• Name: PD-free HV test transformer(Type YDQW)
  • Products Type: 03

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Product Introduction
The YDQW model non-partial test transformer is a new product which is manufactured on the basis of the YDQ model high voltage test transformer and according to the test transformer national standard DL/T848.2-2004. The product is widely applied to fields of electricity, industrial and mining enterprises, petroleum, chemical engineering, research institutions, etc., and can realize the power-frequency withstand voltage test and partial discharge test of high voltage electric equipment, electric elements and insulating materials, so that it is the indispensable equipment in high voltage test.
 

Product Advantages:
1. The product is small and light (it is 50% lighter than the oil immersed test transformer of the same model), so that it is convenient for transportation;
2. The product is clean, greaseless and convenient for maintenance;
3. The product is free from weather and can be used for testing during transportation;
4. The insulating strength of the product is higher than that of the oil immersed type test transformer, and the corona is extremely low;
5. Because SF6 gas has extremely good arc suppressing performance and a special technological structure, the partial discharge quantity is low and is less than 3pC under the rated voltage;
6. The testing process is simple and direct-viewing, and the operational method is quite simple and practical;
7. The product can effectively eliminate noise interference in the power supply.
 

Product Parameters:
1. The product is small and light (it is 50% lighter than the oil immersed test transformer of the same model), so that it is convenient for transportation;
2. The product is clean, greaseless and convenient for maintenance;
3. The product is free from influence of weather and can be used for testing during transportation;
4. The insulating strength of the product is higher than that of the oil immersed type test transformer, and the corona is extremely low;
5. The complete test device is low in investment, so that it is economical, and it can be connected in series to obtain various output voltages or solely used.
6. Partial discharge: Less than 3pC under rated voltage and less than 2pC under 80% rated voltage.

 

 Equipment Configuration
1.One non-partial test transformer;
2.One test transformer console;
3.One coupling capacitor;
4.One isolating transformer;
5.Current-limiting resistor;
6.One cart (optional);
7.One partial discharge tester (optional).

 

Product Wiring Diagram 

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