EPTA RIP dry dip paper AC transformer bushing
EPTA RIP dry dip paper AC transformer bushing
Product Introduction:
Transformer bushing is the main insulation device outside the transformer and reactor fuel tank, and the lead wire of the transformer winding must pass through the insulation bushing, so that the insulation between the lead wire and the lead wire and the transformer fuel tank are insulated, and it also plays the role of fixing the lead wire.
Application scenario:
Ac transformer, reactor;
Product features:
Electrical performance
The core adopts RIP structure with high insulation heat resistance to avoid long-term aging of insulation materials. Using advanced winding and curing technology, the product discharge is <3pC.
The automatic winding machine is used for winding, and the inner insulation ratio of the core is high, which can effectively improve the distribution of the outer insulation electric field under harsh conditions.
Mechanical property
Double-channel sealing structure, excellent waterproof and leak-proof performance.
With high mechanical strength, meet the requirements of Class Ⅷ earthquake resistance.
The use of high-strength materials to cope with metal fatigue under long-term operation.
Operational thermal stability
No oil, easy to explode, fire and other phenomena after failure, high safety and reliability;
Excellent insulation, maintenance free.
Operating environment
Can be used in high altitude areas;
Can be used in heavy dirty areas.
Product parameter
Key technical parameters | |||||||||
Standard | IEC 60137 & GB/T 4109 | ||||||||
Technical parameter | Maximum voltage of equipment(kV) | 72.5 | 126 | 145 | 170 | 252 | 363 | 550 | 800 |
Power frequency withstand voltage(kV) | 155 | 255 | 305 | 355 | 505 | 625 | 870 | 1075 | |
Lightning impulse full wave withstand voltage(kV) | 325 | 550 | 650 | 750 | 1050 | 1175 | 1800 | 2400 | |
Operating impulse withstand voltage(kV) | - | - | - | - | 850 | 950 | 1300 | 1550 | |
Rated current (A) (cable type) | 630- 1250 | 630- 1250 | 630- 1250 | 630-1250 | 630- 1250 | - | - | ||
Rated current (A) (carrier current) | 1600-3150 | 1600-3150 | 1600-3150 | 1600-3150 | 1600-3150 | 630- 3150 | 630- 4000 | 2500 | |
Ambient temperature(℃) | Minimum temperature:-45℃,Maximum temperature:45℃ | ||||||||
Seismic strength(g)) | 0.5/0.25 |
Frequently Asked Questions
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