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Electric power tunnel cable temperature control system and method

A technology of temperature control system and power tunnel, applied in the direction of temperature control, control/regulation system, non-electric variable control, etc., can solve the problem that the temperature cannot be lowered quickly, and achieve the effect of ensuring normal operation

Active Publication Date: 2016-02-03
SHANGHAI MUNICIPAL ELECTRIC POWER CO +1
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Problems solved by technology

[0003] Because there are many cables arranged in the power cable tunnel, a lot of heat will be generated during work. When the temperature is too high, the cable fan outside the power cable tunnel will ventilate to take away the heat generated by the cables, thereby reducing the temperature of the cables. temperature, however, because the current cable temperature control system only monitors the temperature of the cable in real time, and only performs cooling when the cable temperature exceeds the set value, it will be very passive and the temperature cannot be lowered quickly

Method used

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  • Electric power tunnel cable temperature control system and method

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Embodiment

[0021] A power tunnel cable temperature control system, the system includes a current transformer, a control cabinet, a tunnel fan and a temperature sensor, and multiple current transformers and temperature sensors are installed, respectively, on the power tunnel cable through hoops, and the control cabinet They are respectively connected with the current transformer and the tunnel fan, and the tunnel fan is arranged at the tunnel mouth and ventilated to the inside of the power tunnel through the ventilation pipe.

[0022] A method for controlling the temperature of a power tunnel cable, comprising the following steps:

[0023] 1) Obtain the historical current amplitude and temperature data of all cables in the power tunnel, and draw the current amplitude-temperature diagram according to the historical current amplitude and temperature data;

[0024] 2) if figure 1 As shown, the delay value of the current amplitude and cable temperature change is obtained according to the cur...

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Abstract

The invention relates to an electric power tunnel cable temperature control system and method. The system includes current transformers, a control cabinet, a tunnel fan and temperature sensors, the plurality of current transformers and temperature sensors are hooped on an electric power tunnel cable through ferrules, the control cabinet is connected with the current transformers and the tunnel fan, the tunnel fan is arranged at a tunnel portal, and the inside of the electric power tunnel is ventilated through a ventilation duct. Compared with the prior art, the electric power tunnel cable temperature control system provided by the invention has the advantages of prejudgment, good effect and the like.

Description

technical field [0001] The invention relates to the field of power cable detection, in particular to a power tunnel cable temperature control system and method. Background technique [0002] The power cable tunnel is a fully enclosed underground structure that accommodates a large number of cables and has passages for installation and inspection. It is suitable for power main lines with low groundwater level and concentrated cable lines, and generally more than 30 power cables are laid. [0003] Because there are many cables arranged in the power cable tunnel, a lot of heat will be generated during work. When the temperature is too high, the cable fan outside the power cable tunnel will ventilate to take away the heat generated by the cables, thereby reducing the temperature of the cables. Temperature, however, because the current cable temperature control system only monitors the temperature of the cable in real time, and only performs cooling when the cable temperature ex...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D23/20
Inventor 周韫捷何磊张永康沈磊陆青蔡龙晟张圣甫
Owner SHANGHAI MUNICIPAL ELECTRIC POWER CO
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