In EHV environment, there will be a great electromagnetic interference. Therefore, Gridwell tested different EHV levels in high voltage environment with the highest test exceeding 600 kV, which ensures excellent communication quality and stabile operation of transmission line monitoring devices.
Impulse Voltage Test
Because there are frequent stroke-incidence events in the transmission network, and the surge voltage may cause damage to the transmission line components. In order to test the EHV surge tolerance of the transmission line monitoring devices and internal circuits, Gridwell tested lightning surge voltages up to ± 1500 kV to ensure that the equipment has sufficient capability to deal with lightning strikes in nature.
High Current Test
Current is one of the most important factors that affect the operation stability of transmission line monitoring devices. Gridwell tested the transmission line monitoring device can operate stably under the line current from 0 to 2000A.
Wind Tunnel Test
Gridwell tested the transmission line monitoring device under strong wind, in order to ensure that the transmission line monitoring device installed will not deform, loose, fall off, etc., The devices are tested under different levels of wind speed, which maximum to Super Typhoon, 17 Beaufort wind force scale(wind speed: 60 m / s).
The company uses the TAF certified constant temperature and humidity machine to test the transmission line monitoring devices. The machine simulated the outdoor harsh climatic conditions to make sure our transmission line monitoring devices will not affected by dramatic changes in ambient temperature and high humidity interference.