DEPAA type dry glue paper DC through wall bushing
DEPAA type dry glue paper DC through wall bushing

Product Introduction:
The high pressure wall bushing is installed on the wall or roof of the building such as the converter valve hall, and is used as the conductive part to pass through the wall or other ground objects to provide insulation and support.
Application scenario:
Mainly used in DC converter valve hall through the wall sleeve
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& GB/T 22674& DL/T 1726 | |||
Technical parameter | Product model | DEPAA200/5000 | DEPAA400/5000 | DEPAA800/5000 |
Voltage level | ±200 | ±400 | ±800 | |
Lightning impulse full wave withstand voltage(kV) | 750 | 980 | 1950 | |
Operating impulse withstand voltage(kV) | 715 | 960 | 1675 | |
Dc long-term withstand voltage(kV) | 270 | 638 | 1275 | |
Polarity reversal voltage(kV) | 225 | 532 | 1063 | |
Temperature rise current(A) | 6250 | 6250 | 6250 | |
Seismic strength(g) | 0.4/0.2 | |||
Ambient temperature(℃) | The minimum temperature outside the door is -40℃, the maximum temperature is 40℃, and the valve hall side is 60℃ |
Frequently Asked Questions
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