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At present, the widely used power supply mode is solar power supply, but this mode is greatly affected by climate conditions and lacks long-term maintenance free capacity. Laser power supply has been used in electronic current transformer and active optical current transformer, but this kind of power supply is not suitable for field work. The more promising power supply mode is to extract electric energy from overhead transmission line, place an energy coil on the line, convert the energy of the line to the secondary side, and realize isolated power supply.
Power equipment installed on the high-voltage side of high-voltage transmission line: conductor temperature, aeolian vibration, secondary pitch oscillation tension, icing monitoring device, etc. of high-voltage overhead transmission line.
Power equipment that is difficult to obtain power near the high-voltage transmission line: various monitoring equipment on the underground power cable line, monitoring equipment in the ring network cabinet, etc.
Inductive energy extraction, stable, safe and maintenance free
Open energy acquisition transformer, easy installation and simple wiring
The energy acquisition module adopts metal shielding packaging, with good sealing performance, adaptability to harsh environment and stable operation. It can maintain stable output when the line current changes. The standard design of switching voltage stabilization is adopted. The output voltage is stable and the ripple is small. The output power can reach more than 300W
It can work continuously under 3000A current
It can be installed on transmission lines with any voltage level from 6kV to 500kV. The battery pack is optional to maintain normal use in case of power failure.
The energy acquisition device of transmission line is composed of energy acquisition transformer and energy acquisition power module.
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