LIST OF ASSETS FOR DISTRIBUTION TRANSFORMERS PROPOSED FOR TENDER SALE SR. NO DESCRIPTION QTY PICTURE ABB CORE WRAPPER To make Wound cores for transformers Range 5 KVA to 750 KVA. The ABB Core Wrapping Machine is designed to wrap electrical grade core steel into a torroid shaped core. Using different sized formingmandrels and target stack depths, the size of the core can be adjusted to suit electrical design requirements. The system consists of the production machine and a PC controller. The PC controller stores and transmits the core data to the production machine for each core. An integrated weigh station monitors the machines output. The core weights are then displayed on the machine via a line chart so the operator can see at a glance, the output quality. The production machine receives material from a core steel roll mounted on an electronically controlled dereeler. The dereeler dispenses core steel from the roll to maintain a slack loop during the production cycle. This slack loop is controlled via ultra sonics so as not to damage the material as it is consumed by the machine. The machine is also equipped with a hydraulic unloading device to facilitate the moving of heavy cores from the machine to a conveyor or other suitable distribution system. TECHNICAL DATA Make TRANCO Model SD036 Min mandrel size - 250 mm perimeter CRGO steel width 80 mm to 200 mm. CRGO steel thickness 0.23 mm to 0.27 mm Page 4
2 CORE FORMER PRESS Press used for forming the round core loop into rectangular shape. To remain shape of pressed core loop tie by MS strap, L & W clamps. Transformers Range 5 KVA to 750 KVA. Technical Data Detail to be measured opening of Jaws Maximum opening - 490 mm Minimum Opening - 70 mm 3 Annealing Oven- 4 Ton ( YOM 2005) The function of the furnace is to anneal transformer cores, preparing them for the lacing process. The transformer cores are loaded onto racks on a mobile carriage. This carriage is then moved under the furnace bell, which is in turn lowered over the load. The bell is purged of Oxygen with a Nitrogen gas ensuring that core rusting is kept to a minimum. The load is then heated to 800 o C and held there for 5 hours. After the soak has finished, the load is cooled. To ensure that no oxygen enters the bell at elevated temperatures, a heat exchanger system is used to cool the bell. An internal ducting system circulated the atmosphere from the top of the bell, through a heat exchanger, back around to the bottom of the bell. A cooling fan supplies a steady stream of ambient air of the external surface of the heat exchanger to facilitate the cooling process. Once the load cools to below 90 o C, the cycle is completed and the bell rises. The load can then be removed and the next cycle can then begin. A digital chart recorder is used to record every cycle for future reference. The furnace is a fully automatic machine, requiring no operator intervention to complete a cycle. The system will automatically report any errors inhibiting the completion of a cycle and will resume the cycle once the appropriate action Page 2 4
has been taken and the start button is pressed. The system will automatically resume from a loss of power (As long as the UPS has not failed) so as to limit the loss of production time while waiting for operator input. Technical Data Bogie Hearth bell type Annealing Furnace for CRGO t/r core - Capacity - 4 Tonne Sr no : PC:JC : 4660 :2K5 Type of Furnace : Bogie Heartbell type Application : Annealing CRGO core material Batch Capacity - 4 Tonnes 4 Furnace Trays per batch Size of Tray - 500 mm x 700 mm Material of constructionof Tray - SS 30 Useful chamber size (mm): 900 L x 700 B x 200 H Maximum rated temp : 850 Degree cen Heater rating : 200 Kw Insulation : 75mm thick RT Grade Ceramic Fiber block having density 60 kg/m3 + 25 mm thick RT grade ceramic fiber blanket Supply - 3 phase 45 volts 50 Hz Bell up-down through 2 nos. of lead screw with geared motor for independent drive Bogie operation - electromechanical Heating Elements - 2 nos. Silicon Carbide rods Furnace Atmosphere - Nitrogen Power control - Thyristors Temperature control - by PLC & HMI through eneterd cycle times & temperature ranges Temperature recorder - Yokogawa Control panel - separate floor mounting type 4 ANNEALING FURNACE 2T Description same as above. Technical Data Annealing Furnace for Core 2 Tonne capacity. to anneal transformer cores ABB Australia make Load -250 Amps capacity of MCCB 6 nos. of silicon Carbide Heaters Thyrister controlled heating system Koyo PLC Page 3 4
Nitrogen Generator - (YOM 2004) 5 PSA Nitrogen Gas generator Plant. ( Pressure swing Absorption - PSA ) Details from manual. Model no : MS-5-99.9 Capacity - 5 Nm3 / hr Purity - 99.9 % Oxygen content - 0. % Outlet pre : 5.5 kg/cm2 Temp at outlet- ambient Power consumption - 0.5 KW 3 Phase supply - 45 Volts Input Air at minimum 7 kg/cm2 required E-5 model compressor to be connected in line with this nitrogen plant. no. of 5 M3 capacity storage tank included in asset for N2 buffer storage. Nitrogen Generation Plant 2 (YOM 2005) 6. PSA Nitrogen Gas generator Plant. ( Pressure swing Absorption - PSA ) Details from manual. Model no : MS-5-99.9 Capacity - 50 Nm3 / hr Purity - 99.9 % Oxygen content - 0. % Outlet pre : 5.5 kg/cm2 Temp at outlet- ambient Power consumption - KW 3 Phase supply - 45 Volts Input Air at minimum 7 kg/cm2 required no. of 5 M3 capacity storage tank included in asset for N2 buffer storage. Page 4 4
7 LV - Rectangular + Foil Winding Combi Machine ( SYNTHESIS ) YOM : 2004 Page 5 4
8 HV WINDER (DOUBLE COIL) - RAINBOW make Double coil HV winding machine Operating system - DOS Based Profibus controlled Suitable for Transformer rating 5KVA 00KVA No 9 LV WINDING MACHINE & TENSIONER FOR LV WINDING MACHINE YOM : 2009 General Specifications Supply Voltage 440 Volts + 0%, 50Hz AC, 3 phase with neutral 230Volts + 5%, 50Hz phase for controller Ambient Temperature 0 degree to 50 degree Celsius Ambient humidity 98%RH, No condensation Power Consumption 00 W Excludes the mechanical unit power consumption) Dimension 900X300X500 Technical Specifications Control System 6 bit Microprocessor controlled Data storage 95 different Programs with individual 9 sections Main Motor 3.0 HP, AC Motor. Traverse Motor Servo Motor Speed Control Speed control knob Wire pitch Upto 5.00 Winding Width 500.0 mm Page 6 4
0 HV Winding Machine & Tensioner for HV Winding Machine YOM 2009 General Information Supply Voltage 440 Volts + 0%, 50Hz AC, 3 phase with neutral 230Volts + 5%, 50Hz phase for controller Ambient Temperature 0 degree to 50 degree Celsius Ambient humidity 98%RH, No condensation Power Consumption 00 W Excludes the mechanical unit power consumption) Dimension 300X560X400 Technical Specifications Control System 6 bit Microprocessor controlled Data storage 95 different Programs with individual 9 sections Main Motor 3.0 HP, AC Motor. Traverse Motor Servo Motor Speed Control Speed control knob Wire pitch Upto 5.00 Winding Width 300.0 mm or 500.0 mm optional I2R COIL PRESS The process requires that the central cavity of a coil be blocked to form the correct size hole for the core and, for simultaneously curing the HV winding, the blocking must be adapted to act as a radiating surface capable of withstanding temperatures up to 80 C (360 F). The primary purpose of the compression bonding machine is three-fold; firstly, to compress the long-wound sides of the coil to achieve a predetermined dimension (referred to in this manual as CSD or coil smaller dimension); secondly, to bring all the layers of wire or foil and paper close enough together to allow the semi-cured epoxy dots coating the interlayer insulation paper to melt and fuse; and thirdly, to heat the epoxy dots to a high enough temperature and for long enough time to cure. An important secondary benefit of this compression bonding machine is to purge the coil of No Page 7 4
2 excess moisture contained within the insulation paper. Curing is achieved by injecting the HV side of the coils with a DC current causing the windings themselves to heat up, and in turn heating the paper within the windings. The machine is controlled via a distributed PLC I/O sub system arrangement in conjunction with a dedicated PC controller. The industrial PC communicates to several PLC bases strategically located around the press and power cabinet via a small network hub and standard network cabling. Pressed the coils - Transformer range 5 KVA TO 500 KVA Heat up the coils - 70 degree C. Lacing Table - Manual YOM 2008 Suitable for Transformer range 00kva to 750 Kva 3 Hydraulic Tilting Lacing / Core Assembly Table YOM : 202 Suitable for Transformer range 00kva to 750 Kva No Page 8 4
4 5 Lacing Tables Qty - 2 NOS. YOM 2007 For core & coil assembly Lacing operation Transformer range 5 KVA to 35 KVA Pneumatic operated ( UP/down - For/Rev) Lacing Table. sliding plate opening Minimum : 00 mm ( sliding plate opening Maximum : 420 mm 3 nos. of jaw/tables with Sliding base for height & width adjustment of coils with height of lift about 50 mm Space inside table availabel for coil - 040 x 450 mm Individual small Lift of adjuctable jaw table - 20 mm Wire Striping Machine YOM : 2009 HV PICC Insulation remover Hydraulic To remove paper covering of PICC ( paper insulated copper/alluminium conductor ) wire size up to 0 mm 2 Nos 6 Crimping tool YOM : 2008 Make : Mars For crimping 0 SQ MM TO 300 SQMM Page 9 4
7 Twin batch Oven YOM : 2008 Air drying oven with auto exhaust system, For heating CCA up to 750 Kva 35 degree C. ( 2 No) 8 000 LPH Capacity Oil Filteration plant with Raw Oil Storage tank ( ROST of 4 KL Capacity ) Processes oil Storage Tank( POST of 2000ltr capcacity) BDV after filteration - > 60 kv water PPM - < 0 ppm Heaters for POST : 48 KW Rotary oil sealed Vacuum pump press Paper filters & Cartridge filters Page 0 4
9 Oil Filling & Evacuation Unit, YOM - 2003 Oil Filling Station with Evacuation system. System not working at present. Up gradation required for same. 20 2 nos. of Oil Filling Station with common control panel. System of Evacuation & Oil Filling. E2-M80 model 2 nos. of Vacuum Pumps. Oil Feeding line input required for this system. Pneumatic+electric operated valves for controls. Adjustable process times in touch panel. ABB CP504 PLC+HMI Page 4
2 Oil Storage tank Horizontal Mounting YOM : 2004 Tank Length - 9000 mm Tank Dia - 2750 mm Load bearing capacity for foundation - 60 Tonnes ( including oil of 45 Tonnes) 22 Core Building Table With Hydraulic Lifting Capacity : Page 2 4
23 MS Roller Conveyer Suitable for Moving Winding, Core loops, CCA and Transformer up to 750KVA capacity. 00 Meter 24 Drum Lifter and Tilter For Lifting Transformer Oil Drum and tilting it for changing position. No 25 Batch Oven Cages for putting active part in Oven 2 Nos Page 3 4
26 COIL UPENDER 90 Degree Tilting platform. 3 Phase, 440 VAC Supply 27 Pre core loss set up To measure core losses of the CRGO core loop before CCA assembly 28 Flow well make Oil Pump Type - 30 FM size : 50 x 38 Supply - 45 volts / 3 phase 50 Hz power - 3 HP. Insulation class - F Duty - 2400 LPH @ 5 Mtrs Used to Load Oil ( from Oil Tanker to the storage tank & Unload Oil from storage tank to shop floor ) 2 Nos Page 4 4