Isolate Switch
1.Type:FZN25
2.Standard|:IEC GB
3.Main Material:Procelain&Steel
Overview
FZN25, FZRN25 vacuum load switch combination units, for three-phase AC 50Hz ring network power and industrial power equipment for load control and short circuit protection purposes, load switch division and load, closed Loop current, no load transformer cable charging current. Switchgear can be up to the rated short-circuit breaking current of any current. Fracture separation using direct-action and vacuum arc chamber linkage. With manual and electric functions.
FZN25, FZRN25 unique structural design of transmission, interr upter only when closing and withstand high pressure breaking the moment, so small and light weight.
FZN25, FZRN25 isolation can be achieved and the interr. upter Fracture Fracture A Times of operation.
FZN25, FZRN25 static contact with the moving contacts in the lead torch switch between each other linked with the earth ground valve, ensures safe and convenient maintenance.
Main technical parameters
Serial number | Project | Unit | Parameter | ||
FZN25-12D/T630-20 | FZN25-12D/T125-31.5 | ||||
1 | Rated voltage | KV | 12 | ||
2 | Rated frequency | Hz | 50 | ||
3 | Rated Current | A | 630 | 125 | |
4 | Rated insulation level | 1min frequency voltage | KV | Interr upter Fracture30.on the ground, white 42 .solation Fracture48 | |
Lightning impulse withstand voltage | KV | on the ground, white 75 solation Fracture85 | |||
5 | Rated dynamic stability current (peak) | KA | 50 | —— | |
6 | 4Sthermal 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 breaking current | A | 10 | 10 | |
10 | Breaking load transformer | KVA | 1250 | 1250 | |
11 | Rated short-circuit breaking current | KA | —— | 31.5 | |
12 | Rated transfer current, rated current transfer | A | —— | 2000 | |
13 | Fuse Model | —— | SDLAJ-12 SFLAJ-12 | ||
14 | Impact energy output | J | —— | ||
15 | Rated short circuit making current | KA | 50 | ||
16 | Ground switch rated Dynamic current Dynamic current | KA | 50 | ||
17 | Grounding switch 2Sthermal current | KA | 20 | ||
18 | secondary circuit Rated voltage | V | AC/CD220.110 | ||
19 | Mechanical life | Times | 10000 |