Persian Tajhiz Niroo Engineering Co.

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3 03 Persian Tajhiz Niroo Engineering Co. 05 07 19 51 61 Briefs History LV MV Prefabricated Substetion Pad Mounted Substetion

Brief History 5 www.persiantajhiz.com Persian Tajhiz Engineering Group is supported by both academic qualifications & valuable work experience of its senior managers to meet the needs of the Electrical Power Industry in the field of Electric Power Transmission & Distribution. The company started it's activities by stabilishing tow companies and now is one of the most reputable names in the Industry. Stay Strong in Their own way... Persian Tajhiz Niroo Co. with a fully equipped factory useing latest facilities on it's production line & test department as well as qualified experts in all proficiencies of the factory we have confirmation from the Institute of energy & type test certificates from accredited international laboratories and a membership to the Iranian electrical panel manufacturing associate. (IEPMA) Products: > > All kind of Low Voltage panels Fix & Withdrawable up to 7400A > > All kind of Medium Voltage panels, Fix & Withdrawable up to 36kv > > Prefabricated substations with Metal Enclosure > > Half-Oil Pad Mounted substations > > All kind of Street & Decorative Pole Lighting Persian Tajhiz Energy Co. is working in the field of Design, Engineering, Procurement, and Construction of urban & suburban Electrical Power Networks. Activities: > > Transmission & Distribution Electrical Power Networks Engineering > > Transmission & Distribution Electrical substation Procurement > > Urban & Suburban street lighting project > > Urban & Suburban tunnel lighting project

7 www.persiantajhiz.com 06 Persian Tajhiz Niroo Engineering Co. Low Voltage Panel LV

9 Low Voltage Panel Type Fix Categories: Image In Door Out Door Shulter

General Features > > Flexible > > Completely bolted all connections > > Plate thickness: 2mm > > Double bending > > Natural ventilation > > Easy and quick installation > > Easy utilization > > Extendable or modular configuration > > Designed according to IEC standard > > Maintenance free Indoor Panel > > Cubicle Lighting > > Incoming Cubicle > > Outgoing Feeder Cubicle > > Vertical Fuse Switch > > Downdrop Ventilation > > M C C B or A C B > > Data Logger > > Main Busbar > > Load Break Switch with Fuse > > Null Busbar > > Earthing Busbar Outdoor Panel 11 > > Roof with two slopes > > Lifting eye > > Non rusty hinge > > Lock enclosure > > Dropdown ventilation > > Busbar enclosure > > M C C B > > Load Break Switch with Fuse > > Null Busbar > > Earthing Busbar Shulter Panel > > Roof with two slopes > > Lifting eye > > Non-rusty hinge > > Dropdown ventilation > > Pocket of Technical Drawing > > Load Break Switch with Fuse M C C B > > Null Busbar

13 Low Voltage Panel Type Withdrawable Sivacon Design Image

SIVACON LV Switchgear Up to 7400 A Cubicle Type: 15 The SIVACON Low Voltage switchgear is the standard solution for Industry Engineering. SIVACON has been designed to meet the requirements of the global market. The SIVACON is produced around the world, particularly as motor control centres for the chemical industry and other industrial applications, such as sewage works, water works, etc. and can be used at all performance levels up to 7400 A. > > Circuit - Breaker Design - Type FCB > > Withdrawable - Unit Design - Type CFWvv > > Power Factor Correction Cubicle - Type PFC > > Outgoing Feeders Fixed - Mounted Design - Type OFF > > Plug - in Design - Type OFPM > > Cubicle for Customised Solution - Type CCS > > Outgoing Feeders Fixed-mounted Design for in - Line Fuse Switch - Disconnestor - Type OFFD

17 Modular Construction Each SIVACON is produced from standardised and typical modules are top quality because of the standard audit and design specifications. The numerous combination options of these modules enable all requirements to be met. The exclusive use of high quality Siemens switchgear guarantees long service life and reliable operation. Inspections / Tests Each SIVACON switchgear is subject to a routine test before delivery: > > Checking switchgear combinatiions, including wiring and, if necessary, electrical function tests and insulation tests. > > Checking the safety measures and thwcontinous ground lead connection. The switchgear are type - tested ( TTA ), Standard: > > IEC 60 439-1 > > DIN EN 60 439-1 > > VDE 0660 Part 500 This is implemented by: > > Proof of compliance with temperature rise limits by testing > > Proof of insulation resistance by testing > > Proof of short - circuit strength by testing > > Proof of good connection between units in the switchgear assembly and the ground connection by checking or resistance and measurements > > Proof of short - circuit strength of the ground connection by testing > > Proof of clearance and creepage distances > > Proof of mechanical functions > > Proof of IP degree of protection Standards and Specifications Creepage distances and clearances Type-tested switchgear and control gear assembly (TTA) Rated impulse withstand voltage (U imp ) Overvoltage category Pollution degree Testing of response to internal faults. (arcing faults)(690 V, 50 ka, 300 ms) Rated Insulation Voltage (U i ) 1000 V Rated Operational Voltage (U e ) Upto 690 V Rated Currents (I n ) Busbars (3 - pole and 4 - Pole) Technical Data: Main horizontal busbars Rated Current Upto 7400 A Vertical busbars for circuit-breaker design Vertical busbars for fixed-mounted design Vertical busbars for in-line plug-in design(3jn6) Vertical busbars for plug-in design and withdrawable design 8 kv III 3 Rated peak withstand Current (I pk ) Upto 375 ka Rated short-time Withstand current (I cw ) Upto 150 ka,1s Upto 120 ka,3 s Rated Current Upto 6300 A Rated peak withstand Current (I pk ) Upto 250 ka Rated short-time Withstand current (I cw ) Upto 100 ka,1s Upto 80 ka,3 s Rated Current Upto 2800 A Rated peak withstand Current (I pk ) Upto 163 ka Rated short-time Withstand current (I cw ) Upto 65 ka *,1s Upto 50 ka,3 s Rated Current Upto 2100 A Rated peak withstand Current (I pk ) Upto 110 ka Rated short-time Withstand current (I cw ) Upto 50 ka *,1s Rated Current Upto 1200 A Rated peak withstand Current (I pk ) Upto 163 ka Rated short-time Withstand current (I cw ) Upto 65 ka *,1s Upto 50 ka,3 s Switchgear Rated Currents Circuit-breakers Upto 6300 A Outgoing feeders Upto 630 A Internal Separation Form 1 to Form 4 IEC 60439-1, Section 7.7, DIN EN 60439-1 Sur face Tr eatment Frame Partsr Galvanised/Powder-Coated/Wet painted Enclosur Galvanised/Powder-Coated/Wet painted Doors Powder-Coated/Wet painted Degree of Protection to IEC 60529, EN 60529 IP 30 to IP 54 Dimensions Height: 2200, 2600mm (with busbar top unit) Width: 400, 600, 800, 1000, 1600 mm Depth: 600, 800, 1000, 1200 mm *Rated Conditional Short-Circuit Current /cc Upto 100 ka

19 www.persiantajhiz.com 18 Medium Voltage Panel MV Persian Tajhiz Niroo Engineering Co.

Medium Voltage 21 Panel Type Fix Uniswitch Design Image

23 Uniswitch Design MV Switchgrear up to 24kV The features of uniswitch panel include its light weight, best quality, flexibility extendeable, simple design, high security and developed as a modular. This generation of switchgears is such a worldwide switchgear development, utilizing the global experience and innovation to respond to all customer's requests at any place. Uniswitch switchgear is designed for various functions and the best choice for Electrical Power Distribution Networks. By minimum number of sections and utilizing modern equipment and simple construction we have developed a product suitable for markets in all around the world and even able to meet next generation s demands. Switchgear Compartments Top Unit position - 3 switch disconnector SFG > > Operating Mechanism with mechanical position indication > > > > Enclosure of busbar compartment > > Integrated low voltage compartment for secondary components > > Interlocking Unit > > Busbars > > Control cable ducts > > Mechanical position indication > > Earthing switch including interlocked operation device > > Earthing bar & Barthing bar > > Enclosure of cable compartment > > Fuse tripping with indication > > Metal enclosed Alu - Zinc steel cubicle enclosure with integrated rear mounted arc gas chanel > > Widrawable circuit breaker vacum or SF6 - type incuding > > Interlocked LV cable plug > > Non - metalic partitioning & shalter > > Bushings > > Motor device Bottom Unit > > Enclosure > > Circuit breaker(fixed Version) > > Current transformers > > Earthing switches > > Voltage transformesr > > Cable entry with cable support > > Fuse base > > Paralled cable connection possibility > > Bottom cover

25 24 Switchgear construction Swichgear compartment B usbar Compartment: is located in the cubicle, including the main Basbar to make connection between Basbar and cubicle. Switching Compartment: is including a 3-position SF6 Switch disconector with epoxy cast resin enclosure as well as the inspection windows and optional gas density indicator. Cable Compartment: is the 75% of internal space where is provided for cable connection with a simple terminal which makes it possible to use both a 3phase cable and 3single phase cable. This part is equipped with an inspection window and safe interlocking system according to the international standards. There are three indivisual cable glands in the bottom for cable incoming which get to be used for cables in different size by a special pin or clamp. the indivisual cable glands can be removed easily for cable installation Operating Interlocking Mechanism and Low Voltage (LV) Compartment: is including spring operation mechanism with position indicator, mechanical interlocking system and any other accessory such as axillary condact, Tripping coil, emergency tripping mechanism, capactive voltage presence indicator and motor operating system as well as some additional space which is provided for control circuits and measuring instrument and a protection relay. In the cubicle with 750mm wide there is second space for more requested accessories.

Switch Disconnector cubicle, Type SDC Technical Description SDC Type is Generally used as an incoming, Ring or Branch Cubicle: The main part is including a 3 -position SF6 load Break Switch Type SFG, equipped with operation mechanism. «The 3 -position switch disconnector is one of three position, Closed, Open or Earthed». The avoid incorrect operating, cable compartment is available only in earthed position. The open & close positions are visible through the inspection windows, provided on the door of low voltage compartment. Cable connetion and fault indicator can be inspected easily, during, operation, through the front-door window. For more security, the door of cable compartment is equipped with a meshancal interlocking system, updated with the latest techniques. Switch Disconnector cubicle With Fuse,Type SDF Technical Description SDF switch disconnector is used for transformer protection, including 3 -position SF6 switch disconnector with integrated earthing switch which operates on the upstream side earthing. A separate earthing switch operates on the downstream side of the fuses, for fuse. The used mechanism in this type of cubicle is double spring type with automatic fuse tripping device. Cable compartment is available only in earthed position and close & open position are available through an indicator provided on low voltage compartment s door and cable connection and fault indicator can be inspected easily during operating time, through the frontdoor window. 27 Accessories > > g as density indication with alarm contact. > > integrated voltage indicators or socket interface for portable indicators. > > auxiliary contacts for close (2 NO + 2 NC) and earth(2 NO + 2 NC) position. > > motor operation device. > > current transformers. > > through going earthing heater > > appuratus earthing bar > > short c ircuit indicator > > arc gas channel > > surge arresters > > anti condensation heater Accessories > > integrated voltage indicators or socket interface for portable indicators > > auxiliary contacts for close (2NO+2NC) and earth (2NO+2NC) position > > auxiliary contacts for fuse tripped, 1N O + 1NC > > voltage transformers > > emergency tripping > > motor operation device > > channel for control cables > > through-going earthing bar > > anti condensation heater > > gas density indication with alarm contact > > apparatus earthing > > arc-gas channel > > tripping coil

Circuit breaker Cubicle,Type CBC Technical Description trans- CBC s design is suitable for control and protection of distribution lines, networks, motors, formers, capacitors bank etc. CBC cubicle can be equipped with SF- 6 gas or vacuum circuit breaker, which is rail mounted or fixed to the basbars. A 3 -position switch disconnector, including an earthing switch is provided between circuit breaker and busbar For operator security, MV compartment s door is mechanically interlocked and equipped with an earthing switch. The cubicle has the ability to be equipped with CT & VT. Withdrawable circuit breaker cubicle, Type CBW Technical Description 29 CBW panel is equipped with a withdrawable circuit breaker CBW s design is suitable for control & protection of distribution lines, networks, motors, transformers, capacitors bank etc. CBW is available with both SF6 - gas or vacuum circuit breaker.t he cubicle is including the handles for disconnecting operation of circuit breaker. A separate earthing switch enables earthing of cable for operator security, MV compartment s door is mechanically interlocked and equipped with the circuit breaker and earthing switch. A wide range of the simplest self-powered protection relays to complicated protection, monitoring and controlling devices is available for the cubicle to secure control & protection equipment. Accessories circuit breaker, vacuum- or SF6 - type > > integrated voltage indicators or socket interface for portable indicators > > auxiliary contacts for close(2no + 2NC) and earth (2NO + 2NC) position > > gas density indication with alarm contact for switch disconnector > > motor operation device > > cable core transformer > > > > channel for control cables > > current transformers > > voltage transformers > > arc-gas channel > > anti condensation heater > > apparatus earthing bar > > through going earthing bar Accessories > > integrated voltage indicators or socket interface for portable indicators electrical interlocking of earthing switch > > current transformers > > voltage transformers or surge arresters > > cable core transformer > > additional auxiliary contacts > > through-going earthing bar > > channel for control cables > > apparatus earthing bar > > > > anti condensation heater > > electrical interlocking of truck

Direct Busbar connection Cubicle, Type DBC Bus Riser cubicle, Type BRC 31 Technical Description The DBC cubicle is used to connect cables to the busbars. The cubicle is equipped with connection lugs for fixing the cables. CTs installation is possible only in 500mm - width cubicle The lower front door is fixed and can only be opened with a tool when earthing switch is not included. The door has a window for inspection. Technical Description BRC cubicle has the ability to be equipped with a sectionalising cubicle, including circuit breaker or switch disconnector The sectionalising cubicle with 500mm width can be used as a metering cubicle with space for 3CTs & 3VTs. The door of MV compartment is fixed and can be opened in special & interlocked situation and with an inspection window on the door. Accessories > > i ntegrated voltage indicators or socket interface for portable indicators > > current transformers > > earthing switch for CTs (EM) > > arc-gas channel > > channel for control cables > > surge arresters > > Anti condensation heater > > through-going earthing bar Accessories > > i ntegrated voltage indicators or socket interface for portable indicators > > auxiliary contacts for earthing switch, 2NO+ 2NC > > earthing switch with position indication > > current transformers > > voltage transformers > > arc-gas channel > > channel for control cables > > anti condensation heater > > through-going earthing bar

Sectionalising Cubicle, Type SEC Technical Description Sectionalising Cubicle with Fuse, Type SEF Technical Description 33 cubicle. The SEC cubicle is used together with the bus riser The standard 375mm width cubicle is equipped with a SF6 - insulated, 3 - position switch disconnector to sectionalize the busbars. standard.) Earthing ) facility is always provided as a SEF cubicle is used when a sectionalising cubicle with fuse protection or the measuring on the transformer feeder is required. For fuse earthing, the integrated earthing switch operates on the upstream side and separate earthing switch operates on the downstream side of the fuses. The used mechanism in this type of cubicle is double spring with automatic fuse tripping device. Access to cable compartment is only possible in earthed-position. The open & close positions are visible through the inspection windows, provided in Low voltage compartment. possible) Busbar ) connections to both left and right are Accessories > > integrated voltage indicators or socket interface for portable indicators Auxiliary contacts for close (2NO + 2NC) and earth (2NO+ 2NC) position > > gas density indication with alarm contact > > motor operation device > > Current transformers > > Channel for control cables > > Anti condensation heater > > through-going earthing bar > > Apparatus earthing bar > > voltage transformers > > arc-gas channel > > Accessories > > integrated voltage indicators or socket interface for portable indicators Auxiliary contacts for close (2NO+ 2NC) and earth (2NO+ 2NC) position > > Auxiliary contacts for fuse tripped,1no+ 1NC > > gas density indication with alarm contact > > Emergency tripping > > tripping coil > > motor operation device > > arc-gas channel > > channel for control cables > > Anti condensation heater > > through-going earthing bar > > Apparatus earthing bar > >

Sectionalising Breaker Cubicle, Type SBC Technical Description SBC is used with a bus riser cubicle, the standard cubicle is equipped with a 3 -position, SF6 switch disconnector in series with circuit breaker for sectionalizing the busbar, the circuit breaker can be rail mounted or fixed in vacuum or SF6 type For operator safety the door of cubicle is mechanically interlocked and can be opened only in earthed position of switch disconnector. The cubicle is designed to be equipped with CTs and VTs. 35 Sectionalising Widrawable able Breaker Cubicle, Type SBW Technical Description The SBW cubicle is a sectionalising circuit breaker panel equipped with a withdrawable circuit breaker. The SBW is used together with the bus riser cubicle (BRC). The cubicle is designed for sectionalising the busbar in the switchgear and is available in two types, vacuum or SF6 - gas circuit breaker.the CB truck handles the disconnecting function of the circuit breaker. A separate earthing switch enables earthing of the bus bar. For operator safty, the door is mechanically interlocked and equipped with a circuit breaker and an earthing switch. A wide range of the simplest self-powered protection relays to complicated protection, monitoring and controlling devices is available for the cubicle to secure control & protection equipments. Accessories > > auxiliary contacts for close(2no+ 2NC) and earth (2NO+ 2NC) position > > gas density indication with alarm contact for switch disconnector > > circuit breaker, vacuum- or SF6 - type > > integrated voltage indicators or socket interface for portable indicators > > current transformers > > arc-gas channel > > channel for control cables > > earthing switch type EM > > anti condensation heater > > through-going earthing bar > > voltage transformers > > motor operation device > > apparatus earthing bar Accessories > > i ntegrated voltage indicators or socket interface for portable indicators > > current transformers > > additional auxiliary contacts > > channel for control cables > > anti condensation heater > > through-going earthing bar > > apparatusearthing bar

Sectionalising Metering Cubicle With Disconnector, Type SMD Sectionalising Metering Cubicle,Type SMC Technical Description 37 Technical Description SMD cubicle is generally used when the medium voltage metering and/or switchgear sectionalising is required The SMD cubicle is based on operation of two separately operated 3 -position, SFG type switch disconnectors bars. Switch disconnectors are insulated at the ends of sectionalised bus switchgear. DIN size VTs and CTs are available on right hand side of the 3 -position switch disconnectors are interlocked with cubicle front door and the cable compartment is accessible only when both switch disconnectors are in earthed-position. SMC cubicle is generally used when the medium voltage metering and/or switchgear sectionalising is required The SMC cubicle is based on operation of one rail mounted circuit breaker and two separately operated 3 -position, SFG type switch disconnectors. Switch disconnectors are insulated at the ends of sectionalised busbars with the circuit breaker in between and after left hand side switch disconnector. men- DIN size VTs and CTs are available on right hand side of the Circuit breaker, in previously tioned order, position - 3 switch disconnectors are interlocked with cubicle front door and the cable compartment is accessible only when both switch disconnectors are in earthed-position. Accessories > > integrated voltage indicators or socket interface for portable indicators auxiliary contacts for close (2NO- 2NC) and earth (2NO+ 2NC) position > > gas density indication with alarm contact for switch disconnector > > apparatus earthing bar > > channel for control cables > > current transformers > > voltage transformers > > arc-gas channel > > anti condensation heater > > through-going earthing bar > > Accessories > > c ircuit breaker, vacuum- or SF6 - type integrated voltage indicators or socket interface for portable indicators > > auxiliary contacts for close(2no- 2NC) and earth (2NO+ 2NC) position > > gas density indication with alarm contact for switch disconnector > > current transformers > > voltage transformers > > channel for control cables > > arc-gas channel > > anti condensation heater > > through-going earthing bar > > apparatus earthing bar > >

Bus Metering Cbicle, Type BMC Technical Description Universal Metering Cbicle, Type UMC Technical Description 39 BMC cubicle is generally used when the medium voltage meteringis required DIN size VTs and CTs are available on right hand side of cubicle The cable compartment is accessible only when the interlocking unit is in the door open position. The UMC cubicle is used when a special arrangement of equipment and connecting to the other MV cubicles are required. The cubicle is very flexible and meets all kind of requested arrangements by costumers. Accessories Accessories > > integrated voltage indicators or socket Current transformers > > voltage transformers > > channel for control cables > > arc-gas channel > > anti condensation heater > > through-going earthing bar > > integrated voltage indicators or socket interface for portable indicators > > current transformers > > voltage transformers > > channel for control cables > > arc-gas channel > > anti condensation heater > > through-going earthing bar

41 Earthing Switches The earthing switch for earthing parts main circuits is incorporated in the switch disconnector SFG - three position switch. The earthing switch has double bladed moving knives. the fixed contacts are connected together (short-circuited) to a common earthing bar insid the switch housing. Outside the housing is an earthing terminal for connection to an earthing conductor. The main earthing switch is incorporated in the switch disconnector SFG. The earthing switch has 3 double bladed moving knives. the fixed contacts are connected together to a common earthing bar inside the switch housing. Fused switch disconnector cubicles are equipped with two earthing switches. Because the both ends of fuse links are earthed, the fuse links can be replased by hands without any special tools. The earthing switch, type EF, has reduced making capacity due to the fact that no full short circuit current can occur.(fuse down stream). Earthing switch, type EM, is used for earthing of cable terminations in circuit breaker cubicles and when the main busbar earthing is needed. All earthing switches have true position indicators through the front door and are operated by the main operating shaft in the front of panel. SFG EF Diffrent Configurations: SFG EF EM EM EM For fuse base(down Stream) > > EF 210 Earthing of cable terminations and busbar > > EM 210 Optional equipment > > Auxliliary contacts (2 NO + 2NC) Technical Date IEC 62271-102 Rated Voltage [Kv] 12 17.5 24 Making Capacity EF 210 [KA] 5 5 5 EM 210 [KA] 62.5 50 50

The Range of Cubicles: Tecnical Data: 43 SDC SDF CBC CBW DBC BRC SEC Rated Voltage Ur kv 12 17.5 24 BIL - Common Value - across the isolating distance kv 75 85 95 110 125 145 Depth Height Width 1000 1635 375 1000 1635 500 1000/1155 1635 750 1000 1885 375 1000 1885 500 1000/1155 1885 750 1340 1885 800 (mm) (mm) (mm) Switch - disconnector cubicle Fused Switch disconnector fuse Circuit breaker cubicle Withrawable Circuit breaker cubicle Direct busbar connection cubicle Bus rise cubicle Sectionalising cubicle SEF SBC SBW SMD SMC BMC UMC AC Withstand Voltage - Common Value - across the isolating distance kv 28 1) 32 1) 38 1) 45 1) Rated Frequency Hz 50/60 50/60 50/60 Rated Current - Busbar - Feeder Rated short-time withstand current - Main Circuit - Earthing Circuit A A ka ka 630/1250 630/800/1250 4) 25 25 630/1250 630/800/1250 4) 20 20 50 60 630/1250 630/1250 4) Rated Peak Withstand Current ka 65 50 50 Rated Duration of short circuit s 1 1 1 20 20 Arc - Fault Current, 1 s ka 20 20 20 Depth Height Width 1000 1635 375 1000 1635 500 1000/1155 1635 750 1000 1885 375 1000 1885 500 1000/1155 1885 750 1340 1885 800 Degree of Protection, enclosure IP2XC IP2XC IP2XC Degree of Protection, Partitions IP2X IP2X IP2X Ambient Temperature - Maximum Value - Maximum Value of 24 h-mean - Minimum Value ( C) + 40 + 35-5 3) + 40 + 35-5 3) + 40 + 35-5 3) Altitude above sea level (m) 1000 2) 1000 2) 1000 (mm) (mm) (mm) Sectionalising cubicle with fuse Sectionalising breaker cubicle Sectionalising Withrawable breaker cubicle Sectionalising metering cubicle with disconnector Sectionalising metering cubicle Bus metering cubicle Universal metering cubicle Voltage indicators Current transformers Voltage transformers Surge arresters Cable current transformers Possibility to add earthing switch Vt's instead of cable connection 1) Higher Values in accordance with national standards on request. 2) Higher altitudes in request. 3) Lower ambient temperature on request. 4) 1250 A= CBW, SBW, BRC, DBC

Medium Voltage Panel 45 Type Withdrawable Unisafe Design Image

47 Unisafe Medium Voltage Switchgear up to 24 KV > > Metal - clad - air - insulated switchgear > > Suitable for medium voltage primary distribution > > Complete with mechanical safty interlocks > > High performance switchgear that meets highest requirments > > Safety shutters & bushings between CB, busbar & cable compartments > > Factory- tested for indoor installations > > Guaranteed arc - proof units & compartments > > Compartments segregated by metallic partitions > > Front access for maintenance and service operations > > LV compartment for control, protection and metering instruments Panel Compartments: > > Main busbars > > Feeder > > Circuit breaker > > Instruments > > Auxillary circuit wiring duct > > Withdrawable voltage transformers (optional) > > Gas duct

Standards The switchboard and its components comply with the following international and European standards: IEC Switchboard 60694 6069 Circuit breakers 60056 SF6 gas 60376 Earthing switches 60129 Contactors 60470 Switch disconnectors 60256-1 Fuses 60282-1 Technical Date: 49 Switchgear Up to 12 kv 17.5 kv 24 kv Type of construction Metal-clad Metal-clad Metal-clad Rated insulation voltage KV 12 17.5 24 Test voltage at power frequency KV(1min) 28 38 50 Impulse withstand voltage KV 75 95 125 Rated frequency Hz 50-60 50-60 50-60 Rated short-time withstand current Paek current Rated short-time withstand current Paek current Internal arc withstand current KA 1s KA KA 3s KA KA 1s KA 0.5 s 50 125 40 100 40 50 50 125 40 100 40 50 31.5 63 25 63 25 - Main busbar rated current A 4000 4000 2500 Ambient Conditions Rated current of the branch connections Rated current of the branch connection A 630 1250 1600 2000 2500 3150 A 3600 4000 630 1250 1600 2000 2500 3150 3600 4000 630 1250 1600 2000 - - 2500 - The switchboard ratings are guaranteed under the following ambie: Overall dimensions of basic cubicle H(mm) W(mm) D(mm) 2160/2495 600/750/1000 1550/2000 2160/2495 600/750/1000 1550/2000 2160/2600 750/1000 1900/2300 Minimum ambient temperature Maximum ambient temperature - 5 c + 40 c Maximum relative humidity 95% Maximum altitude 100 m a. s. l. In presence of unpolluted and not corrosive atmospher

51 www.persiantajhiz.com 50 Prefabricated Substation Persian Tajhiz Niroo Engineering Co.

Prefabricated Compact Substation 53 General Features: Advantages > > Non-walk-in substations > > Heat Run Tested to class 10K of IEC 61330 > > Specially designed sand traps > > Contains three compartments which are totally separated by metal sheets > > IP43 for the LV & MV compartments, IP23 for transformer compartment > > Flexibility in selecting the required LV & MV equipment > > Possibility to add one or two access doors for the transformer compartment > > Completely bolted housing made of galvanized plates with electrostatic powder coating > > Double roof with air insulation > > Integrated chassis with hot galvanized plated coating > > Easy lifting procedure via Balance lever > > Doors have a three-point locking system and mechanical door stop > > Integrated earthing system > > Possibility to install a roof with two slopes in outdoor position > > Possibility to install a flat roof in indoor position > > Providing oil-drain tank > > Transformercompartment equipped with foldable rail > > Non Rusty hinge > > Electrostatic powder painting > > Designed according to IEC standard > > Developed according to ISO 9001 standard > > Minimum area for installation > > Minimising installation time > > Easy utilization > > Quick power supply > > Compatible with urban adjustment > > High safety standard > > Natural ventilation > > Long lasting Substation compartments index > > Double roof with air insulation > > Mechanical Door stop > > Non rusty hinges > > Sand Trap > > Moving eye > > Integrated welded chassis with hot galvanised coating > > 3-point lock system

Tecnical data 55 Rated primary voltage 50 HZ Low voltage compartments components index > > Oil inspection window of transformer > > Telescopic ladder > > The hatchway to underground > > Low voltage panel > > First aid > > Fire extinguisher Rated secondary voltage 24 KV Transformer type Dry oil Substation type Non - Walk - in Galvanised plates Material of body galvanised plates Plate thickness 2 mm Electrostatic powder Painting type electrostatic powder coating Mechanical impulse withstand 20 J International protection IP 43 Medium voltage compartments components index Heat run test Ventilation type Internal lighting 10 K Natural separate micro switch for each door > > Fault indicator > > Switch disconnector cubicle type uniswitch > > Circuit breaker cubicle or fusible switch disconnector type uniswitch Connections type bolted Earthing system integrated Maximum ambient temperature + 45 C Relative humidity 50% Earthquake acceleration Altitude above sea level Maximum wind speed Installation position 0.3 g 1500 m 30 m/s Outdoor / Indoor Transformer compartments components index > > MV cable > > MV cable clamp > > Foldable rail for transformer compartment > > Latticed sheet for oil drain > > Transformer Standards IEC 62271-202 IEC 60298 IEC 602265-1 IEC 60420 IEC 60694 IEC 60282-1 IEC 60076 IEC 60947-1 HV/ LV Prefabricated Substations Metal enclosed switchgear HV Switches HV alternating current fuse switch combinations Common clauses for HV switchgear standards HRC fuse links Power Transformers LV Switchgear

3 3 L 57 L 24 KV, 630A 1000 1125 MV LV 24 KV, 630A TR W H.1 SDC H.2 SDC H.3 SDF TR WALK-IN MAN HOLE H.1 SDC H.2 SDC H.3 SDF W LV 1125 MV 1000 MAN HOLE 1 Access (Type A) Rating (kva) L W H 50-250 3500 1600 2300 315-500 4100 2000 2480 630-800 4400 2200 2720 2 Access (Type A) Rating (kva) L W H 50-250 2500 2500 2300 315-500 2700 2700 2480 630-800 3000 3000 2720 L L 24 KV, 630A 1125 LV 24 KV, 630A MAN HOLE LV H.1 SDC H.2 SDC H.3 SDF 1000 MV TR WALK-IN MAN HOLE W H.1 SDC H.2 SDC H.3 SDF 1000 MV TR W 1125 1 Access (Type B) Rating (kva) L W H 50-250 4200 1300 2300 315-500 4800 1500 2480 630-800 5000 1700 2720 2 Access (Type B) Rating (kva) L W H 50-250 3000 1900 2300 315-500 3500 2000 2480 630-800 3800 2200 2720 L L H.1 SDC 24 KV, 630A H.2 SDC H.3 SDF 1125 1000 MV TR MAN HOLE LV W H.1 SDC 24 KV, 630A H.2 SDC H.3 SBC H.4 UMC W TR LV MV 2250 MAN HOLE 3 Access Rating (kva) L W H 50-250 2950 1800 2300 315-500 3400 2000 2480 2 Access (Type C) Rating (kva) L W H 630-800 4000 2200 2720 1000 3800 2400 2920 630-800 3500 2200 2720 Demention can be changed by request.

59 www.persiantajhiz.com 60 PadMounted Substation Persian Tajhiz Niroo Engineering Co.

61 Half Oil Pad Mounted Substation General features: > > Two sliding doors which give access to MV bushings,oil-drain & pressure relief valves of transform > > Dividing transformer, MV panel & LV panel compartment > > Doors equipped with a three-point lock system and mechanical door stop > > Possibility to install a flat roof in indoor position > > Double roof with air insulation > > Possibility to install a roof with two slopes in outdoor position > > Separate access doors for LV & MV compartments > > Flexibility in selecting the required LV & MV equipment > > Easy lifting procedure via Balance lever > > Integrated chassis with hot galvanized plated coating > > Electrostatic powder painting > > Providing oil-drain tank > > Integrated earthing system > > IP53 > > Heat Run Tested to class 0 > > Designed according to IEC standard > > Developed according to ISO 9001-standard Compartments: > > Double roof with air insulation > > Mechanical door stop > > Non-rusty hinge > > LV compartments door > > MV compartments door > > Access door to oil-drain & pressure relief valves of transformer > > Access door to bushings > > Transformer > > Integrated chassis with hot galvanized plated coating > > Lifting eye

63 Applications: Advantages: As a result of having IP54, there is the possibility of installation the Half-Oil Pad Mounted substation in the worst weather conditions. Mounting transformer outside of the MV & LV panel s enclosure makes the operation temperature almost equal to the ambient temperature which results in increasing the life time of both used insulators & the substation. The Half-Oil pad mounted substation is equipped with plug-in transformer type slide bushing and the MV compartment is equipped with GIS compact panel. The used technology of this substation results in manufacturing it in smaller dimensions. The special feature of Half-Oil pad mounted substation in comparison with Full-Oil pad mounted substation is the separation of the transformer from MV & LV panels as well as possibility to replace all the components. (Half-Oil Pad Mounted substation can be used up to 800 KVA) > > Minimum area for installation > > Natural ventilation > > Quick & Easy installation > > Possibility to replace all components > > Quick & Easy utilization > > High safety standard > > Compatible with urban adjustment > > Long lasting

65 Half Oil Pad Mounted Substation TR Special features: One of the special features of Half-Oil Pad Mounted in comparison the with full-oil Pad Mounted is the separation of the transformer from the MV panel as well as switching outside of the transformer oil which increases the life time of it, also it makes it possible to be installed in the Main Ring of the Distributing Network. In addition to the above, the modular design has been made in a way that replacement of all the components especially in increasing or decreasing the capacity of the transformer is possible. In comparison with prefabricated enclusure the dimensions are visibly more compressed which results in less space being used for installation As a result of both mounting the transformer out door and heat run test class 0 the life time and efficiency is increased. MV LV H MV LV W L Overall Dimension Rating (KVA) 200 250 315 400-500 - 630 800 (L W H) mm 1750 1950 1900 1750 2040 1900 1750 2130 1900 1750 2340 1900 1750 2470 1900

Certificates of Rejistration Test Reports 67