Power Transformer
Basic Info
Model No.: SFZ 120000/230/35KV
Product Description
Model NO.: SFZ 120000/230/35KV Phase: Three Cooling Method: Oil-immersed Type Transformer Test Certification: Kema Transformer Test Specification: IEC Standard HS Code: 8504231200 Application: Power, Electronic, Instrument, Rectifier Core: Core-type Transformer Winding Type: Two-winding Transformer Trademark: ville Origin: Ningbo Power Transformer
230-242kV on-load-tap-changing power transformer is made of high-quality silicon-steel sheets, and laminated by steps. It is advantageous in low loss, low noise, low voltage partial discharge and high anti short-circuit capacity. The dynamical and thermal stability of this transformer, of which the coils are winded by high-quality oxygen-free copper wire as well as used pre-compressing brackets processes and interior and exterior structure. The transformer tank used wave form shell, has very nice appearance, the core is with D shape yoke and 45 angle seaming. The core and oil box are well fixed and well protected on moving.
Three-phase dual winding oil immersed power transformer with OLTC
Type: SFZ-120000/230
Rated voltage: 230/34 kV
Rated capacity: 100000/120000kVA
Rated voltage ratio: 230± 8× 1.25%/34kV
Rated current: 301/2038A
Phase number: Three
Rated frequency: 50 Hz
Connection: Ynyn0(d11)
Voltage regulating method: Neutral point on-load Regulating
Short circuit impedance: 9.5%(10MVA)
Cooling mode: ONAN/ONAF
14 th. Insulation Level: A
15 th. Field strength between transformer winding turns is no more than 2kV/mm
16 th. Transformer loss (under 75) no-load current and efficiency
No-load Loss: 92 kW According to IEC standard
Load Loss: 356 kW According to IEC standard
No-load current: 0.3 % According to IEC standard
17 TH. Radio interference and corona
Under the Maximum phrase voltage, corona is not visible from outgoing terminal in the night of clear day at outdoor. Radio interference voltage is no more than 2500Uv
18 th. Overloading capability
Short-time overloading capability of transformer and overload running time are as fol low:
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230-242kV on-load-tap-changing power transformer is made of high-quality silicon-steel sheets, and laminated by steps. It is advantageous in low loss, low noise, low voltage partial discharge and high anti short-circuit capacity. The dynamical and thermal stability of this transformer, of which the coils are winded by high-quality oxygen-free copper wire as well as used pre-compressing brackets processes and interior and exterior structure. The transformer tank used wave form shell, has very nice appearance, the core is with D shape yoke and 45 angle seaming. The core and oil box are well fixed and well protected on moving.
Three-phase dual winding oil immersed power transformer with OLTC
Type: SFZ-120000/230
Rated voltage: 230/34 kV
Rated capacity: 100000/120000kVA
Rated voltage ratio: 230± 8× 1.25%/34kV
Rated current: 301/2038A
Phase number: Three
Rated frequency: 50 Hz
Connection: Ynyn0(d11)
Voltage regulating method: Neutral point on-load Regulating
Short circuit impedance: 9.5%(10MVA)
Cooling mode: ONAN/ONAF
| Lightning impulse withstand voltage(kV peak value) | 1minMain frequency withstand voltage (kV RMS) | ||
| Full wave | Chopped wave | ||
| High voltage side | 1050 | 1175 | 460 |
| Neutral point of high voltage | (1050) | ( 460 ) | |
| Low voltage side | 170 | 185 | 70 |
| Neutral point of low voltage | 170 | 70 | |
14 th. Insulation Level: A
15 th. Field strength between transformer winding turns is no more than 2kV/mm
16 th. Transformer loss (under 75) no-load current and efficiency
No-load Loss: 92 kW According to IEC standard
Load Loss: 356 kW According to IEC standard
No-load current: 0.3 % According to IEC standard
17 TH. Radio interference and corona
Under the Maximum phrase voltage, corona is not visible from outgoing terminal in the night of clear day at outdoor. Radio interference voltage is no more than 2500Uv
18 th. Overloading capability
Short-time overloading capability of transformer and overload running time are as fol low:
| Over current | 30 | 45 | 60 | 75 | 100 |
| Allowable running time min | 120 | 80 | 45 | 20 | 10 |
Product Categories : Power Transformer > Others Power Transformer
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