電力用変圧器 (PDF：10.5MB)
Contents
1. SUPPORTS Interior supports such as core clamper coil support and wiring support are clamped firmly to withstand shock transportation and operation vibration and during The core is securely clamped by upper and lower core clamper to reduce audible noise and the windings are fastened by clamping ring to withstand electro magnetic force caused by 3 KEIKIN SU RR Ic EA E RLA INSULATION AND STABILIZATION Conductors are insulated with high quality kraft paper and pressboard which have sufficient dielectric and mechanical strength to withstand impulse voltage and short circuit Stabilization treatment is carried out for large cap2. ASSEMBLY AT SITE Large size transformers are disassembled and shipped after factory tests because of transporting restriction So skilled supervisor and workers are dispatched to site and the transformers are reassembled and tested to keep enough dielectric and mechanical strength Assembly At Site e 509882 Hi D IsE Jbdz 7 NIU e PRODUCTS by SHIHEN TRANSFORMER amp REACTOR POWER TRANSFORMER DISTRIBUTION TRANSFORMER MARINE TRANSFORMER EPOXY MOLD TRANSFORMER DRY TYPE TRANSFORMER REACTOR e SWITCHGEAR amp CONTROL PANEL METAL CLAD SWITCHGEAR STANDARD TYPE SWITCHGEAR CUBICLE OPEN TYPE SWITCHGEAR CONTROL PANEL MOTOR CONTROL CENTER POWER CENTER DISTRIBUTION BOARD e OTHERS ELECTRIC WATER HEATER FLUORESCENT LAMP BALLAST SWITC
3. DRYING OIL FILLING AND TANKING After wiring core and coil are dried in automatic controlled drying chamber to remove moisture in the insulating material and to increase their dielectric strength against impulse voltage After above drying the transformers are throughly vacuum dried and are filled with high quality insulating oil in vacuum drying and oil filling chamber Insulating oil is degassed and filtered completely before oil filling Vacuum Drying and Oil Filling Chamber 6 TANK AND RADIATOR Tanks are made of rolled steel which has sufficient strength to withstand heavy pressure caused by internal
4. HRO 2 3 d 2 4 2 1 600kV 4
5. POWER TRANSFORMER SrUUuMs EFJ SHIHEN TECHNICAL Corporation 150kV 50MVA SHIHEN has been manufacturing reliable power transformers under severe quality control and high technical skills and SHIHEN has a good reputation as excellent transformer manufacturer in Japan We are manufacturing all kinds of transformers up to 150kV 50MVA and each transformer is strictly inspected and tested before shipment SHIHEN supplies high quality transformers not only to domestic power company but also many overseas countries Our motto is The highest quality is our first priority and high quality products bring prosperity 110 33 6 6kV 40MVA Power Transformer Three Phase 110 33 6 6kV 40MVA Oil Immersed Self Cooled Type Um On Load Tap Changing Transformer On L
6. INTERLEAVED WINDING High Series Capacitance Winding Since high voltage winding must withstand high voltage impulse test interleaved winding is usually used to uniform surge distribution in winding This winding is usually adopted for rated voltage 60V winding or above DISC WINDING Disc winding is generally suitable for midium voltage and midium current Both radial and axial oil ducts are provided between discs and between the winding and the insulating cylinder as well as interleaved winding When multiple conductors are used transportation is carried out for each disc to reduce eddy current HELICAL WINDING Helical winding is used for heavy current and low voltage winding Each conductor is stacked in the radical direction and connected together at both ends of winding Helical winding has the same number of transposition as parallel conductors CYLINDRICAL WINDING Cylindrical winding has been generally used for medium capacity transformer however recently this winding is used large capacity transformer because of simple construction The winding is of several layers and high quality interlayer insulation and vertical oil ducts are provided in each winding Stabilization Treatment 4
7. 1 Pressure Relief Device with Alarm Contact Pressure Vacuum Gauge Nitrogen gas Filling valve 6 Bushing CT Conservator Open Type or Diaphragm Type ONO O Bank Number Plate Conservator Connecting Valve Cable terminating Box or Duct Flange Cooling Fan Wheel a Alarm Contacts are normally open O EO Ladder Mark shows standard accessory APPROXIMATE DIMENSIONS AND WEIGHT OF POWER TRANSFORMER p Gre ay 0n LN CI DI hh Approximate Dimensions m CAPACITY VOLTAGE Outdoor Bushing Type all A kV W ig No EN 11 22 2 2 8 5A 1 4 1 28 2 9 4 8 5000 33 3 4 2 9 2 5 0 2 9 30 4 16 66 77 45 3 0 32 2 Uo 3 0 32 4 18 11 22 2 7 3 0 32 1 49 3 0 3 0 4 18 1500 33 od 3 0 32 2 5 4 3 0 3 1 4 19 66 71 4 7 3 1 3 2 2 55 3 1 32 4 29 11 22 2
8. No voltage Tap changer Drain Valve with sampling Plug FBZ Lower Filter Valve ZAF Top Filter Valve Radiator Valve Bottom Open type conservator Dehydrating Breather Auxiliary wiring terminal Box Earthing Terminal 60mm Lifting Lug Jacking Boss cH I CAPACITY 15MVA Above 15MVA Teen Foundation Bolt M 15MVA 15MVA OER Our standard oil preservation system is as follows 5 5MVA Air sealed Tank Type I5MVA Conservator Type Above 15MVA Mark shows standard accessory OPTIONAL ACCESSORIES OF POWER TRANSFORMER Optional Accessory Tre Dial type Oil Level Gauge with Alarm Contact Alcohol Thermometer Nitrogen Gas sealed Tank Conservator Type Resistance bulb Winding Thermometer Thermal Image Sudden Pressure Relay O
9. 9 3 1 d 1 5 1 41 3 2 4 22 10000 33 3 8 3 1 33 2 54 3 1 3 2 4 23 66 77 5 0 82 3d 2 5 8 32 38 4 27 11 22 34 32 3 4 1 54 3 2 32 4 29 15000 Jd 4 2 32 3 4 2 5 9 d 92 4 30 66 77 5 2 3 4 3 4 2 6 0 3 4 3 4 4 34 11 22 4 4 45 4 6 9 5 6 45 4 6 9 35 20000 33 4 5 45 46 3 6 0 45 4 6 5 36 66 77 4 7 48 49 d 6 8 48 48 5 40 11 27 4 6 48 5 0 58 48 5 0 5 45 30000 dd 4 7 48 5 0 3 6 2 4 8 50 5 46 66 77 5 1 52 52 3 6 6 52 5 0 5 50 Cable Box Type 33kV Below 33kV Air Filled Type 66 77kV 66 77kV Oil Filled Type CONSTRUCTION OF POWER TRANSFORMER 1 PN MR 45 CORE The cold rolled grain oriented silicon steel strips are used as core material and mitre joints are adopted to minimize no load loss no load current and audible noise The silicon steels are cut by
10. ADOTSU CHO KAGAWA JAPAN TEL 0877 33 2525 33 2727 FAX 0877 33 253e 105 0013 2 7 17 7 EAGLE HAMAMATSU CHO 7F 2 7 17 HAMAMATSU CHO MINATO KU TOKYO105 0013 TEL 03 3578 1641 FAX 03 3578 1645 CATNO A16 30730
11. HING POWER SUPPLY DC HIGH VOLTAGE POWER SUPPLY UNINTERRUPTING POWER SUPPLY PRECISION DIE _ ELS SEH S Toe bs M SHIHEN TECHNICAL Corporation HEAD OFFIOE TOKYO BRANCH OFFICE http www shihen co jp 5 138975 764 8507 g 1 97 T
12. acity transformer in order to manufacture solid and stable windings and prevent shrinkage of insulation paper during operation Stabilization treatment consists of press and drying and oil pressure system is used to give uniform force to winding in the drying chamber Wiring short circuit Leads from winding to bushing or tapchanger are solidly fixed to wood or hard pressboard supports These supports sufficient strength to withstand short circuit Core and coil are fixed on the bottom of tank and have mechanical the top of tank or cover not to move during transportation Cte UE 5 5
13. automatic core cutting machine and stacked on the core erecting platter each corner being carefully mitre jointed to make the best use of the properties of the core material Laminated core is erected together with the platter and tightened solidly Automatic Core Cutting Machine 2 ZER 3t d e HR MIT IHE 2 VA fH e i 6 WINDING Usually high voltage windings are placed outside and low voltage winding inside Concentric arrangement Conductors are insulated with kraft paper of high quality and are transposed to reduce stray loss for multiple conductors The voltage and current of winding vary on each MM transformer so several types of winding are Core Erecting Platter selected Interleaved Winding 2 2 6
14. fault Welded cover type is supplied as well as bolted one Oilimmersed selfcooled transformers are ES provided with panel type radiators which have Transformer Under Test very high mechanical strenghth and large cooling effects tank and radiators to be free from mill scale slag Shot blast or chemical treatment hydrochloric and rust Then under middle and top coats of acid and zinc phosphate treatment are applied to superior quality are applied T TERSANE IE idih RO ERR ii H BAA tE 1000kV 250kV 150kVA 12000kVA 4500 6000kVA ra UE JE s FA 240Hz 50kVA A2 A HR TOES TESTING The completely assembled transformers are tested and inspected strictly to check and confirm that the transformer completely meets customer s requirement and standard Major Testing Equipment Lightning Impulse voltage Generator 1000KV etc Testing Transformer 250kV 150kVA etc Capacitor 12000kVA Auxiliary Transformer 4500 6000kVA 1500kVA etc High Frequency Generator 240Hz 50kVA etc Gas chromatographic Analyzers Testing Equipment 8
15. oad Tap Changing Transformer 66 6 9kV 30MVA Three Phase 66 6 9kV 30MVA 66 6 9kV 20MVA Three Phase 66 6 9kV 20MVA 0il Immersed Self Cooled Oil Immersed Self Cooled Separate Radiator Type Reduced Sound Level Type 45 dB 66 6 9kV 10MVA Mobile Type Substation Three Phase 66 6 9kV 10MVA Oil Immersed Forced Oil Forced Air Cooled Type and Switchgear 66 6 9kV 9MVA HA BUS Three Single Phase Transformer Three sets of single phase transformer are assembled as one unit 66 6 9kV 9MVA Oil Immersed Self Cooled Type fg c E E 66 6 9kV 10MVA 45dB GIS Connected Transformer GIS SF6 Gas Insulated Switchgear Three Phase 66 6 9kV 10MVA Oil Immersed Self Cooled Reduced Sound Level Type 45 dB STANDARD ACCESSORIES OF POWER TRANSFORMER Standard Accessory 5 15MVA 5to 15MVA Dial Type Thermometer with Alarm Contact Bar Type Oil Level Gauge Pressure Relief Device Sudden Pressure Relay Buchholz Relay Rating Plate stainless steel
Download Pdf Manuals
Related Search