products 2 Vacuum Interrupters and Embedded

More information

Characteristics of LV circuit breakers Releases, tripping curves, and limitation

Characteristics of LV circuit breakers Releases, tripping curves, and limitation Characteristics of LV circuit breakers Releases, tripping curves, and limitation Make, Withstand & Break Currents A circuit breaker is both a circuit-breaking device that can make, withstand and break

More information

Chapter 6 Generator-Voltage System

Chapter 6 Generator-Voltage System Chapter 6 Generator-Voltage System 6-1. General The generator-voltage system described in this chapter includes the leads and associated equipment between the generator terminals and the low-voltage terminals

More information

B kv Gas-insulated Substations

B kv Gas-insulated Substations 72.5 145 kv Gas-insulated Substations The increasing demand for electrical power in cities and industrial centres requires the installation of a compact and efficient distribution and transmission network.

More information

Switchgear Type SIMOSEC, up to 24 kv, Air-Insulated, Extendable

Switchgear Type SIMOSEC, up to 24 kv, Air-Insulated, Extendable Switchgear Type SIMOSEC, up to 24 kv, Air-Insulated, Extendable Medium-Voltage Switchgear Totally Integrated Power SIMOSEC Catalog HA 41.43 Edition Sept. 2014 Answers for infrastructure and cities. Neue

More information

Medium Voltage Metal-Enclosed Switches

Medium Voltage Metal-Enclosed Switches Medium Voltage Metal-Enclosed Switches Outdoor Medium Voltage Switch.1 Introduction Product Selection Guide....................................2 Medium Voltage Switch MVS Product Description......................................

More information

SF 6 Gas Insulated Switchgear Type SDH714 for 72.5 to 145 kv

SF 6 Gas Insulated Switchgear Type SDH714 for 72.5 to 145 kv Three-phase Encapsulated Type SF 6 Gas Insulated Switchgear Type SDH714 for 72.5 to 145 kv 06B1-E-0020 Small Space Requirement, High Reliability and Safety ー 72.5 to 145kV GIS, SDH714 The number of application

More information

High-voltage high-breaking capacity VV fuse-links

High-voltage high-breaking capacity VV fuse-links High- high- VV fuse-links [A] (ka) [mω] [W] [A 2 s] [A 2 s] 12 580 4 6,1 57 4 A 20 370 9 17,3 164 6 A 25 260 10 36 340 10 A 46 55 7 161 1 530 16 A 60 37 13 250 2 270 20 A 80 30 15 430 3 750 25 A 105 25

More information

Medium-voltage fuses 3 kv 40.5 kv, 0.4 A 315 A

Medium-voltage fuses 3 kv 40.5 kv, 0.4 A 315 A DISTRIBUTION SOLUTIONS Medium-voltage fuses 3 kv 40.5 kv, 0.4 A 315 A Continuous protection and reliable operation Proven design and compliance with newest fuses standards Compatibility with other ABB

More information

Extra-High-Voltage SF 6 Gas-Insulated Switchgear

Extra-High-Voltage SF 6 Gas-Insulated Switchgear Extra-High-Voltage SF 6 Gas-Insulated Switchgear Shuichi Sugiyama Masahiko Fujita Takahiro Shinohara 1. Introduction Due to location criteria and toughened restrictions on transportation, it has become

More information

Advance 27 ANSI 27 kv switchgear

Advance 27 ANSI 27 kv switchgear Advance 27 ANSI 27 kv switchgear Table of contents Advance 27...3 AMVAC breaker...4 Instrument transformers...5 Current transformers...5 27 kv voltage transformers...6 Distribution protection and control...7

More information

Range 16A to 63A. Sensitivity 30mA, 100mA, 300mA, 500mA. Execution Double Pole, Four Pole. Specification IEC / IS : 2000

Range 16A to 63A. Sensitivity 30mA, 100mA, 300mA, 500mA. Execution Double Pole, Four Pole. Specification IEC / IS : 2000 The flow of current through electrical facilities always involves risks. Poorly insulated equipment, faulty wires and incorrect use of an electrical devise cause currents to flow through the wrong path

More information

SPEN, Rasmus Larsson, High Voltage Breakers Innovative breaker solutions Substation design

SPEN, Rasmus Larsson, High Voltage Breakers Innovative breaker solutions Substation design SPEN, Rasmus Larsson, High Voltage Breakers 2014-05-06 Innovative breaker solutions Substation design Innovative breaker solutions High performance substations ABB FOCS Ludvika High Performance DCB HVDC

More information

Metal Clad Switchgears

Metal Clad Switchgears SNC Series Metal Clad Switchgears > up to 36 kv Rated Voltage > up to 2500 A Rated Current > up to 40 ka Rated Short Time Withstand Current > LSC-2B, PM, AFLR > In Confirmity with IEC 62271-1, 100, 102,

More information

ABB AG - EPDS. Ultra-Fast Earthing Switch UFES active internal arc protection

ABB AG - EPDS. Ultra-Fast Earthing Switch UFES active internal arc protection ABB AG - EPDS Ultra-Fast Earthing Switch UFES active internal arc protection Agenda Arc fault Protection concepts Ultra-Fast Earthing Switch type UFES Principle Components Differentiation of protection

More information

MAGNETIC MOTOR STARTERS

MAGNETIC MOTOR STARTERS Chapter 6 MAGNETIC MOTOR STARTERS 1 The basic use for the magnetic contactor is for switching power in resistance heating elements, lighting, magnetic brakes, or heavy industrial solenoids. Contactors

More information

COMPACT AND EXTENSIBLE RING MAIN UNIT. insulated Ring Main Unit with load break switch or integrated vacuum circuit breaker

COMPACT AND EXTENSIBLE RING MAIN UNIT. insulated Ring Main Unit with load break switch or integrated vacuum circuit breaker DR-6/DT-6 COMPACT AND EXTENSIBLE RING MAIN UNIT BUILT TO LAST! DR-6/DT-6 Compact and/or extensible SF 6 insulated Ring Main Unit with load break switch or integrated vacuum circuit breaker SAFETY, RELIABILITY,

More information

SION Vacuum Circuit-Breakers. Answers for energy. Medium-Voltage Equipment Selection and Ordering Data. Catalog HG

SION Vacuum Circuit-Breakers. Answers for energy. Medium-Voltage Equipment Selection and Ordering Data. Catalog HG Medium-Voltage Equipment Selection and Ordering Data Catalog HG 11.0 008 Answers for energy. R-HG11-17.tif Siemens HG 11.0 008 Contents Contents Page SION Vacuum Circuit-Breakers Description General Construction

More information

Safe, fast HV circuit breaker testing with DualGround technology

Safe, fast HV circuit breaker testing with DualGround technology Safe, fast HV circuit breaker testing with DualGround technology Substation personnel safety From the earliest days of circuit breaker testing, safety of personnel has been the highest priority. The best

More information

Substation Committee K2 TF1 of the GIS Subcommittee GIS/GIL/SF 6 -Tutorials

Substation Committee K2 TF1 of the GIS Subcommittee GIS/GIL/SF 6 -Tutorials IEEE/PES Substation Committee - Subcommittee IEEE Substation Committee K2 TF1 of the Subcommittee /GIL/SF 6 -Tutorials -1- IEEE/PES Substation Committee - Subcommittee IEEE Gas Insulated Switchgear ()

More information

AIR INSULATED METAL ENCLOSED SWITCHGEAR AND CONTROLGEAR

AIR INSULATED METAL ENCLOSED SWITCHGEAR AND CONTROLGEAR AIR INSULATED METAL ENCLOSED SWITCHGEAR AND CONTROLGEAR ANGLER SWITCHING DEVICES CONTENTS 1. General 2. Switchgear Types - Switch Disconnector - Disconnector 3. Cubicle Types - Cubicle with Switch Disconnector

More information

Metal-Enclosed Switches. Medium Voltage. Medium Voltage Metal-Enclosed Switches Contents

Metal-Enclosed Switches. Medium Voltage. Medium Voltage Metal-Enclosed Switches Contents January 2003 Vol. 1, Ref. No. [1011] -1 Medium Voltage Metal-Enclosed Switches Contents Description Page MVS................................... -2 and Breaker MSB........................ -3 Metal-Enclosed

More information

e 2 ALPHA -2S Medium Voltage Double Busbar Switchgear K Catalogue EN

e 2 ALPHA -2S Medium Voltage Double Busbar Switchgear K Catalogue EN e 2 ALPHA -2S Medium Voltage Double Busbar Switchgear K-11.1.2 Catalogue EN We Create Ideas With Power! e 2 ALPHA-2S double busbar switchgear is designed for use in primary and secondary electric energy

More information

SWITCHGEAR FOR SERVICE UP TO 36kV (CABLE AND OVERHEAD CONDUCTOR CONNECTED)

SWITCHGEAR FOR SERVICE UP TO 36kV (CABLE AND OVERHEAD CONDUCTOR CONNECTED) PRODUCED BY THE OPERATIONS DIRECTORATE OF ENERGY NETWORKS ASSOCIATION Issue 3 2012 SWITCHGEAR FOR SERVICE UP TO 36kV (CABLE AND OVERHEAD CONDUCTOR CONNECTED) www.energynetworks.org 2012 Energy Networks

More information

Substation Concepts for the Future

Substation Concepts for the Future Anders Sjoelin, ABB Power Systems IEEE Substations ti Committee Meeting Substation Concepts for the Future April 26, 2012 Slide 1 Reminder Anything that is in the world when you re born is normal and ordinary

More information

Power IT Air Insulated Cubicle Uniswitch

Power IT Air Insulated Cubicle Uniswitch - 1-4/2/2003 Secondary Distribution Switchgear Power IT Air Insulated Cubicle Uniswitch Table of Contents Market segment Ratings New for 2003 Technical features Advantages Market segment Uniswitch Switchgear

More information

Energy Transmission & Distribution Services - Italy. SVEPPI laboratory...our services for your success. Answers for energy.

Energy Transmission & Distribution Services - Italy. SVEPPI laboratory...our services for your success. Answers for energy. Energy Transmission & Distribution Services - Italy SVEPPI laboratory...our services for your success. Answers for energy. ...our services for your success ENERGY - T&D Services Experience teaches us that

More information

OHB Outdoor sulphur Hexafluoride circuit-breaker

OHB Outdoor sulphur Hexafluoride circuit-breaker 1-2002 OHB Outdoor sulphur Hexafluoride circuit-breaker ABB T&D Divisione Sace T.M.S. -01.05.15 - Fields of application outdoor installations control and protection of distribution lines control and protection

More information

Overview Gas Insulated Switchgear Modular and flexible, kV. ABB Group April 17, 2009 Slide 1

Overview Gas Insulated Switchgear Modular and flexible, kV. ABB Group April 17, 2009 Slide 1 Overview Gas Insulated Switchgear Modular and flexible, 52-1100kV April 17, 2009 Slide 1 Tradition and Innovation Milestones from more than 40 Years of Experience Pioneer & Leader in GIS-Technology 1956

More information

Molded Vacuum Reclosers The recloser you want, all in one package. Single- and Three-Phase Molded Vacuum Reclosers, 15 38kV

Molded Vacuum Reclosers The recloser you want, all in one package. Single- and Three-Phase Molded Vacuum Reclosers, 15 38kV The recloser you want, all in one package. Single- and Three-Phase, 15 38kV The need for automated reclosers has never been greater, but many of today s reclosers come with penalties. They weigh too much,

More information

PASS M0. Innovative solutions for distribution substations up to 170 kv

PASS M0. Innovative solutions for distribution substations up to 170 kv PASS M0 Innovative solutions for distribution substations up to 170 kv The concept In the today s changing market, the substation is becoming more and more a key element to meet end users requirements

More information

Small wonder. Station service voltage transformers for small power requirements

Small wonder. Station service voltage transformers for small power requirements Small wonder Station service voltage transformers for small power requirements MATHEW PAUL An estimated 1.3 billion people worldwide have no access to electricity. In small communities, this is often due

More information

Pankaj Khali, ABB India Limited Representing :ABB Switzerland limited, September 2016 Generator Circuit-Breakers. Technical Seminar: PLN

Pankaj Khali, ABB India Limited Representing :ABB Switzerland limited, September 2016 Generator Circuit-Breakers. Technical Seminar: PLN Pankaj Khali, ABB India Limited Representing :ABB Switzerland limited, September 2016 Generator Circuit-Breakers Technical Seminar: PLN Agenda Advantages of Generator Circuit-Breakers Criteria of Selection

More information

UniPack compact secondary substations (CSS) upto 36 kv For safe, reliable and space saving power distribution solutions

UniPack compact secondary substations (CSS) upto 36 kv For safe, reliable and space saving power distribution solutions UniPack compact secondary substations (CSS) upto 36 kv For safe, reliable and space saving power distribution solutions ABB a global leader ABB is a global leader in power and automation technologies that

More information

Circuit Breaker Prepared By :

Circuit Breaker Prepared By : Circuit Breaker Prepared By : Eng : Ayman Soliman Selmy Circuit Breaker Specification of circuit Breaker:- [1] Operating voltage of C.B [2] Rated current of C.B (Ir or In) Amp. [3] Instantaneous short

More information

Unitole UP kv Primary substations Motor control centres

Unitole UP kv Primary substations Motor control centres Unitole UP 3.6-17.5 kv Primary substations Motor control centres Product Focus Air-insulated withdrawable switchgear with vacuum circuit-breakers and contactors Creating Solutions Eaton creates power-engineering

More information

123/145kV SF6 Gas-Insulated Switchgear incorporating VCB. 145kV-1250~2000A-31.5kA

123/145kV SF6 Gas-Insulated Switchgear incorporating VCB. 145kV-1250~2000A-31.5kA 123/145kV SF6 Gas-Insulated Switchgear incorporating 145kV-1250~2000A-31.5kA 1. General The circuit breaker technology has evolved along with properties and faster insulation recovery capabilities that

More information

Question Set(2017) Switch Gear & protection(5 th SEm) 9. Explain the construction and operating principle with proper diagram:

Question Set(2017) Switch Gear & protection(5 th SEm) 9. Explain the construction and operating principle with proper diagram: Question Set(2017) Switch Gear & protection(5 th SEm) 1. What is fault in power system? Classify the fault. What are the bad effects of fault? 2. Define with example: Symmetrical fault and unsymmetrical

More information

Unitole UP kv Primary substations Motor control centres

Unitole UP kv Primary substations Motor control centres Unitole UP 3.6-17.5 kv Primary substations Motor control centres Product Focus Air-insulated withdrawable switchgear with vacuum circuit-breakers and contactors Creating Solutions Eaton Holec creates power-engineering

More information

Overview Gas Insulated Switchgear Modular and flexible, kV. ABB Group May 15, 2013 Slide 1

Overview Gas Insulated Switchgear Modular and flexible, kV. ABB Group May 15, 2013 Slide 1 Overview Gas Insulated Switchgear Modular and flexible, 52-1100kV May 15, 2013 Slide 1 Tradition and Innovation Milestones from more than 40 Years of Experience Pioneer & Leader in GIS-Technology 1956

More information

UniGear. Technical Guide

UniGear. Technical Guide UniGear Technical Guide CONTENTS 0 CONTENTS 1.1 Compartments 1/2 1.2 Components of the structure 1/3 1.2.1 Hot-galvanized steel sheet 1/3 1.2.2 Painted steel sheet 1/4 1.2.3 Copper 1/5 1.2.4 Insulating

More information

Accelerate your grid modernization with smart RMUs. Ring main units with smart grid-ready feeder automation

Accelerate your grid modernization with smart RMUs. Ring main units with smart grid-ready feeder automation Accelerate your grid modernization with smart RMUs Ring main units with smart grid-ready feeder automation schneider-electric.com/smart-rmu Contents > Take charge of your grid evolution For deployment

More information

Medium voltage NEX switchgear Withdrawable circuit breaker. Quite simply efficient

Medium voltage NEX switchgear Withdrawable circuit breaker. Quite simply efficient Medium voltage NEX switchgear Withdrawable circuit breaker Quite simply efficient NEX, a simple and flexible solution NEX is the result of worldwide acquired experience and provides you with a high level

More information

SafeGear TM Motor Control Center Arc resistant metal-clad construction Motor Control Center Descriptive bulletin

SafeGear TM Motor Control Center Arc resistant metal-clad construction Motor Control Center Descriptive bulletin SafeGear TM Motor Control Center Arc resistant metal-clad construction Motor Control Center Descriptive bulletin Contents 1. Introduction 2 2. Product highlights 2 3. Available configuration/competitive

More information

Vacuum Generator Circuit Breaker - A trend-setting power plant technology

Vacuum Generator Circuit Breaker - A trend-setting power plant technology Vacuum Generator Circuit Breaker - A trend-setting power plant technology Stefan Schmid, Business Development Generator Breaker Switchgear siemens.at/future-of-energy for the power supply of tomorrow Table

More information

SWITCHCRAFT. Switchcraft Europe GmbH SWITCHCRAFT

SWITCHCRAFT. Switchcraft Europe GmbH SWITCHCRAFT SWITCHCRAFT Switchcraft Europe GmbH Switchgear Product Overview igis Gas Insulated Switchgear isis Solid Insulated Switchgear icb - Vacuum Circuit Breaker iair - Air insulated switchgear panel Switchcraft

More information

Distribution transformers Efficiency over life-cycle

Distribution transformers Efficiency over life-cycle Distribution transformers Efficiency over life-cycle ABB a global leader ABB is a global leader in Power and Automation technologies that enable utility and industry customers to improve performance while

More information

Gas-insulated medium-voltage switchgear. For the mining industry. Answers for energy.

Gas-insulated medium-voltage switchgear. For the mining industry. Answers for energy. Gas-insulated medium-voltage switchgear For the mining industry Answers for energy. Full power even under extreme conditions Reliable All over the world, the demand for mineral resources is increasing.

More information

Standards, Procedures and Policies for Grid Connection

Standards, Procedures and Policies for Grid Connection Standards, Procedures and Policies for Grid Connection CONTENTS 1 INTRODUCTION 1 2 EMBEDDED GENERATION 1 2.1.1 OUTLINE OF EMBEDDED GENERATION 1 2.1.2 CHANGES IN EMBEDDED GENERATION 1 2.1.3 ASPECTS OF EMBEDDED

More information

ZX2 Gas-insulated medium voltage switchgear

ZX2 Gas-insulated medium voltage switchgear Gas-insulated medium voltage switchgear Double busbar 13 8 10 12 11 10 9 8 7 2 1 3 4 5 6 2 Versatile Partitioned single or double busbar system for all applications even with the most demanding parameters

More information