VSG-40.5 35kV High Voltage Vacuum Switches with Embedded Poles for KYN61 switchgear

• Specification
• Parameters
• Drawing

• VSG indoor high-voltage vacuum circuit breaker is an indoor device with three-phase AC 50Hz and rated voltage of 40.5kV. It can be used for the control and protection of electrical equipment in industrial and mining enterprises, power plants and substations, especially for places with frequent operations. The installation form of the circuit breaker in the switch cabinet can be either a fixed type or a withdrawable type installed on a trolley.

  VSG indoor high-voltage vacuum circuit breaker has reliable performance and is easy to install. It is the best choice for the control and protection of high-voltage transmission and dstribution systems.

  Applying ambient conditions
  1. Ambient air temperature: -40°C~+40°C, and no more than 35°C within 24 hours
  2. Relative humidity: the daily average value is not greater than 95%; the monthly average value is not greater than 90%
  3. Altitude:≤1000m

• Main technical parameters

  No.	Item	Unit	Data
  1	Rated voltage	KV	40.5
  2	1min rated short-duration power frequency withstand voltage	KV	95
  3	Lightning impulse withstand voltage	KV	185
  4	Rated frequency	Hz	50/60
  5	Rated current	A	630/1250/1600/2000/2500
  6	Rated short-circuit breaking current	KA	20	25	31.5
  7	Rated short-circuit making current (peak value)	KA	50	63	80
  8	Rated short-time withstand current	KA	20	25	31.5
  9	Rated peak withstand current	KA	50	63	80
  10	Rated short-time withstand current duration	S	4
  11	Rated operating sequence		0-0.3s-CO- 180s-CO
  12	Rated short-circuit current breaking times	Times	30
  13	Mechanical Life	Times	10000

  After adjusting the circuit breaker, the mechanical characteristic parameters are shown in table two

  No.	Item	Unit	Data
  1	Contact opening distance	mm	20±2
  2	Contact overtravel	mm	6±1
  3	Average closing speed	m/s	0.6±0.2
  4	Average breaking speed	m/s	1.2±0.2
  5	Contact closing bounce time	ms	≤3
  6	Contact Closing and Breaking Non-simultancous	ms	≤2
  7	Circuit resistance per phase	μΩ	≤80
  8	Permissible accumulated wear thickness of dynamic and static contacts	mm	3

  (table two)

   

• Overall Outline Drawing

  

  About us
  We are specialty on providing medium voltage and high voltage circuit breaker and switchgear components, such as 12KV, 24 KV, 36KV and 40.5KV embedded cylinder, insulated operating rod, auxiliary circuit socket, counter, circuit breaker board, vacuum circuit breaker plastic panel, connection terminal, vacuum circuit interrupter and so on. These components apply on 630A, 1250A, 2500A, 3150A and 4000A VS1 (ZN85-40.5) circuit breaker and KYN28A-12 and KYN61 high voltage switchgear.