Closing failure control method and device of induction current quick release device
A technology of induction current and release device, which is applied in the direction of circuit devices, emergency protection circuit devices, parts of emergency protection devices, etc., can solve problems such as faulty phase closing failure, equipment damage, etc., and achieve the effect of ensuring safety
Active Publication Date: 2021-02-09
NR ELECTRIC CO LTD +1
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Problems solved by technology
[0003] The induced current quick release device generally discharges the current by closing its knife switch, and the faulty phase may fail to close during the closing process. If the normal operating line is not cut off in time, the faulty phase of the faulty line may continue to provide induction Current ablation of the pipe gallery, so it is necessary to configure the corresponding closing failure control method to cut off the operating line that induces current to the fault line
[0004] Aiming at the problem of closing failure control of the induction current release device, it is generally necessary to artificially shut down the normal operation of the line according to the closing situation, but cannot automatically complete the control based on the closing situation, which increases the risk of equipment damage caused by the closing failure
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Embodiment 2
[0046] figure 2 It is a schematic diagram of the distributed implementation of the closing failure control method in the embodiment of the present invention; figure 2 A specific embodiment 2 of a method for controlling the closing failure of an induced current quick release device according to the present invention is introduced. This method comprises the steps:
[0047] Step 1. Collect the position of the circuit breaker on the current side of the transmission line, and judge whether it is closed.
[0048] like figure 2 As shown, the II circuit is used as the main line of the transmission line, and the I circuit is used as its adjacent line. Taking the M side as an example, the position of the circuit breaker on the M side is collected. When T BA = 0, T BB = 0, T BC = 0, H BA = 1, H BB = 1, H BC =1, it is judged that the circuit breaker is closed.
[0049] Step 2. Collect the position of the circuit breaker on the side of the transmission line of the adjacent line...
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The invention discloses a closing failure control method and device of an induced current quick release device, which realizes automatic cutting of the running line according to the start-up closing failure signal of the induced current quick release device of the adjacent transmission line pipe gallery and the position of the transmission line, which can Avoid the risk of breakdown of the components of the faulty line pipe gallery due to the untimely release of the induced current generated by the operating line, and at the same time bring safety guarantees to the maintenance.
Description
technical field [0001] The invention belongs to the field of electric power system and automatic control thereof, and relates to a closing failure control method and device of an induction current quick release device. Background technique [0002] The construction of double-circuit or multi-circuit transmission lines has been widely used in practical projects. It can make full use of limited transmission corridor resources, reduce the occupied area, and greatly improve the transmission capacity of the power system. However, in the laying process of some existing transmission lines, tunnels and closed GIL corridors are required to complete the process of crossing rivers or seas. When a fault occurs in the pipe gallery section, although the line protection of the pipe gallery section can be tripped, after the three-phase trip of the circuit breakers on both sides, due to the coupling of the capacitance and inductance of the other or more circuits of the transmission line duri...
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IPC IPC(8): H02H1/00H02H7/26
CPCH02H1/0061H02H1/0092H02H7/261
Inventor 谢华赵青春王玉龙刘奎徐海洋张洪喜张宇驰张春合
Owner NR ELECTRIC CO LTD