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Introduction to motor winding insulation drying method

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Dc arc welding machine with dry more complex, and requires the maintenance personnel can participate in, only to overhaul after the boot.

Now commonly used 10 kw electric furnace heated baking in wind tunnel. If the unit idle, the time required for six to eight days, if the machine stop, the time required for 10-15 days. Downtime is a bit long, insulation way of be affected with damp be affected with damp be affected with damp be affected with damp from the surface to be affected with damp be affected with damp, internal surface method is used in heating, heating up slowly, the time is long, but it can be finished by running the attendant independence.

Short circuit operation is a special operation mode of the generator, direct use of generator short-circuit current from internal heating dry, current flows through a conductor can be up to the rated current of the generator, large current, temperature rise fast, can make motor winding insulation to achieve in a short time.

Short circuit drying problems are as follows:

1. generator cologne mass flowmeter to short circuit operation has no experience;

2).excitation device can be safe and reliable to provide insulation ladder rotor excitation current;

3).generator short circuit operation, attendant should be able to regulate and feasible operation;

4. protection, instrument to monitor whether meet the requirements.