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Being the most advanced national testing & research center of HVAC & HVDC, XD Group collaborates & cooperates extensively with other international companies. XD Group is the member of IEC and CIGRE and is appointed as the national center by the state for the IEC TC17 committee.

With our advanced technology, human resources, top-ranking testing equipment and abundant experience in manufacturing, XD group is working on developing the products for 750kV UHVAC.

The maximum testing capacity is as below.
Heavy current test: 20kA power frequency current, 140kA rated short-time withstand current (4s, peak) and 350kA rated peak with stand current for long-term temperature rise test;
High power test: Whole (single) pole synthetic test for 500kV 63kA circuit breaker and all kinds of tests for 500kV apparatus can be made;
HV test: test on AC transmission and distribution equipment with the highest voltage up to 1000kV, and test on DC transmission equipment with the highest voltage up to ¡À600kV.


Oscillating Circuit


Surge Generator for Short Circuit Test


Artificial climate chamber with three parameters 8m in dia. 8m hig


1500kV DC voltage generator


2250kV power-frequency testing transformer

 


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