145kV 가스 절연 금속 밀폐형 스위치기어

ZF53-145(L)/T3150-40
The ZF53-145 (L)/T3150-40 gas insulated metal enclosed switchgear adopts an aluminum alloy shell three-phase common box structure. The basic modules include circuit breakers, three position isolation and grounding switches, isolation switches, grounding switches, quick grounding switches, bushings, cable terminals, current transformers, voltage transformers and other high-voltage electrical components.

Product Advantages
Miniaturization, modularity, high flexibility in system configuration, and maintenance free.
High technical parameters, rated short-circuit breaking current of 40kA, rated current can reach 3150A.
Reliable performance, with an annual air leakage rate of less than 0.1%, and a mechanical lifespan of 10000 cycles for the entire machine.
Application Scenarios
This product can be applied in a wide range of fields such as foreign power grids, large-scale thermal power, hydropower, petroleum and petrochemical, steel metallurgy, municipal construction, etc., providing strong support for energy transmission.
Technical Specifications

Rated Voltage	kV	145
Rated frequency	HZ	50/60
Rated current	A	2000/3150
Rated short-circuit breaking current	KA	40
Rated short-time withstand current	KA	40
Rated short-circuit current duration	S	4
Rated peak withstand current	kA	100
Short time power frequency withstand voltage (to ground/break)	kV	275/315
Lightning impulse withstand voltage (to ground/fracture)	kV	650/750
Mechanical life	Time	10000
Circuit breaker electrical life	Time	20