Baoding dry type transformer is a transformer with iron core and windings not impregnated in insulating oil. Baoding dry type transformer in operation is generally no noise, but sometimes there will be noise, this indicates that there may be a fault.

Reasons and solutions for operation noise of baoding dry type transformer:

1. Transformer core self-resonance
Reason: there is magnetic attraction between the joint of silicon steel sheet and lamination due to magnetic leakage.
Judgment method:
1) the transformer noise is relatively large, and other noises are mixed with normal noises.
2) the noise of the transformer is wavy.
Solutions:
1) tighten the screws on the transformer, including the two ends of the clamp screws, piercing screws, and the pad pressing the oncomelania thread.
2) add shockproof rubber pad under the transformer trolley to solve part of the noise.

2. Transformer coil self-resonance
Reason: when there is a load current passing through the winding, the magnetic leakage generated by the load current causes the winding vibration
Judgment method:
1) the transformer noise is relatively high and low.
2) when the load of the transformer reaches a certain level, it will start to make noise, sometimes it will appear and sometimes it will not.
Solutions:
1) tighten all the oncomelania snail wires with the pad block to increase the axial compression force of the coil.
2) loosen the oncomelna wire with the pad block, loosen all the bolts on the copper strip and the zero wire copper strip, shake the low-voltage coil, shift the high-voltage coil by 3-5mm, and then tighten all the bolts.

3, the nature of the load
Cause: the transformer voltage waveform distortion (such as resonance phenomenon), produce noise.
Judgment method:
1) noise in addition to the transformer itself noise, but also mixed with "gurgling, gurgling" noise.
2) in the process of operation, the transformer noise will increase sharply and return to normal soon.
3) check whether there is rectifier equipment and frequency conversion equipment in the load.
Solution: users can consider adding harmonic reduction device.

4. Phase missing problem of transformer
Reason: transformer can not be normal excitation, noise.
Solutions:
1) transformer power failure, check whether the power supply is missing one phase;
2) check whether the transformer high-voltage fuse fuses one phase;

5. Poor contact
Reason: it is as a result of bad contact inside the high voltage cabinet. Second, the blade is not in place
Judgment method: the transformer makes off and on abnormal noise.
Solutions:
1) check the contacts and fuses of the high voltage cabinet and the entire high voltage circuit.
2) please ask someone from the high-voltage cabinet manufacturer to check it.

6. Suspension potential problem
Reason: the clamps channel steel of transformer, pressing bolt, pull plate and other parts are sprayed with blue paint, the contact between parts is not very good, under the action of leakage magnetic field, there is a sound of suspended potential discharge between parts.

Baoding zhongyi electric material manufacturing co., LTD. Is a professional transformer manufacturer in baoding transformer factory. It has professional production equipment, lifting equipment, tooling and testing equipment.

Main products: baoding dry type transformer, baoding box type transformer, baoding oil immersed transformer, baoding high and low voltage complete sets of equipment, etc. I companies to follow "detail decides success or failure, honesty molded the future" of the enterprise purpose, adhere to "quality measuring market, seek development by innovation, to management for efficiency" business philosophy, to make my company's products are widely used in power plant, chemical, construction, mining, metallurgy, rail transportation and other industries, to meet the needs of various users, my company rely on superior product quality, thoughtful service, won the trust of our customers.