Mobile integrated test power supply device

Abstract

The invention discloses a mobile integrated test power supply device. The mobile integrated test power supply device comprises a lithium ferrite battery power supply loop, wherein an output end of the lithium ferrite battery power supply loop is connected with input ends of a DC12V / DC110V boost loop and a DC12V / AC220V inversion loop respectively, an output end of the DC12V / DC110V boost loop is connected with an input end of a DC110V / AC380V inversion loop, an output end of the DC110V / AC380V inversion loop is connected with input ends of an AC380 / DC22V rectification loop and an AC380V / AC100V buck loop respectively, an output end of the DC12V / AC220V inversion loop is connected with input ends of an AC220 / AC24V buck loop and an AC220V / DC48V rectification loop respectively, and the output end of each loop is connected with a contactor switch and is used for outputting a DC12V, DC110V, AC220V, AC380V, DC220V, AC100V, AC24V or DC48V voltage. By implementing the mobile integrated test power supply device, the mobile integrated test power supply device can be applied to various application occasions and has the characteristics of application flexibility, portability, safety and the like.

Description

technical field [0001] The invention belongs to the detection field of electric equipment, in particular to a mobile integrated test power supply device. Background technique [0002] In recent years, with the addition of technical transformation and repair projects in various substations, inbound construction projects have increased, and maintenance power supplies are frequently used in various substation locations. The way to obtain and repair the power supply is generally to lead the cable, which has the following disadvantages: [0003] On the one hand, the location of the maintenance power box installed in the station is limited and fixed, and cannot cover all locations in the station. The use of the power supply in the box often requires long-distance cable connections, which brings inconvenience to on-site construction. Especially when the construction site is located in a remote location such as the roof of the substation or a wall, it will be very difficult to lead...

AI Technical Summary

Problems solved by technology

[0003] On the one hand, the location of the maintenance power box installed in the station is limited and fixed, and cannot cover all locations in the station. The use of the power supply in the box often requires long-distance cable connections, which brings inconvenience to on-site construction

Especially when the construction site is located in a remote location such as the roof of the substation or a wall, it will be very difficult to lead the power supply

[0004] On the other hand, drawing lessons from the experience of safety accidents in substation external construction units using maintenance power supplies, the reason is that the distance between the long-distance cable leading to the maintenance power supply and the transformer incoming line is too close, which generates induced voltage and leads to cable discharge.

This shows that the long-distance cables leading to the maintenance power supply are likely to generate induced voltages with other live equipment, resulting in safety risks; in addition, cable dragging, entanglement, and insulation damage may also bring personal and equipment safety risks at the construction site, etc.

[0005] In addition, apart from the use of power boxes for maintenance and testing, the use of generators as power supplies for maintenance is also increasing. When small-scale maintenance, protection, high-voltage and other tests use electricity, connecting the generator will waste resources, which is not conducive to environmental protection, and may even cause safety hazards. risk

[0006] Finally, there are risks of insulation damage and leakage protection function failure in some old-fashioned maintenance power supply boxes. Once a short-circuit fault occurs on the construction site, it will cause the switch in the box and even the station power incoming line switch to trip over the level, causing the station power bus to fail. pressure risk

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