CN210243756U - Rapid verification device for relay protection tripping outlet matrix - Google Patents

Rapid verification device for relay protection tripping outlet matrix Download PDF

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Publication number
CN210243756U
CN210243756U CN201920731775.4U CN201920731775U CN210243756U CN 210243756 U CN210243756 U CN 210243756U CN 201920731775 U CN201920731775 U CN 201920731775U CN 210243756 U CN210243756 U CN 210243756U
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China
Prior art keywords
self
outlet
detection
circuit
relay protection
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CN201920731775.4U
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Chinese (zh)
Inventor
Ruigui Liu
刘瑞贵
Xiaochun Zhang
张晓春
Zhongkai Pan
潘忠凯
Yujie Ding
丁宇洁
Xianqin Song
宋先琴
Yijun Qian
钱宜均
Lyu Chen
陈律
Shengping Li
李生平
Junfeng Wu
吴俊峰
Xunzhang Fan
樊训章
Zhonglun Xie
谢忠伦
Wen Zhang
张文
Li Zou
邹力
Zhenlin Tan
谭镇林
Jiangang Liu
刘建刚
Fenghe Chen
陈风鹤
Wei Shi
施巍
Wen Liao
廖文
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Guizhou Power Grid Co Ltd
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Guizhou Power Grid Co Ltd
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Priority to CN201920731775.4U priority Critical patent/CN210243756U/en
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Abstract

The utility model discloses a relay protection tripping outlet matrix rapid verification device, which comprises a box body, a code dialing device integrated in the box body, a direct current control power supply integrated in the box body, a plurality of outlet connecting terminals and a detection control circuit; the detection control circuit comprises a plurality of detection loops and signal loops which are connected in parallel, each detection loop is provided with a monitoring relay in a one-to-one correspondence mode, and each monitoring relay is connected to an independent outlet wiring terminal. Adopt the utility model discloses can once only accomplish the tripping operation export wiring after, carry out tripping operation export matrix verification in proper order to various protect function, verify the overall process and need not the repeatability wiring, once only accomplish the test wiring promptly, can edit the export return circuit switch serial number and be convenient for directly perceived judgement, the effectual correctness that has improved work efficiency and protection tripping operation export matrix verification obtains the guarantee.

Description

Rapid verification device for relay protection tripping outlet matrix
Technical Field
The utility model relates to a power grid detection device field particularly, relates to a quick verifying attachment of relay protection tripping operation export matrix.
Background
The safe operation of the relay protection of the transformer substation is the most important safety guarantee of the power system, and the guarantee of the safe operation of the relay protection is one of important measures. At present, the correctness of a tripping outlet matrix of a protection device is generally verified by adopting a multimeter measurement method, the implementation of the method needs two persons, basically, more than ten protection functions of each protection device exist, the average number of outlets corresponding to each protection is about four, the tripping outlet matrix of one protection device needs about 40 times of measurement at least, when the tripping outlet matrix of the protection device is verified to be rapidly protected, such as main transformer differential, line optical difference, line high frequency and the like, the action outlet time limit is about 20ms basically, the outlet voltage value is generally measured by using the multimeter for judgment, the 'voltage value' cannot be seen clearly in the extremely short time, the outlet action quantity can be judged only through the voltage tiny change condition, and thus, the voltage value of an induction voltage multimeter has tiny change, and the verification correctness is greatly influenced. In addition, during each regular inspection, one person adds a protection outlet amount in front of the protection screen, the other person measures and checks the trip outlet amount by using a universal meter behind the protection screen, and the two persons are matched to finish the inspection, so that the workload is quite large, the pressing plates on the protection screen are numerous and dazzling, the error rate during the inspection of the persons is quite large, and the potential safety hazard exists in the protection trip outlet matrix verification.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a device is verified fast to relay protection tripping operation export matrix, can once only accomplish the tripping operation export wiring after, carry out tripping operation export matrix verification in proper order to various protect function, verify the overall process and need not the repeatability wiring, once only accomplish the test wiring promptly, can edit the export return circuit switch serial number and be convenient for directly perceived judgement, the effectual correctness that has improved work efficiency and protection tripping operation export matrix verification obtains the guarantee.
In order to achieve the technical purpose, the utility model discloses a technical scheme specifically as follows:
the utility model provides a relay protection tripping operation export matrix fast verification device, includes the box, integrated dialling the sign indicating number in the box, its characterized in that: the direct current control power supply, the plurality of outlet wiring terminals and the detection control circuit are integrated in the box body; the detection control circuit comprises a plurality of detection loops and signal loops which are connected in parallel, each detection loop is provided with a monitoring relay in a one-to-one correspondence mode, and each monitoring relay is connected to an independent outlet wiring terminal.
Furthermore, the detection loop comprises a self-detection loop, a self-holding loop and an outlet trigger loop, wherein one end of the self-detection loop and one end of the self-holding loop are connected with the direct-current control power supply in parallel, the other end of the self-detection loop and the other end of the self-holding loop are connected with the detection relay, and the self-detection loop and the self-holding loop are provided with magnetic control switches.
Furthermore, the outlet trigger circuit is connected to the outlet wiring terminal, and a normally closed switch is arranged on the outlet trigger circuit.
Furthermore, a control switch is arranged on the direct current control power supply, a reset button is connected to the direct current power supply, and the reset button is integrated on a panel of the box body.
Furthermore, the signal circuit comprises a plurality of indicator lamps and a starting circuit which are connected in parallel, and each indicator lamp is connected with a magnetic control switch.
Furthermore, the starting circuit comprises a plurality of self-checking intermediate relays, and the self-checking intermediate relays control the magnetic control switches of the self-checking circuit to be turned on and off.
Further, a plurality of intermediate relays are connected in parallel with each other.
Furthermore, the device comprises a connecting cable, wherein one end of the connecting cable is respectively connected into each outlet wiring terminal and the direct-current control power supply, and the other end of the connecting cable is connected into the device to be tested.
The beneficial effects of the utility model reside in that: the utility model is different from the prior art, one end of the test cable is connected to the right lower end of the back surface of the protective screen outlet pressure plate and fixed by the crocodile clip during the test, the other end of the test cable is connected to the trip outlet connecting terminal of the self-control protective trip outlet matrix verification device through the copper nose of the test cable, and the dial indicator corresponding to the outlet to be protected is provided with the trip breaker serial number, then closing the direct current power supply idle switch on monitoring relay trigger circuit, at the moment, adding action amount to the protection device by relay protection working personnel to enable the protection device to act to be an outlet, respectively sending the positive power supply of the trip outlet to the protection trip outlet pressing plate to trigger each monitoring relay circuit, lighting each outlet trip circuit indicator lamp to keep in a normally-on state, and look over according to the good tripping circuit breaker serial number of editor in advance, the personnel of protecting again can audio-visually carry out protection export tripping matrix accuracy and check and judge. When the verification is carried out again, only the reset button needs to be pressed, the state is recovered to the initial state, and then the detection is carried out according to the steps.
For different protection function outlet tests, only one-time wiring is needed after the tripping outlet pressing plate is determined, repeated wiring is not needed in the test process, and one person can finish the tripping outlet matrix verification of each protection function at one time, so that the working benefit is improved, and the workload of relay protection personnel is reduced.
Drawings
Fig. 1 is a schematic structural view of a relay protection trip outlet matrix rapid verification device provided by the present invention;
fig. 2 is a first circuit schematic diagram of the relay protection trip outlet matrix rapid verification device provided by the present invention;
fig. 3 is a circuit schematic diagram ii of the relay protection trip outlet matrix rapid verification apparatus provided by the present invention;
reference numerals:
the device comprises a box body 1, a direct current control power supply wiring terminal 2, a test button 3, a direct current control power supply switch 4, an indicator lamp 5, a code dialing device 6, an outlet wiring terminal 7, a copper nose 8, a connecting cable 9, a pressing plate 10, a protection screen 11, a monitoring relay 12, a direct current control power supply 13, a self-checking intermediate relay 14 and a reset button 15.
Detailed Description
The present invention will be described in further detail below with reference to specific embodiments and with reference to the accompanying drawings.
As shown in fig. 1-3, a relay protection trip outlet matrix rapid verification apparatus includes a box 1, a dialer 6 integrated in the box 1, a dc control power supply 13 integrated in the box 1, a plurality of outlet terminals 7, and a detection control circuit; the detection control circuit comprises a plurality of detection loops and signal loops which are connected in parallel, each detection loop is provided with a monitoring relay 12 in a one-to-one correspondence mode, and each monitoring relay 12 is connected to an independent outlet wiring terminal 7.
The detection loop comprises a self-detection loop, a self-holding loop and an outlet trigger loop, wherein one end of the self-detection loop and one end of the self-holding loop are connected with the direct-current control power supply 13 after being connected in parallel, the other end of the self-detection loop and the other end of the self-holding loop are connected with the detection relay, and the self-detection loop and the self-holding loop are provided with magnetic control switches.
The outlet trigger circuit is connected to the outlet wiring terminal 7, and a normally closed switch is arranged on the outlet trigger circuit. The direct current control power supply 13 is provided with a control switch, and a reset button is connected to the direct current power supply and integrated on a panel of the box body 1.
The signal circuit comprises a plurality of indicator lamps 5 and a starting circuit which are connected in parallel, and each indicator lamp 5 is connected with a magnetic control switch. The starting circuit comprises a plurality of self-checking intermediate relays 14, the self-checking intermediate relays 14 control the magnetic control switches of the self-checking circuit to be opened and closed, and the intermediate relays are connected in parallel.
Still include connecting cable 9, connecting cable 9 one end inserts respectively into every export binding post 7 and direct current control power binding post 2 with copper nose 8, and the other end inserts the device under test.
In actual use, as shown in fig. 2 and 3, before verification, the device needs to be self-checked, the switch 4 of the direct-current control power supply 13 is turned on, the trigger loop of the monitoring relay 12 is electrified, the outlet signal loop is electrified, and self-checking conditions are met. After the test button 3 is touched lightly, the contact SA1-1 is closed, the self-test intermediate relays 14KM8 and KM9 are excited simultaneously, and because the interfaces of each relay are limited, more intermediate relays are needed when more outlets are designed, and the invention is not limited to only the intermediate relays KM8 and KM 9.
A normally open contact KM8-1 is closed KM1 for excitation; the contact KM1-3 is closed to light an exit 1 indicator lamp 5HD 1; a normally open contact KM8-2 is closed KM2 for excitation action; the contact KM2-3 is closed to light an exit 2 indicator lamp 5HD 2; a normally open contact KM8-3 is closed KM3 for excitation action, and a contact KM3-3 is closed to light an outlet 3 indicator lamp 5HD 3; a normally open contact KM8-4 is closed KM4 for excitation action; the contact KM4-3 is closed to light an exit 4 indicator lamp 5HD 4; a normally open contact KM9-1 is closed KM5 for excitation action; the contact KM5-3 is closed to light an exit 5 indicator lamp 5HD 5; a normally open contact KM9-2 is closed KM6 for excitation action; the contact KM6-3 is closed to light an exit 6 indicator lamp 5HD 6; a normally open contact KM9-3 is closed KM7 for excitation action; the contact KM7-3 is closed to light an exit 7 indicator lamp 5HD 7; the exit indicator lamp 5 is kept normally on to verify the integrity of each element in the home-made protection trip exit matrix verification device. After the self-checking is finished, the initial state before the self-checking can be recovered only by pressing the reset button 15SA2-1 so as to carry out the tripping outlet matrix detection.
After the self-checking is completed, the whole equipment is intact, protection trip outlet matrix verification is carried out, a protection outlet pressing plate 10 loop of a test is determined, a trip outlet circuit breaker corresponds to a code dialing device 6, an outlet wiring terminal 7 corresponds to a circuit breaker number, one end of a connecting cable 9 is correctly led to an upper wiring terminal or a lower wiring terminal on the back surface of the trip outlet pressing plate 10 on a protection screen 11 and is fixed by an alligator clip, the other end of the connecting cable 9 is led to an outlet wiring terminal 7 corresponding to an outlet 1, an outlet 2, an outlet 3, an outlet 4, an outlet 5, an outlet 6 and an outlet 7 of a self-control trip outlet matrix verification device, the test wiring is completed at one time, a direct current control power supply 13 switch 4 is connected, and a trigger loop and an outlet signal loop of a monitoring relay 12 are.
If the relay protection personnel only perform protection trip matrix verification of the port 1, the port 2 and the port 3, action amount can be added to the protection device to enable the protection device to act at the port, positive electricity (+ KM) of the protection trip port is protected by the LP1, the LP2 and the LP3 to protect the outlet pressure plate 10, and then the D1, the D2 and the D3 are respectively added to coil loops of the protection port 1, the port 2 and the port 3 monitoring relays 12KM1, KM2 and KM3 through the outlet wiring terminals 7 and are excited to act, and the normally open contacts KM1-1, KM2-1 and KM3-1 are closed and self-maintained. Normally closed contacts KM1-2, KM2-2 and KM3-2 are all disconnected, and an outlet 1, an outlet 2 and an outlet 3 monitor relay 12 triggers a loop to prevent a direct-current control power supply 13 from being connected in a tripping loop of the protection device in series; the normally open contact KM1-3, the normally open contact KM2-3 and the normally open contact KM3-3 are closed, the exit 1 indicator lamp 5HD1, the exit 2 indicator lamp 5HD2 and the exit 3 indicator lamp 5HD3 are respectively lightened and kept in a normally lit state, and at the moment, relay protection personnel can visually check the correctness of a protection trip exit matrix of the relay protection personnel by contrasting the exit breaker number dialed by the pre-dialing device 6.
When the system is verified again, the reset button 15SA2-1 can be lightly pressed to open the self-holding loops of 7 exit monitoring relays 12, namely, the KM1, the KM2, the KM3, the KM4, the KM5, the KM6 and the KM7 monitoring relays 12 are all powered off and magnetically off and return, the contacts KM1-2, the KM2-2, the KM3-2, the KM4-2, the KM5-2, the KM6-2 and the KM7-2 are closed, and the trigger loops of 7 exit monitoring relays 12 are all switched on and return to the initial state, so that the tripping exit protection matrix is verified again.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (8)

1. Quick verifying attachment of relay protection tripping operation export matrix, including box, integrated dialler in the box, its characterized in that: the direct current control power supply, the plurality of outlet wiring terminals and the detection control circuit are integrated in the box body; the detection control circuit comprises a plurality of detection loops and signal loops which are connected in parallel, each detection loop is provided with a monitoring relay in a one-to-one correspondence mode, and each monitoring relay is connected to an independent outlet wiring terminal.
2. The relay protection trip exit matrix rapid validation device of claim 1, wherein: the detection circuit comprises a self-detection circuit, a self-holding circuit and an outlet trigger circuit, wherein one end of the self-detection circuit and one end of the self-holding circuit are connected with the direct-current control power supply in parallel, the other end of the self-detection circuit and the other end of the self-holding circuit are connected with the detection relay, and the self-detection circuit and the self-holding circuit are provided with magnetic control switches.
3. The relay protection trip exit matrix rapid validation device of claim 2, wherein: the outlet trigger circuit is connected to the outlet wiring terminal, and a normally closed switch is arranged on the outlet trigger circuit.
4. The relay protection trip exit matrix rapid validation device of claim 1, wherein: the direct current control power supply is provided with a control switch, a reset button is connected to the direct current power supply, and the reset button is integrated on a panel of the box body.
5. The relay protection trip exit matrix rapid validation device of claim 1, wherein: the signal circuit comprises a plurality of indicating lamps and a starting circuit which are connected in parallel, and each indicating lamp is connected with a magnetic control switch.
6. The relay protection trip exit matrix rapid validation device of claim 5, wherein: the starting circuit comprises a plurality of self-checking intermediate relays, and the self-checking intermediate relays control the magnetic control switches of the self-checking circuit to be opened and closed.
7. The relay protection trip exit matrix rapid validation device of claim 6, wherein: the intermediate relays are connected in parallel.
8. The relay protection trip exit matrix rapid validation device of claim 1, wherein: the device is characterized by further comprising a connecting cable, wherein one end of the connecting cable is respectively connected into each outlet wiring terminal and the direct-current control power supply, and the other end of the connecting cable is connected into the device to be tested.
CN201920731775.4U 2019-05-21 2019-05-21 Rapid verification device for relay protection tripping outlet matrix Active CN210243756U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920731775.4U CN210243756U (en) 2019-05-21 2019-05-21 Rapid verification device for relay protection tripping outlet matrix

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920731775.4U CN210243756U (en) 2019-05-21 2019-05-21 Rapid verification device for relay protection tripping outlet matrix

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CN210243756U true CN210243756U (en) 2020-04-03

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110286274A (en) * 2019-05-21 2019-09-27 贵州电网有限责任公司 A kind of relay protection tripping outlet matrix fast verification device
CN114776571A (en) * 2021-06-18 2022-07-22 上海华电电力发展有限公司望亭发电分公司 Pump feeding protection calibration system and method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110286274A (en) * 2019-05-21 2019-09-27 贵州电网有限责任公司 A kind of relay protection tripping outlet matrix fast verification device
CN114776571A (en) * 2021-06-18 2022-07-22 上海华电电力发展有限公司望亭发电分公司 Pump feeding protection calibration system and method
CN114776571B (en) * 2021-06-18 2023-11-14 上海华电电力发展有限公司望亭发电分公司 Pump protection and verification system and method

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