Mine explosion-proof double power automatic transfer switch
An automatic transfer switch, explosion-proof technology, applied in the direction of emergency power supply arrangements, electrical components, circuit devices, etc., can solve problems such as low degree of automation, potential safety hazards, and affecting production efficiency
Pending Publication Date: 2018-11-06
徐州凯思特机电科技有限公司
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Problems solved by technology
[0003] The existing coal mine power main and standby power switching devices have low automation and poor reliability, and cannot switch to the backup power in time after the main power of the equipment is disconnected, so that the equipment cannot operate normally, seriously affecting production efficiency, and even causing certain damage. Security risks
Method used
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[0024] The present invention will be further described below in conjunction with accompanying drawing.
[0025] Such as figure 1 As shown, a mining explosion-proof dual-power automatic transfer switch includes a processor module, a mechanical interlock transmission mechanism, an indicator light module, a circuit breaker QN, a circuit breaker QR, a main three-phase input module, and a backup three-phase input module, main voltage and current detection module and backup voltage and current detection module;
[0026] The main three-phase input module is used to connect the main three-phase power, and output the main three-phase power to the circuit breaker QN;
[0027] The backup three-phase input module is used to connect the backup three-phase power, and output the backup three-phase power to the circuit breaker QR;
[0028] The main voltage and current detection module is used to detect the main power status of the main three-phase power connected to the main three-phase inp...
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The invention relates to a mine explosion-proof double power automatic transfer switch. Main and standby three-phase input modules are respectively used for accessing main and standby three-phase power, and respectively output three-phase power to circuit breakers QN and QR; main and standby voltage and current detection modules are used for detecting main and standby power states and sending thesame to a processor module; the circuit breakers QN and QR are respectively used for controlling the on and off of the output of the main and standby three-phase power; the processor module is used for receiving main and standby power state signals and comparing the same with a rated voltage value to output a switching control signal to a motor driving circuit; the motor driving circuit is used for driving a motor to rotate in the forward and reverse directions according to the switching control signal; the motor is used for driving a mechanical interlocking transmission mechanism; and the mechanical interlocking transmission mechanism is used for selecting one of the circuit breaker QN and the circuit breaker QR to be closed to connect or not connect power for a device. The transfer switch is high in automation and reliability, and ensures reliable and continuous power supply to the device.
Description
technical field [0001] The invention belongs to the technical field of intrinsically safe power supplies, and in particular relates to a mine-used explosion-proof dual power supply automatic transfer switch. Background technique [0002] In coal mines, some electrical equipment has a high demand for power supply, and the reliability and continuity of power supply have become an important problem for coal mine power supply systems. [0003] The existing coal mine power main and backup power switching devices have low automation and poor reliability, and cannot switch to the backup power in time after the main power of the equipment is disconnected, so that the equipment cannot operate normally, seriously affecting production efficiency, and even causing certain damage. Security risks. Contents of the invention [0004] Aiming at the problems existing in the above-mentioned prior art, the present invention provides a mine-used explosion-proof dual-power automatic transfer s...
Claims
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IPC IPC(8): H02J3/00H02J9/06
CPCH02J3/005H02J9/06Y04S20/20Y02B70/30
Inventor 赵杰孙红光李金昌杨文裕赵劲郑凯张玉峰刘锋
Owner 徐州凯思特机电科技有限公司