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The working principle of the double power interlock is that after the knife switch 1HK and 2HK are closed, the main power switch K1 and the standby power switch K2 are closed in turn. At this time, the coil 1C is live, the AC contactor 1C is absorbed, and the main power supply is supplied by six inverters. When the main power failure, the main power side 1C coil power loss, the standby power side 1C normally closed contact close, 2c Coil live, draw on AC contactor contact point 2C, through 2C, the backup power supply to six frequency converters to complete the automatic switching function. The actual power interlock circuit is powered by two groups of main and standby power sources, each group is powered by six inverters. To ensure the safe and reliable operation of the boiler unit, the interlock signals of full stop and stop of the forced draft fan and boiler are introduced in the circuit. After the modification of the main steam pressure regulating system of the unit, the frequency conversion regulating system has the following advantages: (1) the frequency conversion regulating system has wide range, high sensitivity and linearity up to 0.99. (2) the Electric Control Circuit is simple and reliable. (3) it has the functions of automatic protection against power loss, phase failure, over-voltage and over-current of motor. (4) high power factor, high efficiency, energy saving and power saving. (5) the motor only accepts the three-phase power supply with adjustable frequency and omits the mechanical transmission gear. (6) AC frequency converter based on microprocessor replaces mechanical speed regulation, reliable control, easy maintenance and high performance-price ratio. (7) the utility model can realize constant motor torque, constant power output, uniform powder feeding and stable combustion, and reduce the steady combustion and oil feeding of the boiler. (8) the double working power supply is standby to each other. When the working power supply on one side is out of voltage, power cut off or under voltage, the working power supply on the other side will be put into operation automatically. (9) equipped with communication interface, can be connected with the distributed control system network, become the basic control station of the distributed control system. After shifting the transmission, pull the hand brake tightly (the hand brake works reliably) and crank the engine with the hand handle. If the engine can be shaken, the clutch slip is proved. If the clutch slip fault, affecting the vehicle's power, economy and the normal use of the vehicle, should be checked out in time. Here's how. Check the operating mechanism to determine whether the pedal motion interference; whether the Pedal Return Spring is too soft, loose, broken; whether the pedal bearing is poorly lubricated, rust stuck; Whether the return spring of the separated bearing is too soft, loose, broken, etc. . Then clean, lubricate, adjust or repair as appropriate. Check whether the clutch pedal has free travel, if there is no free travel,

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青春，是一包象征著陽光的向日葵種子，在現(xiàn)在灑下，就會在未來得到收獲，那一株株飽含青春的花朵，

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CI615

DSHM302

DSIC111

DSIH700

DSIH71

DSIH75VF

DSIH900

DSMB110

DSMB112

DSMB115

DSMB116

DSMB123

DSMB124

DSMB125

DSMB126A

DSMB127

DSMB133

CI615 由【廈門興銳嘉進出口有限公司】優(yōu)惠供應(yīng).