CN107247226B - Substation remote control loop safety acceptance device - Google Patents
Substation remote control loop safety acceptance device Download PDFInfo
- Publication number
- CN107247226B CN107247226B CN201710620044.8A CN201710620044A CN107247226B CN 107247226 B CN107247226 B CN 107247226B CN 201710620044 A CN201710620044 A CN 201710620044A CN 107247226 B CN107247226 B CN 107247226B
- Authority
- CN
- China
- Prior art keywords
- remote control
- circuit
- switching
- switch
- closing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/282—Testing of electronic circuits specially adapted for particular applications not provided for elsewhere
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C25/00—Arrangements for preventing or correcting errors; Monitoring arrangements
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/16—Electric power substations
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention relates to the technical field of substation remote control loops, in particular to a safety acceptance device for a substation remote control loop. The device comprises: the measurement and control module comprises a remote control public end, a remote control closing end and a remote control opening end, wherein the remote control public end is connected with the public end of a circuit closing to be checked and accepted, the remote control closing end is connected with the circuit closing end to be checked and accepted, the remote control opening end is connected with the circuit opening end to be checked and accepted, the safety checking and accepted device further comprises an alarm module, the alarm module comprises a circuit safety indicator LED3, and the remote control public end, the remote control closing end and the remote control opening end are connected with the alarm module in parallel. The alarm module can effectively avoid electric shock accidents caused by electrification of the acceptance loop.
Description
Technical Field
The invention relates to the technical field of substation remote control loops, in particular to a safety acceptance device for a substation remote control loop.
Background
Along with the propulsion of the power grid regulation and control integration, the switch knife switch operation of the transformer substation generally applies the remote control function of the dispatching automation system, namely, the remote motor of the transformer substation receives the remote control command of the dispatching master station, the remote control command transmits the command to the corresponding measurement and control device through the forwarding of the remote motor, the corresponding remote control relay is started after the measurement and control device receives the remote control command, and the control of the remote control loop is realized through the action of the remote control relay. As shown in fig. 1: when the measurement and control device receives a remote control closing command, the contact of the closing relay instantly closes the contact of the remote control public terminal and the contact of the remote control closing terminal, so that a remote control closing loop is started to close a corresponding switch (a knife switch) (the closing time is set to 120ms to 400ms according to technical specifications). And replacing or expanding the secondary remote control loop of the substation automation system, and checking and accepting the changed remote control loop. The current remote control loop acceptance method comprises the following steps: 1. under the complete condition of safety measures, when remote control operation is scheduled, the universal meter measuring device is used for switching on and off the contacts of the switching-on and switching-off relay, and as shown in fig. 1, the remote control switching-on is to measure the switching-on and switching-off of the contacts 'remote control public terminal' and the contacts 'remote control switching-on terminal'. 2. And (3) carrying out remote control acceptance on the device by using the simulated circuit breaker, namely connecting the simulated circuit breaker with a remote control terminal of the measurement and control device to be inspected.
The main problems with using the 2 above-mentioned checks are: 1. when the two methods are used for inspection, whether a remote control loop is electrified or not in the process of inspection and acceptance cannot be detected, and potential safety hazards exist; 2. when the universal meter is used for measuring on-off, since the time kept by the node after the remote control relay of the measurement and control device acts is 120ms to 400ms, the acceptance personnel cannot judge whether the remote control is successful or not in the short time, and the operation is required to be confirmed by performing multiple remote control acceptance operations, so that the working efficiency is low; 3. the analog circuit breaker has large volume, needs to be externally connected with a working power supply, is complex in wiring during use, and is inconvenient to move and use on site.
Disclosure of Invention
The invention provides a transformer substation remote control loop safety acceptance device for overcoming at least one defect in the prior art. Effectively improves the operation safety and prevents the occurrence of electric shock.
In order to solve the technical problems, the technical scheme of the invention is as follows: a substation remote control loop security acceptance device, comprising: the measurement and control module comprises a remote control public end, a remote control closing end and a remote control opening end, wherein the remote control public end is connected with the public end of a circuit closing to be checked and accepted, the remote control closing end is connected with the circuit closing end to be checked and accepted, the remote control opening end is connected with the circuit opening end to be checked and accepted, the safety checking and accepted device further comprises an alarm module, the alarm module comprises a circuit safety indicator LED3, and the remote control public end, the remote control closing end and the remote control opening end are connected with the alarm module in parallel. The unsettled one end is similar to test pencil, through human contact switch control ground connection, if safety indicator lamp LED3 lights after the ground connection, indicate to check and accept the return circuit and take the point, stop checking and accepting, if LED3 is not bright, then represent that check and accept the return circuit and not electrified be in safe state, can continue to carry out the check and accept the step, alarm module's setting can effectively avoid check and accept the return circuit electrified and take place the electric shock accident.
Further, the measurement and control module comprises a measurement and control circuit, the measurement and control circuit include switch-on indication circuit, separating brake indication circuit, remote control switch-on main circuit, remote control separating brake main circuit, switch-on indication circuit and separating brake indication circuit connect in parallel the back one end and connect the remote control public terminal, the one end of remote control switch-on main circuit and the one end of remote control separating brake main circuit are connected to the other end, switch-on indication circuit include switching on action lamp LED1, normally open contact K1 of establishing ties, separating brake indication circuit include switching on action lamp LED2, normally open contact K2, remote control switch-on main circuit include time relay Z1, remote control switch-on main circuit other end access remote control switch-on end, time relay Z1 control normally open contact K1, time relay Z2 control normally open contact K2. The setting can effectually prolong the time of acceptance to guarantee the success rate of remote control acceptance, avoid many times of acceptance, improve work efficiency.
Further, the measurement and control circuit comprises a switch K3, the alarm module comprises a switch K3', and the switch K3 is linked with the switch K3'. When the switch K3 is closed, the switch K3' is automatically opened, so that the operation safety is ensured, and the occurrence of electric shock accidents is avoided.
Further, the safety acceptance apparatus comprises an operation box, wherein the remote control public end, the remote control closing end, the remote control opening end, the circuit safety indicator light LED3, the closing action light LED1, the opening action light LED2 and the working switch are installed on the operation box, and the working switch controls the opening and closing of the switch K3. The operation box is convenient to wire and move on site.
Further, a resistor R4 is connected in series in the switching-on indicating circuit, a resistor R3 is connected in series in the switching-off indicating circuit, a resistor R1 is connected in series in the remote control switching-on main circuit, a resistor R2 is connected in series in the remote control switching-off main circuit, and a resistor R5 is connected in series with the alarm module. Thereby guaranteeing the safety of the circuit.
Further, the circuit safety indicator light LED3 is a neon lamp. The reliability of the alarm module is ensured.
Further, the time relay Z1 and the time relay Z2 are both voltage control time relays.
Further, the setting time length of the time relay Z1 and the time relay Z2 is more than or equal to 10S. The success rate of remote control acceptance is effectively guaranteed, and unsuccessful acceptance caused by too short closing time of an acceptance circuit is avoided.
Compared with the prior art, the beneficial effects are that: the alarm module is arranged to effectively avoid potential safety hazards caused by electrification of a loop to be checked; the time relay controls the closing indicating circuit and the opening indicating circuit to effectively prolong the remote control acceptance time, improve the success rate of remote control acceptance, avoid multiple operations and further improve the acceptance efficiency; the setting of operation box can conveniently be wired, can conveniently remove simultaneously and carry.
Drawings
Fig. 1 is a schematic view of a prior art acceptance device.
Fig. 2 is a schematic diagram of the overall circuit of the present invention.
Fig. 3 is a schematic view of the structure of the operation box of the present invention.
Detailed Description
The drawings are for illustrative purposes only and are not to be construed as limiting the present patent; for the purpose of better illustrating the embodiments, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the actual product dimensions; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationship depicted in the drawings is for illustrative purposes only and is not to be construed as limiting the present patent.
As shown in fig. 2-3, a substation remote control loop safety acceptance apparatus includes: the measurement and control module comprises a remote control public end, a remote control closing end and a remote control opening end, wherein the remote control public end is connected with the public end of a circuit closing to be checked and accepted, the remote control closing end is connected with the circuit closing end to be checked and accepted, the remote control opening end is connected with the circuit opening end to be checked and accepted, the safety checking and accepted device further comprises an alarm module, the alarm module comprises a circuit safety indicator LED3, and the remote control public end, the remote control closing end and the remote control opening end are connected with the alarm module in parallel.
Further, the measurement and control module comprises a measurement and control circuit, the measurement and control circuit include switch-on indication circuit, separating brake indication circuit, remote control switch-on main circuit, remote control separating brake main circuit, switch-on indication circuit and separating brake indication circuit connect in parallel the back one end and connect the remote control public terminal, the one end of remote control switch-on main circuit and the one end of remote control separating brake main circuit are connected to the other end, switch-on indication circuit include switching on action lamp LED1, normally open contact K1 of establishing ties, separating brake indication circuit include switching on action lamp LED2, normally open contact K2, remote control switch-on main circuit include time relay Z1, remote control switch-on main circuit other end access remote control switch-on end, time relay Z1 control normally open contact K1, time relay Z2 control normally open contact K2.
Further, the measurement and control circuit comprises a switch K3, the alarm module comprises a switch K3', and the switch K3 is linked with the switch K3'.
Further, the safety acceptance apparatus comprises an operation box, wherein the remote control public end, the remote control closing end, the remote control opening end, the circuit safety indicator light LED3, the closing action light LED1, the opening action light LED2 and the working switch are installed on the operation box, and the working switch controls the opening and closing of the switch K3.
Further, a resistor R4 is connected in series in the switching-on indicating circuit, a resistor R3 is connected in series in the switching-off indicating circuit, a resistor R1 is connected in series in the remote control switching-on main circuit, a resistor R2 is connected in series in the remote control switching-off main circuit, and a resistor R5 is connected in series with the alarm module.
Further, the circuit safety indicator light LED3 is a neon lamp.
Further, the time relay Z1 and the time relay Z2 are both voltage control time relays.
Further, the setting time length of the time relay Z1 and the time relay Z2 is more than or equal to 10S.
The remote control opening action of the measurement and control device is actually that after the remote control relay of the device acts, the switching-on node or the switching-off node is switched on instantaneously. Taking an acceptance switch-on loop as an example: 1. the voltage induction device judges whether a remote control loop terminal to be checked is electrified or not; 2. under the condition that the control loop terminal is not electrified, the correct and complete loop safety measures are confirmed, a working switch of a remote control checking device is put into, a remote control 'closing public end' is connected with a remote control loop to be checked in a public way, and the 'remote control closing end' is connected with a closing end of the remote control loop to be checked in a way; 3. when the test and control device receives a switch-on command when checking and accepting the switch-on loop, the contact YK1 is closed after the test and control device remotely controls the relay to act, the 'remote switch-on end' is communicated with the 'remote public end', and the voltage relay Z1 is started; 4. because the contact switching-on is only kept 120-400mS after the switching-on relay of the measurement and control device acts, the voltage relay Z1 adopts a time-controlled action mode, the normally open contact K1 of the relay acts after the Z1 is started, 10S is kept after the K1 acts are closed, the LED lamp is turned on (red lamp) and kept for 10S after the 5 and K1 are closed, and the acceptance device prompts that the switching-on is successful
The remote control opening and closing principle is the same as that of closing.
Alarm module part: as shown in fig. 2, when the three terminals of the public end, the opening end and the closing end of the circuit to be checked are connected into a novel transformer substation remote control circuit safety checking device, the three terminals are connected in parallel and then are connected in series on the neon tube through a button switch, the principle of an electroscope is utilized, if the neon tube emits light, the circuit can be initially judged to be electrified, the checking work is stopped at the moment, and the checking work is performed after the circuit is checked. If the neon lamp is not on, judging that the loop to be checked is normal and has no voltage, switching on the working switch K3 of the device, and switching off the withdrawal voltage induction part by the linkage K3' after the working switch K3 is switched on. (the working switch K3 is linked with the K3', when the K3 is closed, the K3' is disconnected), and the voltage of a control loop of the general transformer substation is direct current 220V or direct current 110V; technical parameters: the neon lamp LED3 adopts a neon tube which can induce 12V to 250V AC/DC voltage; the human body safety current is 10mA, wherein the resistor R5 is 250/10 mA=25KΩ, and the resistor R5 is 40K Ω.
The opening and closing acceptance loop adopts a voltage relay with a starting voltage value of 5V, wherein the voltage relay is a relay with a set action holding time, and the holding time of the node after the switching action can be set as required after the relay is started, and the holding time is set to be 10S. Z1 and Z2 are voltage control time relays, and main parameters of the relays are as follows: coil operating voltage: 5V; when the relay draws 45mA, R1 and R2 are matched resistors: 5/45 ma=0.11 kΩ, where r1=r2=0.2 kΩ; the working starting current of the LED1 and the LED2 is 10mA, 5/10 mA=0.2 KΩ, and the value R3=R4=0.2K Ω.
It is to be understood that the above examples of the present invention are provided by way of illustration only and not by way of limitation of the embodiments of the present invention. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the invention are desired to be protected by the following claims.
Claims (5)
1. A substation remote control loop security acceptance device, comprising: the system comprises a measurement and control module, a control module and a control module, wherein the measurement and control module comprises a remote control public end, a remote control closing end and a remote control opening end, the remote control public end is connected with a to-be-checked loop closing public end, the remote control closing end is connected with the to-be-checked loop closing end, the remote control opening end is connected with the to-be-checked loop opening end, the system is characterized in that the safety checking device also comprises an alarm module, the alarm module comprises a circuit safety indicator LED3, the remote control public end, the remote control closing end and the remote control opening end are connected in parallel and then connected with the alarm module, and the other end of the alarm module is suspended;
the measurement and control module comprises a measurement and control circuit, the measurement and control circuit comprises a switching-on indication circuit, a switching-off indication circuit, a remote control switching-on main circuit and a remote control switching-off main circuit, one end of the switching-on indication circuit is connected with a remote control public end after being connected in parallel with the switching-off indication circuit, the other end of the switching-on indication circuit is connected with one end of the remote control switching-on main circuit and one end of the remote control switching-off main circuit, the switching-on indication circuit comprises a switching-on action lamp LED1 and a normally open contact K1 which are connected in series, the switching-off indication circuit comprises a switching-off action lamp LED2 and a normally open contact K2, the remote control switching-on main circuit comprises a time relay Z1, the other end of the remote control switching-on main circuit is connected with the remote control switching-off end, the time relay Z1 controls the normally open contact K1, and the time relay Z2 controls the normally open contact K2;
the measurement and control circuit comprises a switch K3, the alarm module comprises a switch K3', and the switch K3 is linked with the switch K3';
the safety acceptance device comprises an operation box, wherein a remote control public end, a remote control closing end, a remote control opening end, a circuit safety indicator light LED3, a closing action light LED1, an opening action light LED2 and a working switch are arranged on the operation box, and the working switch controls the opening and closing of a switch K3.
2. The transformer substation remote control loop safety acceptance apparatus according to claim 1, wherein the switch-on indication circuit is connected in series with a resistor R4, the switch-off indication circuit is connected in series with a resistor R3, the remote control switch-on main circuit is connected in series with a resistor R1, the remote control switch-off main circuit is connected in series with a resistor R2, and the alarm module is connected in series with a resistor R5.
3. The transformer substation remote control loop safety acceptance apparatus according to claim 1, wherein the circuit safety indicator light LED3 is a neon lamp.
4. The transformer substation remote control loop safety acceptance apparatus according to claim 1, wherein the time relay Z1 and the time relay Z2 are both voltage control time relays.
5. The transformer substation remote control loop safety acceptance apparatus according to claim 1, wherein the set time length of the time relay Z1 and the time relay Z2 is 10S or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710620044.8A CN107247226B (en) | 2017-07-26 | 2017-07-26 | Substation remote control loop safety acceptance device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710620044.8A CN107247226B (en) | 2017-07-26 | 2017-07-26 | Substation remote control loop safety acceptance device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107247226A CN107247226A (en) | 2017-10-13 |
| CN107247226B true CN107247226B (en) | 2023-05-05 |
Family
ID=60013243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710620044.8A Active CN107247226B (en) | 2017-07-26 | 2017-07-26 | Substation remote control loop safety acceptance device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107247226B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110880810A (en) * | 2019-11-15 | 2020-03-13 | 广东电网有限责任公司 | Intelligent electricity testing system applied to transformer substation |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104300677A (en) * | 2014-09-15 | 2015-01-21 | 西安同创电力设备自动控制工程有限公司 | Intelligent control device and method of electric power high voltage circuit breaker |
| CN205544619U (en) * | 2016-04-22 | 2016-08-31 | 国网冀北电力有限公司唐山供电公司 | Portable cubical switchboard divide -shut brake remote control unit |
| CN106950449A (en) * | 2017-04-07 | 2017-07-14 | 国网山东省电力公司潍坊供电公司 | Intelligent substation checks and accepts breaker controller in analogue system |
-
2017
- 2017-07-26 CN CN201710620044.8A patent/CN107247226B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104300677A (en) * | 2014-09-15 | 2015-01-21 | 西安同创电力设备自动控制工程有限公司 | Intelligent control device and method of electric power high voltage circuit breaker |
| CN205544619U (en) * | 2016-04-22 | 2016-08-31 | 国网冀北电力有限公司唐山供电公司 | Portable cubical switchboard divide -shut brake remote control unit |
| CN106950449A (en) * | 2017-04-07 | 2017-07-14 | 国网山东省电力公司潍坊供电公司 | Intelligent substation checks and accepts breaker controller in analogue system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107247226A (en) | 2017-10-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207557429U (en) | The test device of Morse Shi Mite relays | |
| CN201450133U (en) | Low-voltage grounding protection device | |
| CN108604494A (en) | Real-time detection/repair system when power distribution system source line fault and its construction method | |
| CN107247226B (en) | Substation remote control loop safety acceptance device | |
| CN106291141B (en) | Automatic phase sequence identification device for three-phase power supply on construction site | |
| CN208384025U (en) | A kind of test macro of direct-current charging post | |
| CN204375298U (en) | Demarcation switch Simulated training device | |
| CN109521311B (en) | Relay protection multi-outlet pressing plate measuring instrument | |
| CN206945910U (en) | A kind of transformer substation remote-control loop security inspection device | |
| CN110320821A (en) | Integral type industrial frequency AC Withstand test device control system | |
| CN203037783U (en) | On-off detection apparatus for secondary cable core of current transformer | |
| CN1987491A (en) | Electric power monitor for single phase AC electric device inspection and repair | |
| CN206806982U (en) | A kind of three-phase four-wire power phase shortage and phase sequence warning device | |
| CN205881836U (en) | Electronic type time relay switching -on device that delays | |
| CN105182963B (en) | A kind of test device of fire resisting shutter door controller | |
| CN210722065U (en) | Fault simulation display device | |
| CN211718400U (en) | Electric smelting pipe fitting resistance wire current impact test device | |
| CN207992331U (en) | A kind of transformer testing tooling | |
| CN203616444U (en) | An arrearage trip switch detection apparatus | |
| CN107681648B (en) | A kind of power of alterating and direct current partition method being shorted test for substation secondary | |
| CN214703807U (en) | High-voltage box detection device | |
| CN106608204B (en) | Electric discharge device | |
| CN214622944U (en) | Time delay relay testing arrangement | |
| CN213181921U (en) | Spare power automatic switching test device | |
| CN108594157A (en) | Mutual inductor secondary polarity device for fast detecting |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |