Applicable scope and characteristics of products

KYN61-40.5 metal armored central switchgear is designed according to the armored metal enclosed switchgear in the GB3906-2006. It is suitable for three-phase AC power system with rated voltage of 40.5kV and rated frequency of 50Hz. It is used to accept and distribute electric energy and control, protect and detect the circuit.

This product is widely used in power plants, substations and distribution room of industrial and mining enterprises to receive and distribute electric energy, with control, protection and monitoring functions.

Main technical parameters of products

Serial Number

Project

Unit

Parameters

1

Rated voltage

kV

40.5

2

Rated frequency

Hz

50

3

Rated insulation level

1min power frequency withstand voltage (effective value)

kV

Interphase relative ground

95

Isolation fracture

 

Lightning impulse withstand voltage (peak)

185

 

Power frequency withstand voltage of auxiliary control circuit

 

4

Rated current

A

1250，1600，2000

5

Rated short-circuit breaking current

kA

20

25

31.5

6

Rated short-circuit closing current (peak)

50

63

80

7

Rated short-time withstand current (4S)

20

25

31.5

8

Rated peak withstand current

50

63

80

9

Rated peak withstand current

V

DC or AC 110/220

10

Protection level

 

IP3X

11

Overall dimensions (W x D x H)

mm

1400*2800*2600

12

Quality

kg

2000-2200