Test transformer type YDQ Manual充气式试验变压器英文说明书

充气式高压试验变压器英文说明书Test transformer type YDQ Manual  
Wuhan China Meilun electric power technology Limited company     tel:0086 027-59528838   fax:027-59840338
I. Overview:
Power transformer test equipment, testing and preventive trial of the test equipment necessary. As China＇s power industry development of the voltage transformer test is also getting higher and higher level, while the traditional test of oil-immersed transformers, both in size and weight or performance are increasingly unable to meet work-site requirements.
With the progress of China＇s basic scientific research, new materials, new technology applications, the new medium of sulfur hexafluoride gas into the electrical equipment applications. Sulfur hexafluoride gas as a result of excellent performance and interrupter insulation performance, and flame, making it as a new insulation has been widely used medium.
After many years of our efforts to study the success of the inflatable pilot light transformer, the series of products with the traditional test of oil-immersed transformers light compared to reduce weight by 20% -60% (depending on voltage and capacity levels may be) , and no oil pollution, a single test voltage transformers up to 300KV. As a result of new production processes, products, technology has greatly improved performance, especially for frequent on-site work and the working conditions of mobile use.
Second, the structure of:
1, YDQ products of its design, material selection and processes are new. So not only small size, light weight, form the United States, and various technical indicators have reached <> standards.
YDQ products using DQ-151 high-quality cold-rolled silicon steel sheet orientation叠成multi-stage cylindrical box-shaped core, in a special high-strength insulation tube QZ-type wire used for winding high-voltage direct coil tower. Is a conformal shell size, filled with SF6 gas.
2, YDQ (JZ) products and different products YDQ is cleverly stowed high voltage silicon rectifier sets of high pressure through a short circuit under the insert and extract YDQ convertible is the exchange of the output frequency or high-pressure high-voltage DC output.
3, YDQ (C) products and products YDQ casing structure is different.
Third, model meanings:
        Y D Q (JZ)
Rated output voltage KV
Rated capacity
AC-DC JZ, Cascade
Inflatable
Single-phase
Test Transformer
Fourth, it works:
Power input to flow automatically to prevent the sudden release and the zero pressure device Chain operation boxes, by auto-regulation of voltage input regulator YDQ test transformer primary winding, in accordance with the principle of electromagnetic induction in the secondary (high voltage) Winding its winding turns and the primary access to the same multiple of the ratio of the voltage amplitude - frequency high voltage. This high-frequency high-voltage silicon heap by the rectifier and filter capacitor voltage regulator can be made high-voltage direct current, the amplitude-frequency high-voltage RMS is 2 times.

5, control circuit diagram:


5-1: General circuit diagram console: as follows
 
Sixth, the test site layout
  
1, AC voltage withstand test wiring diagram
 

Remarks: 1, K1, K2 for the low-voltage terminal.
2, K3, K4 column for the high-pressure end (for me to operate as a grounding terminal K5).
3, G for the exchange of high-voltage output.
4, our company supplies gas YDQ transformer contains only the main transformer and control box, if current-limiting resistors, such as ball-gap accessories please another.
5, tests the main transformer, control box and the high-pressure tail, one meter to a good ground, otherwise damage equipment and endanger their personal safety.



2, DC voltage withstand test wiring diagram


 
Remarks: 1, K1, K2 for the low-voltage terminal.
2, K3, K4 column for the high-pressure end (for me to operate as a grounding terminal K5).
3, G for the DC high voltage output.
4, DC test, the company should be equipped with the rectifier silicon reactor installed in the transformer high-voltage output of the above to ensure that the transformer output to DC.
5, the supply of our gas YDQ transformer contains only the main transformer and control box, if current-limiting resistors, microamp table accessories, such as discharge wand please another.
6, test, the main transformer, control box and the high-pressure tail, one meter to a good ground, otherwise damage equipment and endanger their personal safety.
7, DC test after discharge wand must be used on the test materials to discharge before they are allowed to root for the lifting of the test materials and connections, whether physical safety hazards.
3, string-induced combination of test access map
1, Cascade Connection
String tests so excited, in which one must then enter the shell, into the same potential

String tests so excited, in which one must then enter the shell, into the same potential
武汉市华电美伦电力技术有限公司英文版说明书-华电美伦电力海外事业部