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750kv oil-immersed power transformer

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With the large hydropower, thermal power and nuclear power foundation construction, our country is increasing the demand for long distance, high-capacity, super high-voltage and ultra –high voltage power transmission. AC 750 KV power grid have commissioned on the end of 2005 years, reflecting that our country have joined ultra-high voltage electricity age. For studies for power transformer, we can independent research and development product now, which is quite competitive with abroad product, and no longer dependence on import. According to 750KV product technical characteristic, our company engineer worked on analyzing and research technical document for ultra-high voltage power, and made efforts to solve insulation construction , leakage magnetic field analysis and ability withstand short-circuit, compared different solution for two limbs parallel and serial connection, forced oil cooling and natural cooling, on-load coil voltage selection and voltage regulation coil structure, etc, as well as considered that transformer installation position, internal transportation condition, etc, making our product pass China Electricity Council Technical Identification. Our product has following characteristic: low loss, low noise, small volume, strong withstand short-circuit ability, no PD and overheating, etc, whose technical performance index have reached international advanced level.

ODFPS-500000/750Transformer
Technical Data Sheet
Product type Rated power
HV/MV/LV
Rated voltage Vector group Short-circuit impendence No-load loss
(kW)
On-load loss
(kW)
dimension
(L×W×H)m
HV
(kV)
MV
(kV)
LV(kV) HV-MV
(%)
HV-LV
(%)
MV-LV
(%)
ODFPS-
500000/
750
500 MVA/
500 MVA/
150 MVA
765/√3 345/√3±2×2.5% 63 Ia0i0 14 50 33 125 860 11.0×7.5×15.2
ODFPS-
500000/
750
500 MVA/
500 MVA/
150 MVA
765/√3 230/√3±2×2.5% 63 Ia0i0 19(22) 46 24(23) 110 860 11.5×7.9×15.2

ODFPS-500000/750 Transformer Outline Drawing

 

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