- Transformers[6]
- Power Distribution Equipment[6]
- Other Electrical Equipment[1]
- Other Switches[2]
- Circuit Breakers[6]
- Ice Machine[6]
- Arc Welders[6]
- Terminals[5]
- Clamps[2]
- Connectors[1]
- Power Accessories[3]
- Contact Person : Mr. Chueng Brian
- Company Name : Shanghai First Electrical Group Co., Ltd.
- Tel : 86-21-64325567
- Fax : 86-21-64325822
- Address : Shanghai,Shanghai,No.66 Caobao Road, Xuhui District & No.928 Jinyu Hwy Songjiang District
- Country/Region : China
- Zip : 201600
66 110 220kV Oil-immersed Power Transformer
REFERENCES
ISO 1461: Hot dip galvanized coatings on fabricated iron and steel articles – Specifications and test methods.
IEC 60076: Power transformers.
IEC 60044: Instrument transformers.
IEC 60296: Specification for unused mineral insulating oil for transformers and switchgear.
IEC 60354: Loading guide for oil – immersed power transformers.
IEC 60214: Tap-changers - Part 1: Performance requirements and test methods, Part 2: Application guide.
IEC 60512: Connectors for electronic equipment.
Performance
| 66kV Two-Winding Power Transformer With NVTC/OLTC | |||||||
| Rated Capacity (kVA) | Rated Voltage (kV) | Vector Group | Losses (W) | Impedance Voltage (%) | |||
| HV | Tapping Range | LV | No load | On load | |||
| 630 | 63 66 69 | ±5% | 6.3 6.6 10.5 11 | Yd11 | 1360 | 7560 | 8.0 |
| 800 | 1620 | 8830 | |||||
| 1000 | 1920 | 10440 | |||||
| 1250 | 2260 | 12340 | |||||
| 1600 | 2720 | 14850 | |||||
| 2000 | 3200 | 17550 | |||||
| 2500 | 3760 | 20700 | |||||
| 3150 | YNd11 | 4480 | 24300 | ||||
| 4000 | 5280 | 28800 | |||||
| 5000 | 6240 | 32400 | |||||
| 6300 | ±2×2.5% | 8000 | 36000 | 9.0 | |||
| 8000 | 9600 | 42750 | |||||
| 10000 | 11360 | 50400 | |||||
| 12500 | 13360 | 59850 | |||||
| 16000 | 16080 | 73530 | |||||
| 20000 | 19040 | 89100 | |||||
| 25000 | 22480 | 105300 | |||||
| 31500 | 26720 | 126900 | |||||
| 40000 | 32000 | 148950 | |||||
| 50000 | 37760 | 184500 | |||||
| 63000 | 44880 | 222300 | |||||
| 110kV Two-Winding Power Transformer With NVTC/OLTC | |||||||
Rated Capacity (kVA) | Rated Voltage (kV) | Vector Group | Losses (W) | Impedance Voltage (%) | |||
| HV | Tapping Range | LV | No load | On load | |||
| 6300 | 110 121 | ±2×2.5% | 6.3 6.6 10.5 11 | YNd11 | 8000 | 36900 | 10.5 |
| 8000 | 9600 | 45000 | |||||
| 10000 | 11200 | 53100 | |||||
| 12500 | 13200 | 63000 | |||||
| 16000 | 16000 | 77400 | |||||
| 20000 | 19000 | 93600 | |||||
| 25000 | 22400 | 110700 | |||||
| 31500 | 26700 | 133200 | |||||
| 40000 | 31800 | 156600 | |||||
| 50000 | 37600 | 194400 | |||||
| 63000 | 44600 | 234000 | |||||
| 110kV Three-Winding Power Transformer With NVTC/OLTC | ||||||||
Rated Capacity (kVA) | Rated Voltage (kV) | Vector Group | Losses (W) | Impedance Voltage (%) | ||||
| HV | Tapping Range | LV | No load | On load | Step Up | Step Down | ||
| 6300 | 110 ±2×2.5% 121 ±2×2.5% | 35 38.5 ±2×2.5% | 6.3 6.6 10.5 11 | YNyn0d11 | 9600 | 47700 | HV-MV 17-18 HV-LV 10.5 MV-LV 6.5 | HV-MV 10.5 HV-LV 17-18 MV-LV 6.5 |
| 8000 | 11500 | 56700 | ||||||
| 10000 | 13600 | 66600 | ||||||
| 12500 | 16000 | 78300 | ||||||
| 16000 | 19300 | 95400 | ||||||
| 20000 | 22800 | 112500 | ||||||
| 25000 | 27000 | 133200 | ||||||
| 31500 | 32000 | 157500 | ||||||
| 40000 | 38200 | 189000 | ||||||
| 50000 | 45200 | 225000 | ||||||
| 63000 | 53600 | 270000 | ||||||
| 220kV Two-Winding Power Transformer With NVTC/OLTC | ||||||
Rated Capacity (kVA) | Rated Voltage (kV) | Vector Group | Losses (W) | Impedance Voltage (%) | ||
| HV | LV | No load | On load | |||
| 31500 | 220 ±2×2.5% | 6.3 | YNd11 | 29000 | 135000 | 12-14 |
| 40000 | 6.6 | 35000 | 158000 | |||
| 50000 | 10.5 | 41000 | 189000 | |||
| 63000 | 11 | 49000 | 221000 | |||
| 90000 | 10.5 | 65000 | 288000 | |||
| 120000 | 13.8 11 | 80000 | 347000 | |||
| 150000 | 11 | 96000 | 405000 | |||
| 180000 | 13.8 | 109000 | 459000 | |||
| 240000 | 15.75 | 136000 | 567000 | |||
| 300000 | 15.75 | 160000 | 675000 | |||
| 360000 | 18 | 184000 | 774000 | |||
| 220kV Three-Winding Power Transformer With NVTC/OLTC | |||||||||
Rated Capacity (kVA) | Rated Voltage (kV) | Vector Group | Losses (W) | Impedance Voltage (%) | Capacity Arrange (%) | ||||
| HV | MV | LV | No load | On load | Step Up | Step Down | |||
| 31500 | 220 ±2×2.5% | 69 121 | 6.3 6.6 | YNyn0d11 | 34000 | 162000 | HV-MV 22-24 HV-LV 12-14 MV-LV 7-9 | HV-MV 12-14 HV-LV 22-24 MV-LV 7-9 | 100/100/100 100/50/100 100/100/50 |
| 40000 | 10.5 11 | 40000 | 189000 | ||||||
| 50000 | 35 | 48000 | 225000 | ||||||
| 63000 | 38.5 | 56000 | 261000 | ||||||
| 90000 | 10.5 11 13.8 | 73000 | 351000 | ||||||
| 120000 | 35 38.5 | 90000 | 432000 | ||||||
| 150000 | 11 13.8 | 106000 | 513000 | ||||||
| 180000 | 15.75 35 | 121000 | 585000 | ||||||
| 240000 | 38.5 | 149000 | 720000 | ||||||
ROUTINE TEST to IEC 60076 (to be done during acceptance testing at factory)
• Measurement of winding resistance
• Ratio test
• Vector group
• Separate source voltage withstand test
• Induced over-voltage
• Insulation resistance
• Oil leakage test on fully assembled transformer for 12 hours
• Measurement of impedance voltage
• Magnetic balance
• Measurement of no-load loss and current
• Measurement of load loss (at normal & extreme taps)
• Tests on on-load tap-changer
• Tests on on-load tap-changer remote control panel
• Efficiency at 50%, 75%, 100% loading at unity p.f and rated terminal voltage (Corrected to 75C)
• Lightning impulse withstand test
Type Tests to IEC 60076 (to be done during acceptance testing at factory)
• Temperature rise test – To be performed on one unit during acceptance testing.
Lightning Impulse Withstand Test is already listed under Routine Tests as per IEC 60076.
Test Facility
66 110 220kV Oil-immersed Power Transformer
