FZN25/FZRN25 type 12KV HV MV vacuum load break switch and composite apparatus

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

Category: Switchgear & High Voltage Products

Model: FZN25/FZRN25

Power: 12KV/ 630A

FOB Port: Ningbo/Shanghai

Description

FZN25/FZRN25 type vacuum load break switch and composite apparatus, suitable for three-phase AC 50Hz ring network or terminal power supply and industrial electrical equipment

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.

Operating Methods

FZRN25 special transmission structure design, arc extinguish chamber only withstand voltage in the moment of closing and breaking, small size, low price.

 

◆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

FZN25/FZRN25 type 12KV HV MV vacuum load break switch and composite apparatus插图4FZN25/FZRN25 type 12KV HV MV vacuum load break switch and composite apparatus插图5


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