Movable Type HV Switchgear
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KYN61-40.5 Steel-clad Movable Type Switchgear
Movable Type HV Switchgear
KYN61-40.5 Steel-clad Movable Type AC Metal-enclosed Switchgear is suitable for indoor three-phase 50/60Hz, rated voltage 40.5kV circuits and single bus and single bus section power systems.
KYN61-40.5 Steel-clad Movable Type AC Metal-enclosed Switchgear is suitable for indoor three-phase 50/60Hz, rated voltage 40.5kV circuits and single bus and single bus section power systems. It is mainly used as a device for accepting and distributing electric energy in substation and transmission stations in power generators, substations, industrial and mining enterprises and high-rise building and for circuit control, protection and detection. The design and manufacturing of this Switchgear meet requirements in national standards GB3906 and GB/T 11022, power industry standards DL/T404 and DL/T593 and 18 Major Anti-Accident Measures of STATE GRID Corporation of China.

S/N

Item

Unit

parameters

1

Rated voltage

kV

40.5

2

Rated frequency 

Hz

 50

3

Main bus rated current

A

1250/1600/2000/2500

4

Main bus rated current

A

630/1250/1600

5

Rated insulation level

Lightning impulse withstand voltage (peak)

kV

185

215

1min power frequency withstand voltage (valid)

kV

Phase to phase and phase to ground

Disconnector fractures

95

115

6

Rated short-circuit open current 

kA

25

31.5

7

Rated short-circuit closing current (peak)

kA

63

80

8

Rated short-time withstand current (4 s)

kA

25

31.5

9

Rated peak withstand current

kA

63

80

10

Related voltage of supplementary controlled return loop

V

~110/-110；~220/-220

11

IP Grade 

Enclosure IP4X

IP2X when the door of the chamber and circuit breaker chamber is opened

1. Bus circular arc technology, optimized electrode shape and pyrocondensational insulating materials with equivalent voltage class, contributing to high insulation level and safe operation.
 
2. Each function chamber is sealed and isolated with metal partitions and has independently pressure release channel, realizing safe and reliable performance.
 
3. Interlock design between handcart and ground switch such as bus chamber and cable chamber backdoor, vacuum circuit breaker and isolation uses a combination of forced locking, electric interlock and microcomputer prevention measures, providing the product with complete interlocking protection functions to prevent misoperation.
 
4. Completed and diverse main wiring plan and flexible system connection.