|
|
Build Your Online Product Catalogs?
At present, the contact resistance measurements of the conventional type QJ44 arms widely used in electric power system dc bridge, and the Test of this kind of bridge current only mA level, it is difficult to find circuit conductor cross-sectional area to reduce defects, when measuring contact resistance high-voltage switch electric circuit, due to the contact between the oil film and the influence of the oxide layer, several times the measured value is big, can't reflect real contact resistance.Therefore, the standard sd301-88 ac 500kV power equipment handover and preventive test regulations and the new version of preventive test regulations for power equipment stipulate that the measuring current of circuit breaker and isolating switch contact resistance is not less than dc 100A to ensure the accuracy of test results.
The switchMicro Ohmmeter produced by Wuhan UHV is designed by combining high-frequency switch The Power supply technology and digital circuit technology in accordance with The implementation standard DL/ t845.4-2004 of new Electric Power of The People's Republic of China.The switchMicro Ohmmeter is suitable for the measurement of resistance in the circuit of switch control equipment.The instrument is accurate in measurement and stable in performance. It meets the requirements of high voltage switch maintenance and resistance test of high voltage switch factory circuit. |
| Company: |
Wuhan UHV Power Technology Co.,Ltd.
|
| Contact: |
Ms. Tina Qiao |
| Address: |
Building 6, Optics Valley Optical-Mechanical Industrial Park, 84 Gaoxin 5 Road, East Lake New Technology Development Zone, Wuhan |
| Postcode: |
430200 |
| Tel: |
15871365102 |
| Fax: |
|
| E-mail: |
|
|
|
|
Home
