Contact us

Sales hotline :
+86-917-3363886
E-mail:
sunnymeng@westpowerelectric.com
Web:
www.tongzhongdianqi.com

   ID:sunny-meng6
location:Return VTZ/R-12
VTZ/R-12
☆ introduce 

Side mounting type indoor High Voltage Vacuum Circuit Breaker

 VTZ/R-12


VTZR-12.jpg


1.General  Description

VTZ/R-12/T Side mounting Indoor High Voltage Vacuum Circuit Breaker is widely used for 3phase AC 50(60)HZ and 3.6-24KV indoor device,which is used for protecting and controlling electrical equipment in fields of industry&mining enterprise. power plants and substation.

2.Applying  conditions:

Ambient temperature;-10----+40

Relative humidity:daily average ≤95%,monthly average ≤90%

 Seismic intensity ≤8

Saturated vapor pressuredaily average ≤2.2kPamonthly average≤1.8kPa

Altitude:≤1000m;(Not including special requirement

Service environmentshould be avoided fire, explosion risk, serious pollution, chemical corrosion and violent vibration

3.Structural characteristics:

1.Adopt module operating mechanism,integrated stored energy hand shank and reasonable whole structure.

2. Use module design to easy dis-assemble and replace broken parts.

3.Adopt Solid-closure technology in primary circuit to improve insulation and achieve free maintenance.

4.Long life,The circuit breaker meet M2 &E2.

5.Own excellent breaking property to make and break  inductance and capacitance.

6.suitable for KYN-28and XGN-12 and replace VD4-12 and HVX-12.

7.Flexible main circuit connection way to meet different requirement of switchgear .

4.Technical specification

No.

Item

Unit

Data

1

Rated voltage

kV

12

2

Rated frequency

Hz

50/60

3

Rated insulation levels

Rated power frequency withstand voltage/1min

kV

42

Rated lighting impulse withstand voltage

kV

75

4

Rated current

A

630

1250

5

Rated short circuit breaking current

kA

20

20

25

25


31.5

6

Rated short circuit making current(peak)

kA

50

50

63

60


80

7

Rated duration of short circuit

s

4

8

Rated operating sequence


O-0.3s-CO-180s-CO

9

Mechanical life

Times

30000


5.Overall drawing




6.Secondary connection diagram







prev:VTZ/R-24
next: VTZ-40.5