Jump monitoring circuit for relieving circuit heat generating by utilizing relay switching
A jump monitoring and relay technology, applied in relays, circuits, circuit devices, etc., can solve the problem of jump monitoring loop resistance heating and other problems, achieve the effect of simple and reliable switching circuit, ensure reliability, and avoid long-term electrification
Active Publication Date: 2021-01-22
XUJI GRP +3
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Problems solved by technology
[0005]
Aiming at the problems existing in the prior art, the present invention provides a position-jumping monitoring circuit that utilizes switching of relays to alleviate circuit heating. By switching relays, the problem of serious heating of resistance caused by long-term electrification of the position-jumping monitoring circuit is solved.
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[0025] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in combination with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are exemplary only, and are not intended to limit the scope of the present invention. Also, in the following description, descriptions of well-known structures and techniques are omitted to avoid unnecessarily obscuring the concept of the present invention.
[0026] to combine figure 1 , due to the long-term charging of the jump monitoring circuit, the voltage dividing resistor R1 connected in series with the operating mechanism relay will be in a long-term charging state, and the long-term charging of the resistor will cause serious heating. The present invention adopts the method of relay switching to alleviate the problem of resistance heating.
[0027] The present invent...
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The invention relates to a jump monitoring circuit for relieving circuit heat generating by utilizing relay switching. The jump monitoring circuit comprises a relay module, a voltage division module,a relay control module, a monitoring module and a main control module, wherein the relay module comprises a control relay, the on-off of the control relay is controlled by the main control module, thevoltage division module comprises a first resistor unit and a second resistor unit which are connected in parallel, the first resistor unit is connected in series with one group of normally closed contacts of the control relay and then is connected in series with an operating mechanism for voltage division, the second resistor is connected in series with the other group of normally open contactsof the control relay and then is connected in series with the operating mechanism for voltage division, and the monitoring module is connected with the voltage division module and the operating mechanism in series, monitors the state of the operating mechanism and sends the state to the main control module. According to the invention, by switching the divider resistors, the divider resistors are prevented from being electrified for a long time and generating heat seriously, so that the reliability of jump monitoring is ensured.
Description
technical field [0001] The invention relates to the technical field of relay protection, in particular to a bit-jump monitoring circuit that utilizes relay switching to alleviate circuit heating. Background technique [0002] In the relay protection, the tripping position monitoring circuit has a wide range of applications. In the trip monitoring circuit, a part of the circuit is directly connected to the positive control power supply and the negative control power supply, causing this part of the circuit to be charged for a long time, and this part of the circuit will be installed with a resistor with a large resistance because it needs to divide the voltage of the relay. , Long-term live work will cause serious heating of the large resistor, which may cause damage to the resistor and affect the normal operation of the circuit. [0003] In existing skip monitoring loops, such as figure 1 As shown, the control power supply is being connected to the jump monitoring circuit,...
Claims
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Patent Timeline
Login to View More IPC IPC(8): H01H47/00H01H47/24H01H47/32H02H1/00
CPCH01H47/002H01H47/32H01H47/325H01H47/24H02H1/00
Inventor 王瑞郭震靳鹏飞
Owner XUJI GRP