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  • SP-12/1600, 2000-31.5A Embedded Pole
Embedded Pole

SP-12/1600, 2000-31.5A Embedded Pole

The embedded pole seals the vacuum interrupter and main circuit conductive components into a whol...

  • Product Introduction
  • Product Features
  • Technical Parameters

Product Introduction

The embedded pole seals the vacuum interrupter and main circuit conductive components into a whole through epoxy resin insulation material. The product has the following advantages: simply assembly, high dielectric strength, and strong anti-pollution capability, reliable, free maintenance.

The 12KV and 40.5KV Embedded Pole of our company integrate the advantages of many products at home and abroad, possess excellent electrical performance and pass the complete type tests. The product is in conformity with the switch industry standards and adopted by many well-known electrical equipment manufactures at home and abroad.

Product Features

Compared with traditional assembly-type pole, SP-12/1600, 2000-31.5A embedded pole has simple structure, less removable parts and high reliability. The modular design is conducive to the reduction of switchgear size and high insulation performance. The impact of external environment on the vacuum interrupters is reduced to the minimum.

Technical Parameters

No.

Item

Unit

Parameter

1

Rated  Voltage

KV

12

2

Rated  Current   

A

1600

2000

3

Rated  Frequency

Hz

50

4

Rated   Short-circuit Breaking Current

KA

31.5

5

Rated   Short-circuit Breaking Current Frequency

time

30 (E2 Grade)

6

Max.   Tributary Component 

50%

7

Rated   Short-circuit Making Current (Peak) 

KA

100

8

Rated   Peak Withstand Current

KA

100

9

Rated   Short-circuit Withstand Current (4s)

 KA

31.5

10

Rated   Breaking Current of Single Capacitor

KA

630

11

Rated   Breaking Current of Back-to-back Capacitor

A

400

12

Partial   Discharge Value (1.1 Ur)

A

≤5

13

Short-time(1min)Power   Frequency Withstand Voltage

PC

48

14

Lightning   Impulse Withstand Voltage (Peak)

KV

85

15

Circuit   Resistance at Rated Contact Pressure

KV

≤12

16

Mechanical   Life

µΩ

30000

17

Contact   Closing Force

time

200±50

18

Contact   Counterforce under Clearance between Open Contacts

N

300±50

19

Allowable   Wear-thickness

N

3

20

Shelf   Life

mm

20

21

Quality

year

25

22

Rated   Operation Sequence

kg

0-0.3s-CO-180s-CO

Mechanical   Parameters of Assorted Vacuum Switch (Recommended Value)

23

Clearance   between Open Contacts

mm

10±1

24

Contact   Connection Stroke

mm

4±1

25

Average   Closing Speed (0-6mm Stroke)

m/s

0.6±0.2

26

Average   Opening Speed (6mm-Contract Close)

m/s

1.1±0.2

27

Contact   Initial Pressure

N

≤3200

28

Rated   Contact Pressure

N

4200±300

29

Contact   Closing Bounce Time

ms

≤2

30

Contact   Opening Bounce Time

ms

31

Opening   Contact Re-bounce Amplitude

mm

≤2

32

Opening   Contact Overshoot Amplitude

mm

≤2