ZN63 (VS1)Side-Mounted Indoor High-Voltage Vacuum Circuit Breaker

Short Description:


Product Detail

Product Tags

Overview

ZN63(VS1)-12 series indoor high-voltage vacuum circuit breaker is an indoor high-voltage switchgear, suitable for three-phase power system with rated voltage of 12kV and frequency of 50Hz. It is used as protection and control electrical appliances. Excellent performance, especially suitable for places that require frequent operation at rated current, or break short-circuit current many times.
ZN63(VS1)-12 series side-mounted vacuum circuit breaker adopts fixed installation and is mainly used for fixed switch cabinet. system.

VS1

Normal Use Conditions

◆ Ambient temperature: – 10 ℃ to 40 ℃ (storage and transportation at – 30 ℃ are allowed).

◆ Altitude: generally not more than 1000m. (If it is necessary to increase the altitude, the rated insulation level will increase accordingly)

◆ Relative humidity: under normal conditions, the daily average is not more than 95%, the daily average saturated steam pressure is MPa, and the monthly average is not more than 1.8 × ten

◆ Seismic intensity: not more than 8 degrees under normal conditions.

◆ It can only be used in places without fire, explosion, serious pollution, chemical corrosion and serious vibration.

The Main Technical Parameters

Serial number

Name

Units

Data

1

Rated voltage

kV

12

2

Maximum working voltage

kV

12

3

Rated current

A

630
1250

630 1250
1600 2000
2500 3150

1250 1600
2000 2500
3150 4000

4

Rated short-circuit breaking current (rated thermally stable current – RMS)

kA

20/25

31.5

40

5

Rated short-circuit making current (peak value)

kA

50/63

80

100

6

Rated peak withstand current (rated dynamic stable current – peak value)

kA

50/63

80

100

7

4S rated short-circuit withstand current

kA

20/25

31.5

40

8

Rated insulation level

Working withstand voltage (before and after rated breaking) 1 min power frequency withstand voltage

kv

Ground 42 (fracture 48)

Impulse withstand voltage (before and after rated breaking) Rated lightning impulse withstand voltage peak value

Ground 75 (fracture 85)

9

Rated thermal stabilization time

s

4

10

Nominal Operation Sequence

Score – 0.3S – Combined – 180S – Combined

11

Mechanical life

times

20000

12

Rated short-circuit breaking current breaking times

times

50

13

Operating mechanism rated closing voltage (DC)

v

AC . DC 110,220

14

Operating mechanism rated opening voltage (DC)

v

AC . DC 110,220

15

Contact Spacing

mm

11±1

16

Overtravel (contact spring compression length)

mm

3.5±0.5

17

Three-phase opening and closing bounce time

ms

≤2

18

Contact closing bounce time

ms

≤2

19

Average opening speed

m/s

0.9~1.2

Average closing speed

m/s

0.5~0.8

20

Opening time

at the highest operating voltage

s

≤0.05

21

at minimum operating voltage

≤0.08

22

Closing time

s

0.1

23

Main circuit resistance of each phase

υ Ω

630≤50 1250≤45

24

The dynamic and static contacts allow the accumulated thickness of wear

mm

3


  • Previous:
  • Next: