Turn off the gate valve (butterfly valve) of the left and right tablet computers of the heat pipe radiator to isolate the oil in the heat pipe radiator from the oil in the tank， so as to reduce the working pressure and leakage. After the leakage location is determined， and then Fushi blue raw materials shall be selected for sealing treatment.
Sound insulation treatment of main engine room the key to sound insulation treatment of dry-type transformer room is to start from three levels: window， ventilation and air exchange port and road surface， and apply sound insulation window， silencing cylinder， floating concrete floor damping pad and other sound insulation and noise reduction commodities to achieve sound insulation effect.
ShelpurTransformer
Avoid inadvertent damage of insulation during maintenance: when repairing the hanging core of power transformer， special attention shall be paid to the maintenance of solenoid coil or insulating waterproof sleeve. If there is scratch damage， it shall be handled properly.
AoliangAnalysis of common faults of oil immersed transformer:
Sound in case of phase failure
In order to better carry out the experiment of power transformer oil， it is necessary to sample the power transformer oil. The sampling work should be carried out on a dry sunny day. The commonly used containers and sampling methods during sampling do immediate harm to whether the specific quality of the oil can be truly reflected. The oil sample for AC voltage withstand test shall not be less than .kg， and the oil sample for simplified experiment shall not be less than kg.
When the full load test is carried out and everything is normal， the load can be connected.
Visual inspection method for transformer inspection
The cross-sectional wiring of transformer input and output power plugs shall comply with the provisions of their current size; It should be equipped according to the current intensity of -A / Min.
agentThe capacity and working voltage are different. The dry-type transformer is generally suitable for distribution equipment. The capacity is generally below kVA and the working voltage is below KV， which also ensures the rated voltage of kV; Oil immersed transformers are generally suitable for distribution equipment.
For no-load impulse closing of transformer， pay attention to the following matters:
Oil immersed transformer operation
The voltage regulating tap changer is not in place or poor
Customer firstThe electromagnetic coil is wound with copper power wire or foil and lifted with glass fiber. The epoxy adhesive does not need filling. The vacuum drying equipment is used for degassing and dehumidification. The overall concrete is poured with high fracture toughness， resistance to short-circuit faults， the transformer can be plugged in for trial operation after careful inspection before capital investment. During the trial operation period，ShelpurPrice of 2000kVA dry type transformer， you must pay attention to the following points. Whether there is abnormal sound， noise and vibration whether there is abnormal smell such as coke smell， and whether there is discoloration caused by partial overheating. Ventilation is good. In addition， we should also pay attention to the following aspects.
The scientific research of power transformer oil is generally carried out according to the way of sampling. What are the common sampling methods and processes?
ShelpurThe method and whole process of taking oil sample of power transformer are as follows:
On load commissioning:
After tightening the loose bolts， seal the flange and solve the bolts that are likely to leak， so as to achieve the goal of complete treatment. Tighten the loose bolts strictly according to the actual operation and processing technology.