Application and working condition of high voltage pick-up device

High-voltage induction power take-off device is a new type of induction power take-off device that uses the electromagnetic energy induced around high-voltage transmission lines to obtain electrical energy. This device converts the electromagnetic energy around the transmission line into electric energy, providing stable power supply for the electrical equipment installed in the vicinity. It can ensure the long-term stable power supply of the load equipment, and is suitable to be used as the power supply device for on-line testing, monitoring, inspection, anti-theft and other electrical equipments on the high-voltage transmission line.

TLTP series of high-voltage induction power supply device is a split installation, consisting of split core energy harvesting currrent transformer (TLTP-CT) and induction power supply module (TLTP-PM) two parts, split core energy harvesting current transformer can be directly suspended in the transmission line, can also be installed in the cable trench, the induction power supply module can be integrated with the user's equipment design, common equipment chassis. This device is suitable for 10kV, 35kV, 110kV, 220kV, 500kV and other voltage levels of high-voltage transmission lines. Split high-voltage induction power taking device is mainly used to provide long-term stable power supply for outdoor power line online detection device, line equipment anti-theft device, high-voltage line filth online monitoring device and other power equipment.

This device consists of energy extraction coil, energy extraction power control circuit, energy storage circuit, voltage regulator circuit, etc. The circuit composition is shown in the figure;

According to the size of the current on the transmission line, the high-voltage induction power taking device has three working states:

1, the current on the transmission line is very small, not enough to make the circuit work, the device is in the un-started state, not on the load output voltage and power.

2, the current on the transmission line is large enough, or even very large: at this time, the power taking power control circuit to control the power to take energy, after the energy storage circuit is full of energy, the power obtained is equal to the power consumed by the load. Strictly limit the excess energy into the circuit, to protect the normal operation of the circuit.

3, the current on the transmission line can make the device start working, but the energy obtained is less than the power of the load: the circuit is in intermittent operation. At this time, the circuit to take the maximum efficiency of the energy, and charge the energy storage circuit, in the energy storage circuit to store full energy before the first not to the load output voltage and power, when the energy storage circuit to store full energy, and then to the load power supply.

Note:

When designing and selecting or purchasing, be sure to clarify the following parameters:

1. High-voltage induction power device power requirements, that is, the maximum power consumption of user equipment.

2. The rated output voltage requirements.

3. The diameter of the transmission line, the line of normal operating current range and the maximum operating current.

4. Installation requirements: indoor, outdoor installation, hanging, placing installation.

5. Power supply interface or power output cable length requirements.

6.If you need to configure lithium battery pack, please specify the optional battery capacity (ampere-hour).

Read more:  https://www.hemeielectricpower.com/