ZW32-40.5/630A/1250A 35KV vacuum circuit breaker on column

ZW32-40.5/630A/1250A 35KV vacuum circuit breaker on column

ZW32-40.5 Outdoor High Voltage Vacuum Circuit Breaker Product Introduction‌

‌Product Overview‌
ZW32-40.5 outdoor high-voltage vacuum circuit breaker is an intelligent distribution equipment suitable for 40.5kV voltage level. It adopts vacuum arc extinguishing technology and is designed specifically for substations, industrial and mining enterprises, and new energy generation systems. The product has high breaking capacity, long mechanical life, and intelligent monitoring function, meeting the stable operation requirements in harsh outdoor environments. 、

ZW32-40.5/630A/1250A 35KV vacuum circuit breaker on column

‌Core Features‌

1. ‌High performance arc extinguishingVacuum arc extinguishing chamber design, short-circuit breaking current up to 25kA, no explosion risk, maintenance free.

2. ‌fully sealed structureStainless steel casing with silicone rubber seal, protection level IP67, dustproof, waterproof, and corrosion-resistant.

3. ‌intelligent controlOptional FTU module, supporting current/voltage monitoring, fault recording, and remote opening and closing operations.

4. ‌Flexible installationPillar structure, compatible with CT, PT and isolation switches, suitable for various wiring schemes.

‌Technical Specifications‌

• Rated voltage: 40.5kV | Rated current: 1600A

• Mechanical lifespan: 10000 cycles | Energy storage time ≤ 15s

• Environmental temperature: -40 ℃~+70 ℃

‌application field‌
35kV substation outgoing line protection
■ Grid connection of wind/photovoltaic booster stations
Power distribution in harsh environments such as mines and oil fields

(Note: The product complies with the GB/T 1984 standard)

ZW32-40.5 Vacuum Circuit Breaker Product Technical Manual

1、 Core Features

Arc extinguishing technology

The vacuum arc extinguishing chamber adopts a longitudinal magnetic field contact structure, with a short-circuit breaking capacity of 31.5kA (rated current 1250A) and an electrical life of over 10000 mechanical operations

intelligent control

Built in DSP digital protection module, supporting overcurrent, quick break, and grounding protection (accuracy ± 1.5%)

Optional 5G communication module for remote switching and status monitoring

2、 Structural Design

Sealing system:

Stainless steel box filled with SF6 gas (0.04MPa), protection level IP67, passed the environmental test at -30 ℃~+70 ℃

Operating mechanism:

Spring energy storage mechanism, closing time ≤ 75ms, opening time ≤ 45ms

3、 Technical parameters

Project parameter value Rated voltage 40.5kV Power frequency withstand voltage (1min) 95kV Lightning impulse withstand voltage 185kV Mechanical life 20000 times

4、 Application scenarios

■ Wind/photovoltaic booster station collection line protection

Intelligent transformation of urban power grid ring main unit

Explosion proof area distribution system in petrochemical enterprises

5、 Certification and Standards

KEMA certified (report number K2105-ED01)

Compliant with GB/T 11022-2020 and IEC 62271-100 standards

(Note: Provide tools for calculating altitude correction factors and solutions for seismic fortification up to 8 degrees)