2. The ultra-low frequency test device is composed of operation control and high voltage power supply, on-site operation is light and convenient, there is no "breaking" effect on the cable, and it can be used as a test method for rubber cables. The current technical limitations make it mainly used for less than or equal to 35kV. The cable test.
3, frequency conversion resonance test device consists of variable frequency power supply, excitation transformer, resonant reactor, voltage divider, less than or equal to 35kV cable using this method is more troublesome on-site operation, greater than or equal to 66kV cable can use this method as a field test method .
4. For cables larger than or equal to 110kV, the oscillating voltage method is small in size and convenient for on-site operation, but whether it can have the effect of ultra-low frequency and frequency conversion resonance test has yet to be verified.
5, partial discharge test can only detect the special part of the cable (intermediate connector, terminal, etc.), for the cable greater than or equal to 110kV, it is necessary to carry out this test on site.
6. The dielectric loss measurement method is almost useless in the field because of its own limitations.
The 60 Portable Concrete Batch Plant equipment developed by Shine machinery is a Concrete Plant that can produce 60 cubic per hour. It is arranged top-and-down in line with production process. The energy consumption is relatively low and it is not strict with floor space. Small cross-contamination of raw materials is generated; the large-size appearance applies to the production of ordinary and special mortar. It has man-machine interfaces, high-speed and high-precision weighing units and international famous low-voltage electrical components.
60 Portable Concrete Batch Plant
60 Portable Concrete Batch Plant,Mobile Mixing Plant,Mobile Mixing Plant Equipment,Mobile Concrete Batch Equipment
Shandong Shenghuai Trading Co., Ltd. , https://www.shinebatchplant.com