A test must be carried out. Huatian Electric Power Video Zhang said that the generator stator core is assembled by stacking silicon steel sheets. There may be poor quality due to manufacturing and maintenance, or due to thermal and mechanical stress during operation. This will damage the insulation between the sheets, resulting in a short circuit and local overheating in the short circuit area, endangering the safe operation of the unit. Therefore, a stator core loss test should be performed during handover or operation.
DC motor losses include stator loss, rotor loss, iron loss, parasitic loss, and wind and friction loss.
A DC motor is a rotating electrical machine that can convert DC electrical energy into mechanical energy (DC motor) or energyie mechanics in direct current electrical energy (direct current generator). It is a motor that can realize mutual conversion of DC electrical energy and mechanical energy. When operating as a motor, it is a direct current motor, which converts electrical energy into mechanical energy; when operating as a generator, it is a direct current generator, which converts mechanical energy into electrical energy.
Detailed information:
The structure of a DC motor should consist of two main parts: the stator and the rotor. The stationary part of the DC motor when it is operating is called the stator. The main function of the stator is to generate a magnetic field. It consists of a base, a main magnetic pole, a switching pole, an end cover, a bearing and a brush device. The part rotating during operation is called rotor. Its main function is to generate electromagnetic torque and induced electromotive force. It is the hub for the energy conversion of the DC motor, which is why it is generally called the armature. Armature core, armature winding and commutator consisting of baffle and fan.