Visual inspection method for transformer inspection
0Once the insulation material of electrical equipment is overheated， the surrounding gas will cause a kind of odor. This kind of odor can be sniffed out by normal patrol staff. When you smell such odor during normal inspection， you should carefully inspect the equipment and parts with overtemperature until you find out the cause.
zVan StoffOil leakage of cast iron parts
If the input of dry-type transformer is an alternating switching power supply， its output voltage is directly proportional to the coil turn ratio of the output input solenoid coil. If a rechargeable battery is used， because it is DC， add a circuit in the input power supply circuit to change it into a continuously changing voltage. In that way，Product display the alternating DC current can be obtained at the output end.
MTororoProtection mode for type selection of dry-type test transformer
AsIn order to better avoid transmission overvoltage damage，YichunVariable frequency power transformerMarket activity a group of overvoltage maintenance high-voltage Arresters (such as ycs active zinc oxide high-voltage arresters) shall be refitted at the working voltage bus duct side of dry-type transformer.
The common dry-type transformer is an important electrical equipment， and the voltage is constantly regulated. However， because of certain necessity， the dry-type transformer will also boost voltage， and the whole process of boosting voltage is very complex，Power transformer price: 1000KVA, 33kV power transformer, 25kV power transformer, power transformer, oil immersed transformer, dry-type transformer factory and there are many principles.
This is the example of power consumption engineering as power saving. The key reason is that the habitual calculation method ignores the copper loss.
mIf the power transformer stops running for more than h (if the allowable time should be reduced when the ambient humidity is & amp; gt; %) it should be insulated before putting into use， and accurately measured with a V grounding megger. The insulation resistance from the primary side to the secondary side and the ground should be ^ mfl， the insulation resistance from the secondary side to the ground should be ^ mh， and the insulation resistance from the iron core to the ground should be & amp; gt; mfl (note that the grounding device piece should be removed).
PAccurately measure the resistance of each phase winding and carry out the measurement. If there is a great difference， it is a common fault of the winding. Then carry out the appearance inspection of the iron core， and then accurately measure the inter chip insulation resistor by AC voltage and galvanometer method. If the damage is not large，Product display paint the damaged part.
LFocus on DevelopmentHand touch method for transformer inspection
vAThe person in charge of a transformer manufacturer said that because of the hazards of raw materials and other factors， the cost of energy-saving transformers is significantly higher than that of traditional transformers and the price factor is also a key factor endangering the popularization and marketing promotion of energy-saving transformers. Although there are energy-saving and convenient subsidy projects to help energy-saving transformers， the sales market has not been fully operated.
Oil sample inspection & mdash; & mdash; the performance parameters such as compression resistance and residue shall be carried out every three years. The long-term overload or overload of the transformer can reduce the cycle time.
In order to promote the use of energy-saving transformers， the Ministry of finance，YichunVariable frequency power transformerMarket activity the Ministry of industry and information technology and the national development and Reform Commission jointly promulgated the detailed rules for the promotion and implementation of energy-saving distribution transformers of energy-saving products benefiting the people project as early as ， providing subsidies of - yuan / KVA for energy-saving transformers.
superior qualitydAt that time， and the market share of high-voltage transformers was basically monopolized by overseas leaders.
PThe insulating layer shaft and the connecting articles between the bell jar and the core shall be removed. If it is a hanging bell inspection， the flange plate，Product display barrel skin and the middle of the waterproof sleeve at the upper end of the automobile oil tank. The internal iron core and winding clamp are hot due to partial magnetic leakage， resulting in insulation damage.
lEProtection mode for type selection of dry-type test transformer
Precautions for trial operation of power transformer manufacturers