FZW32 Outdoor High Voltage Vacuum Load Break Switch: Unparalleled Performance and Reliability

The c outdoor high voltage vacuum load break switch is a remarkable innovation in the field of load switch technology. It is the result of a seamless integration of well-established domestic switch manufacturing know-how and state-of-the-art international techniques. This switch is designed to operate within a voltage range of 12kV to 45.5kV, making it suitable for a wide variety of medium to high voltage power distribution applications.

Description

1. Core Components and Working Principle

This advanced load break switch comprises three essential parts: the disconnect blade, the vacuum interrupter, and the operation mechanism. The utilization of the vacuum arc-extinguishing chamber principle is the cornerstone of its exceptional functionality. The vacuum environment within the interrupter enables it to rapidly and effectively quench electrical arcs. This not only ensures a strong arc-extinguishing capability but also contributes to its reliable performance. The switch is engineered to have a long lifespan, reducing the need for frequent replacements and maintenance. Its compact size makes it a space-efficient solution, suitable for various installation scenarios. Moreover, the absence of explosion risk and zero pollution characteristics make it an environmentally friendly and safe choice for power distribution applications.

2. Versatile Application in Key Sectors

When combined with suitable vacuum load switches, the FZW32 switch plays a crucial role in power distribution systems across multiple industries. In the power sector, it helps in efficient power transmission and distribution within the 12kV – 45.5kV range, ensuring the stability of the grid. In metallurgy, it can handle the high-power demands and frequent switching requirements of industrial furnaces and other heavy machinery. The mining industry benefits from its reliable performance in harsh and potentially explosive environments, where safety and durability are of utmost importance. In the chemical sector, it can control and protect electrical circuits in plants with complex chemical processes and corrosive atmospheres. It is especially well-suited for locations that demand frequent operations, such as industrial substations and distribution centers where load balancing and circuit isolation are regularly carried out.

3. Adaptability to Diverse Environmental Conditions

The FZW32 switch is designed to operate under a wide range of ambient conditions. It can function smoothly at altitudes up to 2000m, which makes it suitable for installations in mountainous regions or high-altitude industrial sites. The ambient air temperature range from -30℃ to +40℃, with a daily temperature difference not exceeding 32K, allows it to endure both cold and hot climates. It can withstand wind pressures of up to 700Pa (equivalent to a wind speed of 34m/s), ensuring its stability even in windy areas. With a degree of air pollution of Grade IV as per the relevant standard (GB5585), it can handle moderately polluted environments. Additionally, its ability to tolerate seismic intensities of up to 8 degrees and ice thicknesses on insulation of up to 10mm makes it a reliable choice for regions prone to earthquakes and icing conditions.

Technical specification

No. Item Unit Data
1 Rated Voltage KV 12 24 40.5
2 Rated Frequency Hz 50 50 50
3 Rated Current A 630 1250 1250
4 Rated Active Load Breaking Current A 630 1250 1250
5 Rated Loop Breaking Current A 630 1250 1250
6 5% Rated Active Load Breaking Current A 31.5 62.5 62.5
7 Rated Cable Charging Breaking Current A 10 10 25
8 Rated No-load Transformer Breaking Capacity KVA 1600 1600 1600
9 Rated Breaking Current of Capacitor Bank A 100 100 100
10 1-minute Power Frequency Withstand Voltage: Vacuum Break Phase-to-phase,Phase-to-ground/lsolation Break KV 42/48 52/65 68/95/110
11 LightningImpulse Withstand Voltage: Phase-to-phasePhase-to-ground/lsolation Break KV 78/85 125/145 185/215
12 Rated Short-time Withstand Current (Thermal Stability) KA 20 20 25
13 Rated Short-circuit Duration s 4 4 4
14 Rated Peak Withstand Current (Dynamic Stability) KA 50 50 63
15 Rated Short-circuit Open-close Current KA 50 50 63
16 Mechanical Life Times 10000 10000 10000

Product Main Structure Diagram

12kV

FZW32 Outdoor High Voltage Vacuum Load Break Switch: Unparalleled Performance and Reliability插图3

24kV

FZW32 Outdoor High Voltage Vacuum Load Break Switch: Unparalleled Performance and Reliability插图4

40.5kV

FZW32 Outdoor High Voltage Vacuum Load Break Switch: Unparalleled Performance and Reliability插图5