After a period of storage, transport, change of season or long rest periods of electric motors, it is necessary to put them into operation. The correct start-up depends on many things: life schemes, performance protection and control, the number of subsequent repairs, etc. The operation of the machine starts with a commissioning. They should be organized on the basis of official instructions. Each company has its own way of referring to their behavior. But the main work, before the first start of the common equipment for most cars:
- First of all, the organizational activities are carried out: the issuance of the work permit, or to carry out these works, product briefings and the necessary approvals, were part of the brigade.
- After that, the responsible personnel make the necessary equipment and impose protective earth on the line.
- checking the absence of voltage with the help of both instruments, as well as the contact with the live parts.
- You can then check the electric motor. We will start with the visual inspection and verification of the rotor. The shaft must be slightly hand-scrolled, or, in the case of heavy commercial vehicles, otherwise. At the same time, there should be no foreign sounds in the bearings. Check the availability of the required lubrication of the brand and replace it if necessary.
- Now we will remove the barno and check the absence of voltage on the power cord and power supply circuits anti-condensation coil. Disconnect the power cords from the device.
electric motor preheater
- Remove the copper connector and check the strength of each micrometer winding. It should be the same, it should not differ from the nameplate. We are testing high voltage windings with a special tool. If everything is in order, collect the necessary winding circuit.
- Also check the electric motor preheater and restore the circuits.
- A similar system check thermistors. After the end of the test work note the torque tightening screw and no foreign objects in the barns.
- Close the lid. If the electric motor has an antiex version, check the availability of special seals and lubrication. All screws must be tightened to the correct torque.
DC electric motor remains to check the address line and test increased stress. If all parameters are normal, you can do with a control and protection circuits. Each electric motor must be protected with respect to the basic parameters: permissible overcurrent, overvoltage, etc. After checking the performance of the control and protection system recovers all switching and make a test run.
It should also be noted that other types, for example, a DC motor similarly checked. The small differences in testing and preparation for launch depend on these or other requirements of different companies.