CN216625382U - Auxiliary device for remotely controlling working state of secondary equipment - Google Patents

Auxiliary device for remotely controlling working state of secondary equipment Download PDF

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Publication number
CN216625382U
CN216625382U CN202122732795.3U CN202122732795U CN216625382U CN 216625382 U CN216625382 U CN 216625382U CN 202122732795 U CN202122732795 U CN 202122732795U CN 216625382 U CN216625382 U CN 216625382U
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China
Prior art keywords
relay
secondary equipment
power supply
control device
control
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Active
Application number
CN202122732795.3U
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Chinese (zh)
Inventor
廖明山
赖青岚
傅少荣
姚露
余振钊
谢奕强
林如姗
夏宇杰
许丹烽
张孝乾
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Quanzhou Power Supply Co of State Grid Fujian Electric Power Co Ltd
Quanzhou Economic and Technological Development Branch of Quanzhou Yixing Electric Power Engineering Construction Co Ltd
Original Assignee
Quanzhou Power Supply Co of State Grid Fujian Electric Power Co Ltd
Quanzhou Economic and Technological Development Branch of Quanzhou Yixing Electric Power Engineering Construction Co Ltd
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Application filed by Quanzhou Power Supply Co of State Grid Fujian Electric Power Co Ltd, Quanzhou Economic and Technological Development Branch of Quanzhou Yixing Electric Power Engineering Construction Co Ltd filed Critical Quanzhou Power Supply Co of State Grid Fujian Electric Power Co Ltd
Priority to CN202122732795.3U priority Critical patent/CN216625382U/en
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Publication of CN216625382U publication Critical patent/CN216625382U/en
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Abstract

The utility model provides an auxiliary device for remotely controlling the working state of secondary equipment, which comprises a first control device, a first relay, a second control device and a third relay, wherein the first control device is connected with a control terminal through a control cable, a normally closed contact of the first relay is connected between the secondary equipment and a direct-current power supply in series, the first control device controls the on-off of the normally closed contact, a normally open contact of the second relay is used for feeding back the change of the state of the first relay to the control terminal, and the second control device is connected with a power supply end of the secondary equipment and controls the on-off of the normally open contact of the third relay so as to feed back whether the power supply of the secondary equipment is normal or not to the control terminal. The auxiliary device for remotely controlling the working state of the secondary equipment can realize remote restart of the secondary equipment, does not need workers to go to a field for processing, improves the defect eliminating efficiency, and saves manpower and material resources.

Description

Auxiliary device for remotely controlling working state of secondary equipment
Technical Field
The utility model relates to an auxiliary device for remotely controlling the working state of secondary equipment.
Background
The secondary equipment of the substation is used for collecting and monitoring the operation state of the primary equipment, so that the operation condition of the secondary equipment is very important for remote monitoring of the unattended substation. However, due to the operating age or the operating environment, the secondary equipment often has abnormal situations such as device abnormality and communication interruption. The defects of abnormity of secondary equipment devices and communication interruption over the years are summarized and analyzed, and the normal operation can be recovered after the power supply of the secondary equipment is restarted most of the processing modes. And the secondary equipment abnormity belongs to a critical defect, and needs operation and maintenance personnel to perform on-site emergency treatment within 24 hours, so that a large amount of manpower and material resources are consumed, and the defect eliminating efficiency is low.
SUMMERY OF THE UTILITY MODEL
The utility model provides an auxiliary device for remotely controlling the working state of secondary equipment, which can realize remote restart of the secondary equipment without requiring a worker to go to a site for processing, improves the defect eliminating efficiency and saves manpower and material resources.
The utility model is realized by the following technical scheme:
the utility model provides an auxiliary device for secondary equipment operating condition remote control, be used for auxiliary control terminal to restart secondary equipment, secondary equipment is connected with the DC power supply for its power supply, including first controlling means, first relay, the second relay, second controlling means and third relay, first controlling means passes through control cable with control terminal and is connected, the normally closed contact of first relay concatenates between secondary equipment and DC power supply, the break-make of this normally closed contact of first controlling means control, the normally open contact of second relay is used for feeding back the change of first relay state to control terminal, the second controlling means is connected with the secondary equipment power end, and the break-make of control third relay normally open contact, whether normal with the secondary equipment power of feedback to control terminal.
Further, the first relay coil is connected with a first control device.
Furthermore, the control terminal comprises a remote signaling power supply end and a remote control power supply end, the normally open contact of the first relay is connected with the remote signaling power supply end after being connected with the coil of the second relay in series, and the normally open contact of the second relay is connected with the remote signaling power supply end.
Furthermore, a coil of the third relay is connected with a second control device, and a normally open contact of the third relay is connected with a remote signaling power supply end.
Furthermore, the power supply device also comprises a first power supply device which is connected with the first control device to supply power for the first control device, and a second power supply device which is connected with the second control device to supply power for the second control device, wherein the first power supply device and the second power supply device both comprise transformers.
Further, the first control device and the second control device both comprise a single chip microcomputer, a CPU or a microprocessor.
Further, the control terminal comprises a measurement and control device, a monitoring background and an IES700 system.
Further, the secondary equipment comprises a switch, a protocol conversion device, a fault recorder and a measurement and control device.
The utility model has the following beneficial effects:
1. when the secondary equipment is in an abnormal condition, the control terminal remotely sends a restart instruction to the first control device, the first control device sends a power-off instruction with a specific time length to the first relay after receiving the restart instruction, the first relay coil is electrified, the normally closed contact of the first relay is disconnected, so that the connection between the secondary equipment and the direct-current power supply is disconnected, and after the specific time length, the first relay coil is electrified, the normally closed contact is closed, so that the secondary equipment is reconnected with the direct-current power supply, so that the remote restart of the secondary equipment is realized, personnel do not need to arrive at a transformer substation site in the whole process, the operation preparation time, the transformer substation round-trip time and the defect processing time are saved, the defect elimination efficiency is effectively improved, and a large amount of manpower and material resources are saved; the normally open contact of the second relay feeds back the change of the state of the first relay to the control terminal, namely, whether the second control device carries out restarting action or not is fed back to the control terminal; the second control device is connected with a power supply end of the secondary equipment to detect whether the power supply of the secondary equipment is recovered to be normal or not and control the on-off of a normally open contact of a third relay according to a detection result, so that whether the secondary equipment is successfully restarted or not is fed back to the control terminal, and the control terminal can know whether the secondary equipment is successfully restarted or not at the first time; the second control device is connected with a power supply end of the secondary equipment, and can feed back the abnormality to the control terminal at the first time when the direct-current voltage loses the ground, and assist the control terminal to judge the direct-current loss-of-ground pulling in the station.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings.
FIG. 1 illustrates a schematic diagram of the present invention.
Wherein, 1, controlling the terminal; 2. a first control device; 3. a second control device; 4. a first power supply device; 5. a second power supply device; 6. secondary equipment; 7. a direct current power supply; 8. a control cable; KM1, a first relay coil; KM11, a normally closed contact of a first relay; KM12, a normally open contact of a first relay; KM2, a second relay coil; KM21, a normally open contact of a second relay; KM3, third relay coil; KM3, a normally open contact of a third relay; v1, remote control power supply end; v2, remote signaling power supply terminal.
Detailed Description
The secondary equipment in the transformer substation comprises a switch, a protocol conversion device, a fault recorder and a measurement and control device, and is powered by a direct-current power supply. The auxiliary device for remotely controlling the working state of the secondary equipment is used for assisting the control terminal 1 to restart the secondary equipment 6, the control terminal 1 is arranged at a remote end and comprises a measurement and control device, a monitoring background connected with the measurement and control device and an IES700 system connected with the monitoring background, and the connection mode of the measurement and control device, the monitoring background and the IES700 system is the prior art.
As shown in fig. 1, the auxiliary device for remotely controlling the working state of the secondary equipment comprises a first control device 2, a first relay, a second control device 3, a third relay, a first power supply device 4 and a second power supply device 5, wherein the first control device 2 is connected with a control terminal 1 through a control cable 8, a normally closed contact KM11 of the first relay is connected in series between the secondary equipment 6 and a direct current power supply 7, the first control device 2 controls the on-off of the normally closed contact, a normally open contact KM21 of the second relay is used for feeding back the change of the state of the first relay to the control terminal 1, the second control device 3 is connected with the power supply end of the secondary equipment 6 and controls the on-off of the normally open contact of the third relay, so as to feed back whether the secondary equipment 6 is restarted successfully or not to the control terminal 1, the first power supply device 4 is connected with the first control device 2 to supply power to the secondary equipment, and the second power supply device 5 is connected with the second control device 3 to supply power to the secondary equipment.
More specifically, the first control device 2 is connected with the measurement and control device of the control terminal 1 through the control cable 8, the measurement and control device comprises a remote signaling power supply end V2 and a remote signaling power supply end V1, the first relay coil KM1 is connected with the first control device 2, the normally open contact KM12 of the first relay is connected with the remote signaling power supply end V2 of the measurement and control device after being connected with the second relay coil KM2 in series, the normally open contact KM21 of the second relay is connected with the remote signaling power supply end V2, the third relay coil KM3 is connected with the second control device 3, and the normally open contact KM31 of the third relay is connected with the remote signaling power supply end V2.
The first power supply means 4 and the second power supply means 5 each comprise a transformer for transforming the mains supply to a dc voltage of 24 for supplying the first control means 2 and the second control means 3 with power.
In this embodiment, the first control device 2 and the second control device 3 are both single-chip microcomputers.
The working principle of the utility model is as follows:
when the secondary equipment 6 is in an abnormal condition, the control terminal 1 remotely sends a restart instruction to the first control device 2, after receiving the restart instruction, the first control device 2 sends a power-off instruction with a specific time length to the first relay (the specific time length refers to the power-off duration of the secondary equipment 6 and the delay signaling duration after the monitoring voltage fluctuation is normal, and can be manually set), the first relay coil KM1 is electrified, the normally closed contact KM11 of the first relay is disconnected, so that the secondary equipment 6 is disconnected from the direct-current power supply 7, after the specific time length, the first relay coil KM1 is electrified, the normally closed contact KM11 is closed, so that the secondary equipment 6 is reconnected with the direct-current power supply 7, so that the remote restart of the secondary equipment 6 is realized, after the first relay coil KM1 is electrified, the normally open contact KM12 of the first relay is closed, so that the second relay coil KM2 is electrified, the normally open contact KM21 of the second relay is closed, that is, the change of the state of the first relay is fed back to the measurement and control device (i.e., the control terminal 1), when the power supply of the secondary device 6 returns to normal, the second control device 3 makes the third relay coil KM3 powered on, and then the normally open contact KM31 of the third relay is closed, that is, whether the secondary device 6 is successfully restarted is fed back to the measurement and control device.
The above description is only a preferred embodiment of the present invention, and therefore should not be taken as limiting the scope of the utility model, which is defined by the appended claims and their equivalents and modifications within the scope of the description.

Claims (8)

1. The utility model provides an auxiliary device for secondary equipment operating condition remote control for the auxiliary control terminal restarts secondary equipment, secondary equipment is connected with the DC power supply who supplies power for it, its characterized in that: including first controlling means, first relay, the second relay, second controlling means and third relay, first controlling means passes through control cable connection with control terminal, the normally closed contact of first relay concatenates between secondary equipment and DC power supply, the break-make of this normally closed contact of first controlling means control, the normally open contact of second relay is used for feeding back the change of first relay state to control terminal, second controlling means is connected with the secondary equipment power end, and the break-make of control third relay normally open contact, whether normal with feeding back the secondary equipment power to control terminal.
2. The auxiliary device for remotely controlling the working state of the secondary equipment as claimed in claim 1, wherein: the first relay coil is connected with a first control device.
3. The auxiliary device for remotely controlling the working state of the secondary equipment as claimed in claim 1, wherein: the control terminal comprises a remote signaling power supply end and a remote signaling power supply end, a normally open contact of the first relay is connected with a coil of the second relay in series and then connected with the remote signaling power supply end, and a normally open contact of the second relay is connected with the remote signaling power supply end.
4. The auxiliary device for remotely controlling the working state of the secondary equipment as claimed in claim 3, wherein: and a coil of the third relay is connected with a second control device, and a normally open contact of the third relay is connected with a remote signaling power supply end.
5. The auxiliary device for remotely controlling the working state of the secondary equipment according to any one of claims 1 to 4, wherein: the power supply device also comprises a first power supply device connected with the first control device to supply power for the first control device, and a second power supply device connected with the second control device to supply power for the second control device, wherein the first power supply device and the second power supply device both comprise transformers.
6. The auxiliary device for remotely controlling the working state of the secondary equipment according to any one of claims 1 to 4, wherein: the first control device and the second control device both comprise a single chip microcomputer, a CPU or a microprocessor.
7. The auxiliary device for remotely controlling the working state of the secondary equipment according to any one of claims 1 to 4, wherein: the control terminal comprises a measurement and control device, a monitoring background and an IES700 system.
8. The auxiliary device for remotely controlling the working state of the secondary equipment according to any one of claims 1 to 4, wherein: the secondary equipment comprises a switch, a protocol conversion device, a fault recorder and a measurement and control device.
CN202122732795.3U 2021-11-09 2021-11-09 Auxiliary device for remotely controlling working state of secondary equipment Active CN216625382U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202122732795.3U CN216625382U (en) 2021-11-09 2021-11-09 Auxiliary device for remotely controlling working state of secondary equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202122732795.3U CN216625382U (en) 2021-11-09 2021-11-09 Auxiliary device for remotely controlling working state of secondary equipment

Publications (1)

Publication Number Publication Date
CN216625382U true CN216625382U (en) 2022-05-27

Family

ID=81696061

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202122732795.3U Active CN216625382U (en) 2021-11-09 2021-11-09 Auxiliary device for remotely controlling working state of secondary equipment

Country Status (1)

Country Link
CN (1) CN216625382U (en)

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