Leakage monitoring and protection device for generator casing, and using method thereof

Abstract

The invention discloses a leakage monitoring and protection device for a generator casing, and a using method thereof, comprising a leakage detecting device, an insulation resistance measuring mechanism, an insulation resistance comparing mechanism, a control mechanism, an alarm device, and a moisture removing mechanism, wherein the leakage detecting device is connected with the generator casing,the insulation resistance measuring mechanism is connected with the insulation resistance comparing mechanism, the insulation resistance measuring mechanism measures the insulation resistance values between each of the generator windings and the generator casing, and the control mechanism is respectively connected with the leakage detecting device, the insulation resistance detecting mechanism, the insulation resistance comparing mechanism, the alarm mechanism, and the moisture removing mechanism. The invention is capable of detecting the leakage condition of the generator casing in real time,automatically activating the dehumidification mechanism to dehumidify when the leakage occurs, and using the short-circuit current generated in the excitation magnetic field and the stator winding ofthe generator to generate heat and dry, thereby improving the insulation resistance values between each of the windings of the generator and the generator casings, and well ensuring the insulation safety of the generator casing.

Description

technical field

[0001] The invention relates to the field of motor equipment, in particular to a generator casing leakage monitoring and protection device and a use method thereof. Background technique

[0002] During the operation of the generator, it is inevitable that there will be leakage on the generator casing. The generator after leakage will reduce the working capacity of the motor, and there will be a risk of electric shock when people touch the generator, which will affect work safety and is not conducive to Production. The most common reason for the leakage of generator casing is that the generator is damp. Electrical appliances may be affected by moisture during use, especially those used in humid environments. Splashing rainwater or moisture from condensation, for example, can penetrate generators, especially when the generator is in intermittent operation. If the water or moisture cannot be discharged in time, the generator will be damp. Moisture is a deadl...

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