KJZ16-1200/1140(660)-4(6、8) Mine explosion-proof and intrinsically safe combined vacuum feeder switch
Suitable for methane and coal dust explosion hazard environment and power supply system with rated frequency of 50 Hz, rated voltage of 1140V, 660V and ungrounded neutral point, it can be used as a multi-branch distribution switch with a total capacity of not more than 1200A. It provides two auxiliary power sources of 127V, 220V, with independent protection function, to meet the needs of substation lighting, and is the ideal replacement product of traditional feeder switch and lighting comprehensive insurance.Automatic control of power supply equipment can be realized by using monitoring system in mine.
Square shell, quick opening structure and modular core. Simple and reasonable structure and convenient operation.
Combination of SFLP-6 microcomputer integrated protection unit, CSC-6TG-M8 integrated control unit and industrial control technology realize the advanced mode of decentralized protection and centralized control, which is of powerful function, stable performance and friendly interface.
The internal data is communicated by optical fiber, which ensures the normal high speed transmission of the signal, and eliminates the phenomena of crash, misoperation and disorder code.
The touch screen of 10 inch TFT color industrial computer is used to display the important parameters such as system voltage, three-phase current, circuit on-line state, fault type and so on. With fault memory and inquiry function. With man-machine interface keyboard, can amend fixed protection value without power failure and various kinds of operations.
With overload, short circuit, leakage, leakage latch, overvoltage, undervoltage, broken phase, three-phase imbalance, over-voltage absorption and other protection functions.
It has the function of selective leakage protection, wind power gas locking and electric metering.
With patented manual tripping mechanism, each circuit can be manually opened separately.
With ZN7 vacuum circuit breaker, the breaking capacity can reach 9kA, which solves the problem that the current 400A vacuum feeder switch has insufficient breaking capacity when it works under voltage of 660V.
Provides two auxiliary power of 127V(4kVA),220V(1kVA) to protect the line by combining with vacuum contactor and microcomputer integrated protector.
With standard LAN communication interface, it is configured in mine monitoring and monitoring system to realize 4 remote functions, namely telemetry, remote control, remote communication, remote adjustment. Can realize the functions of remote dividing, closing, remote reading of meter, thus to achieve unattended operation in the substation.
