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ZW28-12 outdoor boundary vacuum load switch

FZW28-12 series outdoor boundary vacuum load switch is applicable to the outdoor three-phase AC distribution system with rated voltage of 12kV and rated frequency of 50Hz. It is used for opening and closing load current and closing short-circuit current. It is applicable to substations, industrial and mining enterprises, urban and rural power grid protection cities, rural power grid automatic distribution networks and places with frequent operation.

products detial


What we can do ? different country different requirement all we can offer.

Mid-voltage ( kV)

3.6~35kv

(E.g. 35,33,24,22,20,18,15.75,13.8,13.2,12,11,10.5,10,7.2,6.6,6.3,6 etc.)

To Low voltage ( V)

100-660V

 (E.g. 100,110,115,120,127,208,200,220,230,240,346,380,400,410,415,440,480,660 etc.)

Frequency (HZ)

50Hz or 60Hz

ZW28-12 outdoor boundary vacuum load switch

1、 Overview

FZW28-12 series outdoor boundary vacuum load switch is applicable to the outdoor three-phase AC distribution system with rated voltage of 12kV and rated frequency of 50Hz. It is used for opening and closing load current and closing short-circuit current.

It is applicable to substations, industrial and mining enterprises, urban and rural power grid protection cities, rural power grid automatic distribution networks and places with frequent operation.

The boundary load switch is composed of fzw28-12 vacuum load switch and controller, which are electrically connected through aviation socket and outdoor sealed control cable. It can reliably judge the Ma inside and outside the detection boundary

Zero sequence current and phase to phase open circuit current can be suitable for distribution systems with different neutral grounding modes.

2、 Model and description

FZW28-12 / T 口 - 口

口 - rated short-circuit breaking current

口 - rated current

T-spring operating mechanism

12 - rated voltage

28 - Design serial number

W - Outdoor

FZ- vacuum load switch

2、 Technical parameters

No.

Name

Unit

Data

1

Rated voltage

kV

12

2

Rated insulation level

1min Power frequency withstand voltage

(Interpolar to the ground/fracture)

kV

Dry

42/48

3

Lightning shock pressure resistance

(Interpolar to the ground/fracture)

Wet

34

4

Rated frequency

Hz

50

5

Rated current

A

63

6

Rated time-delay tolerance current and duration

kA/4s

16

20

7

Rated peak tolerance current

kA

40

50

8

Rated short circuit to turn off the closing current

kA

40

50

9

Mechanical life

time

10000

10

Net Weight

kg

198

0078+

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