12KV Armored Withdrawable Switchgear
This device is an indoor metal-clad withdrawable switchgear (hereinafter referred to as switchgear), designed for 3.6-12 kV three-phase AC 50Hz single busbar and single busbar sectional systems.
Product Overview
This device is an indoor metal-clad withdrawable switchgear (hereinafter referred to as switchgear), designed for 3.6-12 kV three-phase AC 50Hz single busbar and single busbar sectional systems. It is a complete set of distribution equipment mainly used in power plants, for the power supply of small and medium-sized generators, distribution for industrial and mining enterprises, reception and supply in secondary substations of power systems, as well as starting of large high-voltage motors. It implements control, protection, and monitoring functions. This switchgear meets the requirements of standards such as IEC298 and GB3906, featuring interlock functions that prevent the withdrawal of the circuit breaker under load, prevent incorrect opening or closing of the circuit breaker, prevent closing the circuit breaker when the grounding switch is in the closed position, prevent accidental entry into live compartments, and prevent incorrect operation of the grounding switch while energized. It can be equipped with either the VS1 vacuum circuit breaker or ABB's VD4 vacuum circuit breaker, making it a highly efficient and superior distribution device.
Technical Parameters
| Name | Unit | ZN63A-12(VS1) | VD4 |
|---|---|---|---|
| Rated voltage | kV | 12 | 12 |
| 1min power frequency endurable voltage | kV | 42 | 42 |
| Rated impulse withstand voltage (peak value) | kV | 75 | 75 |
| Rated frequency | Hz | 50 | 50 |
| Rated current | A | 630, 1250, 1600, 2000, 2500, 3150, 4000, 5000 | 630, 1250, 1600, 2000, 2500, 3150, 4000, 5000 |
| Rated current of branch busbar | A | 630, 1250, 1600, 2000, 2500, 3150, 4000, 5000 | 630, 1250, 1600, 2000, 2500, 3150, 4000, 5000 |
| Rated short time withstand current (virtual value) | kA | 16, 20, 25, 31.5, 40, 50 | 16, 20, 25, 31.5, 40, 50 |
| Rated peak endurable voltage | kA | 40, 50, 63, 80, 100, 125 | 40, 50, 63, 80, 100, 125 |
| Rated short-circuit duration | s | 4 | 4 |
| Protection level | — | The shell is IP4X, and IP2X when compartment door and handcart door are opened | |
| Weight | kg | 700~1200 | 700~1200 |
Structure Diagram
Rooms
Components
