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Product Description

FZN25/FZRN25 type vacuum load switch and composite apparatus, suitable for three-phase AC 50Hz ring network or terminal power supply and industrial electrical equipment. for load control and short circuit protection use, load switch open and close the closed-loop current, no-load transformer and cable charging current, composite apparatus can break any current till rated short circuit current. Adopt the straight move or isolating fracture and vacuum interrupter linkage. With the function of manual and electric operation. FZRN25 special transmission structure design, arc extinguish chamber only withstand voltage in the moment of closing and breaking, small size, low price. FZN25, FZRN25 can realize isolation fracture and arc extinguish chamber fracture disposable operating FZN25, FZRN25 has a grounding switch mutual linkage grounding valve between the static contact and movable conductive cylinder, ensures safety and convenient maintenance.

 

◆It is suitable for three-phase AC 50 / 60Hz interruption power supply and industrial electrical equipment

◆For load control and short circuit protection

◆Load switch breaking load, closed-loop current, no-load transformer and cable charging current

◆The current of the combined apparatus is up to the rated short-circuit current

◆It adopts direct acting isolation fracture and vacuum arc linkage, with manual and electric functions Feature:

◆Unique transmission structure design, small volume and light weight,

◆The interrupter only bears high voltage at the moment of making and breaking.

◆It can realize the one-time operation of isolating fracture and interrupter end fracture

◆There is a grounding valve linked with the grounding switch between the static contact and the moving contact conducting cylinder

◆It is safe and convenient to inspect

No.

project

units

parameter

FZN25-12D/T630-20

FZRN25-12D/T125-31.5

1

The rated voltage

kV

12

2

Rated frequency

HZ

50

3

Rated current

A

630

125

4

Rated insulation level

Voltage withstand 1min power frequency

kV

Arc extinguishing chamber fracture 30; To the ground, interphase 42; Isolation fracture 48

Lightning shock withstand voltage

kV

To the ground, phase 75; Isolation fracture 85

5

Rated dynamic stability current (peak)

kA

50

-

6

4S heat stabilized current

kA

20

-

7

Rated active load breaking current

A

630

125

8

Rated closed-loop breaking current

A

630

125

9

Rated cable charging break current

A

10

10

10

Turn off the no-load transformer capacity

KVA

1250

1250

11

Rated short circuit breaking current

kA

-

31.5

12

Rated transfer current, rated transfer current

A

-

2000

13

Fuse type


-

SDLAJ-12 SFLAJ-12

14

Impactor outputs energy

J

-

2-5(medium)

15

Rated short circuit closing current

kA

50

16

Ground switch rated dynamic stable current

kA

50

17

2S thermal stability current of the ground switch

kA

20

18

Rated voltage of the auxiliary circuit

V

AC/CD:220/110

19

Mechanical life

time

10000


    H8049968207ff4698ba23ccf01bf35b5bm (2)浙江金高FZRN25A-2021-9-27

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