Vehicle-mounted movable alternating current ice melting device and method for power distribution network

Abstract

The invention relates to a vehicle-mounted movable alternating current ice melting device and a method for a power distribution network. The ice melting device comprises a transport vehicle used for transporting the ice melting device, an ice melting transformer, a circuit breaker and a short connection conductor, wherein the ice melting transformer is a step-down transformer; an incoming terminalof the ice melting transformer is connected with a power supply; a leading-out terminal of the ice melting transformer passes through the circuit breaker and then is connected with a head end of a freezing line; the short connection conductor is used for short connection with a tail end of the freezing line; the short connection conductor and the leading-out terminal of the ice melting transformer form a closed loop; and the ice melting current is determined according to the ambient temperature, the ice coating thickness, the ambient wind velocity, and the direct current resistance, the positive sequence reactance and the impedance of the conductor of the freezing line, and comprises the anti-icing current, the optimal ice melting current and the maximum allowable current. The ice meltingdevice performs ice melting on the freezing line, is safe and reliable, and saves the manpower.

Description

technical field [0001] The invention relates to the field of power transmission, in particular to a vehicle-mounted mobile AC deicing device and method for a distribution network. Background technique [0002] At present, manual deicing is often used for icing of distribution network branch lines. However, some sections of the line have special terrain, such as valleys and dense shrub forest areas. During the process, personnel safety risks are high, and personal injury accidents are prone to occur. At the same time, the deicing efficiency is extremely low, resulting in a lot of waste of manpower and material resources. Contents of the invention [0003] In order to solve the above problems, a vehicle-mounted mobile AC ice-melting device for distribution network is provided, which includes a transport vehicle for transporting the device, and also includes an ice-melting transformer and a circuit breaker. The ice-melting transformer is a step-down transformer, and the ice-m...

AI Technical Summary

Problems solved by technology

[0002] At present, manual deicing is often used for icing of distribution network branch lines. However, some sections of the line have special terrain, such as valleys and dense shrub forest areas. During the process, personnel safety risks are high, and personal injury accidents are prone to occur. At the same time, the deicing efficiency is extremely low, resulting in a lot of waste of manpower and material resources.

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