Diesel generator can not produce electricity cause analysis

Reasons for generator failure and treatment:

(1) Cause: wiring error.

Disposal: Check and correct according to the wiring diagram.

(2) The reason, the speed is too low.

Disposal: Measure the speed and make it stick to the rating.

(3) Cause: there is mud or oxide in the wiring head between the stator winding and the generator distribution equipment, the wiring screw is loose, the connecting line is broken, the stator winding is broken.

Disposal: Use a multimeter or light test method to find out where the line is broken. Check the connection status and contact status of each connection screw.

(4) Reason: excitation circuit break or bad contact.

Disposal: Use a multimeter to identify the broken line, weld the broken line again, wrap up insulation.

(5) Reason: rectifier tube (including rectifier diode, thyristor) damage.

Disposal: Replace damaged components.

(6) Reason: brush and slip ring contact is bad or brush pressure is not enough.

Disposal: clean the surface of the slip ring, polish the brush, make it fit with the surface of the slip ring, increase the pressure of the brush.

(7) Reason: brush grip rust, brush can not slide up and down.

Disposal: Use emery cloth to clean the inside of the brush grip. If damaged, it should be replaced.

(8) Cause: Incorrect position of exciter brush, damaged brush or insufficient spring pressure.

Disposal: Adjust the brush to the correct position, change the brush, adjust the spring pressure.

(9) Reason: the rotation direction of the prime mover is wrong.

Disposal: Change the rotation direction of the prime mover.

(10) The reason; The exciter winding connection is wrong, the polarity connection is reversed.

Disposal: correct winding connection, and according to its polarity with dry battery, battery re - magnetization.

(11) Reason: exciter field rheostat line break.

Disposal: Identify the broken line and connect it.

(12) Reason: thyristor excitation installation can not be excited.

Disposal: Check whether there is remanent voltage in the main engine. If not, magnetization should be applied to the rotor excitation winding, or check whether the trigger can work.

(13) Reason: thyristor trigger does not work.

Solution: Check whether the AC power supply can be put in.

(14) Cause: the remanence of the generator disappears, or the remanence is too small.

Disposal: Re-magnetize with DC power supply.

Jiangsu Meao Power Technology Co., Ltd. is an important manufacturer of diesel generators. The company mainly manufactures and sells diesel generator sets with power of 3-3000kW, mobile power station of 24-600kW, Marine emergency diesel generator set of 24-800kW, gas generator set, heavy oil generator set and all kinds of imported series, special series (trailer, static speaker, mobile lighthouse, container, etc.) diesel generator At the same time, we are engaged in generator set maintenance and after-sale service of generator set accessories.