Installation device and method for OPGW terminal reservation cable of transformer substation

Abstract

The invention discloses an installation device for an OPGW terminal reservation cable of a transformer substation. According to the installation device, the problems of inter-turn contact discharge and electric corrosion strand breakage caused by inter-turn induced electricity of an OPGW wound in an OPGW terminal reservation disc of an extra-high voltage, super-high voltage or high voltage transformer substation are completely solved; the safe operating rate of the OPGW terminal reservation cable of the extra-high voltage, super-high voltage or high voltage transformer substation is improved; a hidden danger of electric grid optical cable backbone line equipment is eliminated; the safe operating rate of an electric grid is increased; maintenance work at an optical cable is reduced; the operation and maintenance cost of an electrical network enterprise is greatly reduced; moreover, site construction is convenient and simple and is easy to realize. The installation device comprises a waterproof coating material, an insulating protective sleeve and thermal shrinkage treatment equipment; the tail end of the OPGW terminal reservation cable is coated with the waterproof coating material or wound with an insulating adhesive tape; the insulating protective sleeve is arranged in the part which is coated with the waterproof coating material in a sleeving manner, and is subjected to thermal shrinkage treatment through the thermal shrinkage treatment equipment, so that the air in the insulating protective sleeve is eliminated. The invention further provides a method.

Description

technical field [0001] The invention relates to the technical field of power systems, in particular to a device and method for installing reserved cables for OPGW terminals in substations, which are mainly used in ultra-high voltage, ultra-high voltage and high-voltage substations of power systems. Background technique [0002] With the continuous development of society, electric power has become an indispensable energy source for people's production and life, so the technical development of substations closely related to electric power has attracted more and more attention. [0003] At present, the outer structure of OPGW (Optical Fiber Composite Overhead Ground Wire, optical fiber composite overhead ground wire) optical cable in ultra-high voltage, ultra-high voltage, and high-voltage substations in domestic and foreign power systems is aluminum-clad steel bare stranded wire. Since the OPGW optical cable is erected on the same pole on the upper part of the transmission lin...

AI Technical Summary

Problems solved by technology

Since the OPGW optical cable is erected on the same pole on the upper part of the transmission line tower, the transmission line will generate induction electricity to the OPGW optical cable. When the OPGW optical cable enters the substation, it will generally be introduced into the reserved cable fork and wound 4-10 times. OPGW optical cable has inter-turn contact, and OPGW optical cable induces electricity to cause inter-turn contact discharge and electric erosion to break the strands.

If there is a risk of broken strands in the OPGW optical cable in operation, it will cause major equipment hidden dangers to the optical cable lines of the power grid, directly threatening the safe production of the current smart grid

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