ZW32-40.5(AB-3S/40.5) Overview
ZW32-40.5(AB-3S/40.5) permanent-magnet ( or spring ) vacuum circuit breaker--outdoor vcb breaker,
is made by specially design of permanent magnet ( or spring) and high reliable intelligent control efquipment
This product is mainly used for middle voltage overhead line network, act as...
Reference Standards of outdoor vcb breaker:
GB/T 1984 "High Voltage Ac circuit breaker"
GB/T11022 "High voltage switchgear and control equipment standard common technical requirements"
GB/T 311.1 "Insulation coordination of high voltage power transmission equipment :high pressure test technology"
DL/T403"12-40.5KV" high voltage vacuum circuit breaker ordering technical conditions"
Environmental conditions for usage:
Altitude does not exceed 1000m
Ambient air temperature: -40℃-+40℃
Wind speed is not greater than 35m/s
Pollution level: Class IV
Installation site: no flammable, no explosive hazard, no chemical corrosion.
Eartchquake intensitty does not exceed 8 degrees.
Main features of outdoor vcb breaker:
1. Circuit breaker adopts three-phase ipllar structure.It has reliable breaking performance,no combusition and explosion hazard,
maintenance-free,small size, light weight and long service lift.etc.
2. Circuit breaker with a fully enclosed structure,good sealing performance,help to improve the moisture.
anti-condensation performance,especially adapted to the use of cold or wet areas.
3. Three-phase pillar and current transformer using imported outdoor epoxy resin solid insulation.Which has high and low
temperature resistance.resistance to ultraviolet light, anti-aging characteristics.
4. Operating mechanism using small spring operating mechanism,low energy comsumption for breaking-closing;
use of direct transmission mode,sub-closing parts less,high reliablity.The operating mechanism and the arc extinguishing system are
placed in a sealed mechanism box to solve the problem of corrosion of components such as parts and improve the reliability of the circuit breaker.
The main technical parameters for circuit breaker( outdoor vcb breaker)
| No. | Item | Unit | Value |
| 1 | Rated voltage | KV | 12 |
| 2 | Rated frequency | Hz | 50 |
| 3 | Rated current | A | 630,1250 |
| 4 | Rated short-circuit breaking current | KA | 16,20,25 |
| 5 | Rated peak withstand current | 40,50,63 | |
| 6 | Rated short-time withstand Current | 16,20,25 | |
| 7 | Rated short-duration current | S | 4 |
| 8 | Rated short circuit closing current(peak) | 40,50,63 | |
| 9 | Rated operation sequence | O-0.3S-CO-180s-CO | |
| 10 | Mechanical life | time | 1000/isolating switch 2000 |
| 11 | Rated current breaking times | 10000 | |
| 12 | Rated short circuit breaking current breaking times | 50 | |
| 13 | Power frequency withstand voltage (1min) (wet) alternate to the ground (dry) interphase, ground/fracture | KV | 34 42/48 |
| 14 | Lightning impulse withstand voltage(peak) Interphase, ground/fracture | 75/85 | |
| 15 | Secondary circuit 1min power frequency withstand voltage (except electronics) | V | 2000 |
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