Beijing Huadong Electric Co., Ltd.
Main products:High Voltage Products,Low Voltage Products,Medium Voltage Products,Vacuum Circuit,Switchgear
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  • Contact Person : Ms. Wang Grace
  • Company Name : Beijing Huadong Electric Co., Ltd.
  • Tel : 0086-10-67668022
  • Fax : 0086-10-87697121
  • Address : Beijing,Beijing,Room 408, B unit, No.1 building, No.16, Ronghua South Road, Beijing Economy technologyl developed area,Beijing.
  • Country/Region : China

KYN61-40.5KV metal-clad movable AC enclosed switchgear

KYN61-40.5KV metal-clad movable AC enclosed switchgear
Product Detailed
KYN61-40.5KV conforms to the standards of IEC60298 and GB3906, holds reliable five kinds of protection measures functions.

Main technical parameters:

No.

Item

Unit

Parameter

1

Rated voltage

kV

40.5

2

Rated frequency

Hz

 50

3

Main bus bar rated current

A

1250

1600

 2000

4

Branch bus bar rated current

A

630

1250

1600

2000

5

Rated insulation level

1min power-frequency withstand voltage

kV

Between phases, over grounding

Primary isolated fracture

95

115

Lightning impulse withstand voltage

kV

185

215

Auxiliary control loop power-frequency withstand voltage

V

2000

6

Rated short-circuit breaking current(effective value )

kA

25

31.5

7

Rated moderate makeup current (peak)

kA

63

80

8

Rated peak withstand current

kA

63

80

9

Rated short-time withstand current

kA

25

31.5

10

Auxiliary control loop rated voltage

V

-110

-220 

~220

11

Protection grade

Enclosure IP4X

Compartment, when the door to circuit breaker chamber is open, it is IP2X.

Technical parameters of  40.5KV vacuum circuit breaker inside the switchgear as below: 

No

Item

Unit

Parameter

1

Rated voltage

kV

40.5

2

Rated frequency

Hz

50

3

Rated insulation level

1min power-frequency withstand voltage

kV

95

Lightning impulse withstand voltage(peak )

185

4

Rated current

A

630

1250

1600

2000

5

Rated short-time withstand current

kA

25

31.5

6

Rated peak withstand current

kA

63

80

7

Rated short-circuit duration

s

4

8

Rated short-circuit current

kA

25

31.5

9

Anticipated transient recovery voltage

kV

According to GB1984

10

Rated short-circuit makeup current

kA

63

80

11

Rated single capacitor bank breaking current

A

630

12

Rated operation sequence

O-0.3S-CO-180S-CO

13

Breaking times of rated short-circuit breaking current

time

20

14

Break brake time t

ms

50~85

15

Close brake time t

ms

40~85

16

Mechanism life

time

10000

17

Contact distance

mm

22±2

18

Over journey

mm

6±2

19

Allowable wear thickness for contact

mm

≤3

20

Average closing brake speed

m/s

0.5~0.8

21

Average breaking brake speed

m/s

1.6~2

22

Contact closing brake tripping time

ms

≤3

23

Asynchronism of breaking brake for three-phase contact

ms

≤2

24

Asynchronism of closing brake for three-phase contact

ms

≤2

25

Each phase loop resistance

μ Ω

  ≤55

KYN61-40.5KV metal-clad movable AC enclosed switchgear



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