CN111929574A - Auxiliary simulator for relay protection test - Google Patents
Auxiliary simulator for relay protection test Download PDFInfo
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- CN111929574A CN111929574A CN202010785289.8A CN202010785289A CN111929574A CN 111929574 A CN111929574 A CN 111929574A CN 202010785289 A CN202010785289 A CN 202010785289A CN 111929574 A CN111929574 A CN 111929574A
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- 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
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
- G01R31/3277—Testing of circuit interrupters, switches or circuit-breakers of low voltage devices, e.g. domestic or industrial devices, such as motor protections, relays, rotation switches
- G01R31/3278—Testing of circuit interrupters, switches or circuit-breakers of low voltage devices, e.g. domestic or industrial devices, such as motor protections, relays, rotation switches of relays, solenoids or reed switches
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- 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
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Abstract
The invention discloses an auxiliary simulator for relay protection tests, which comprises a relay protection device and an auxiliary simulator for relay protection tests electrically connected with the relay protection device, wherein the auxiliary simulator for relay protection tests comprises a first simulated circuit breaker CB1, a second simulated circuit breaker CB2, a third simulated circuit breaker CB3, a fourth simulated circuit breaker CB4, a fifth simulated circuit breaker CB5, a sixth simulated circuit breaker 6, a seventh simulated circuit breaker CB7, an eighth simulated circuit breaker CB8, a ninth simulated circuit breaker CB9 and a tenth simulated circuit breaker CB10 which are sequentially connected in parallel. Has the advantages that: the relay protection test auxiliary simulator and the relay protection device form an electric loop, the switching-on and switching-off button is adopted to control the relay protection test auxiliary simulator and the relay protection device, the input and output states of a plurality of relay protection devices can be monitored and alarmed, and meanwhile, different protection action conditions in the protection device can be judged through the signal lamp, so that the understanding of the relay protection test auxiliary simulator and the relay protection device is increased.
Description
Technical Field
The invention belongs to the technical field of power industry, and particularly relates to an auxiliary simulator for a relay protection test.
Background
The relay protection is an important measure for detecting faults or abnormal conditions occurring in the power system so as to send out alarm signals or directly isolate and remove fault parts. At present, an existing relay protection operation room generally comprises 5 protection devices, namely siemens 7UT62 main transformer protection, siemens 7UM62 generator protection, Nanrui PCS985G generator protection, Nanrui PCS985BT main transformer protection and Nanrui RCS931 line protection.
The relay protection equipment is matched with an auxiliary switch, an auxiliary contact and the like in the checking process. Although the field protection device is connected with the primary switch, no problem exists, but the field protection device brings inconvenience to the checking work when the field protection device is used for learning and competition in a laboratory. At present, portable simulation circuit breaker return circuits on the market are few, and there is not audible and visual alarm moreover, unable real-time feedback protection action condition to produce very big influence to the laboratory check-up easily, and then make the unable nimble study of deciding for students, be unfavorable for the understanding to the relay protection product.
An effective solution to the problems in the related art has not been proposed yet.
Disclosure of Invention
Aiming at the problems in the related art, the invention provides an auxiliary simulator for a relay protection test, which is suitable for a relay protection laboratory, simulates the operation state of a field circuit breaker, specifically designs and simulates the operation state of primary equipment of an electrical switch of a field substation, and provides related auxiliary conditions for relay protection equipment so as to overcome the technical problems in the prior art.
Therefore, the invention adopts the following specific technical scheme:
the relay protection test auxiliary simulator comprises a relay protection device and a relay protection test auxiliary simulator electrically connected with the relay protection device, wherein the relay protection test auxiliary simulator comprises a first simulation circuit breaker CB1, a second simulation circuit breaker CB2, a third simulation circuit breaker CB3, a fourth simulation circuit breaker CB4, a fifth simulation circuit breaker CB5, a sixth simulation circuit breaker CB6, a seventh simulation circuit breaker 7, an eighth simulation circuit breaker CB8, a ninth simulation circuit breaker 9 and a tenth simulation circuit breaker 10, and the first simulation circuit breaker CB1, the second simulation circuit breaker CB2, the third simulation circuit breaker CB3, the fourth simulation circuit breaker 4, the fifth simulation circuit breaker CB5, the sixth simulation circuit breaker 6, the seventh simulation circuit breaker 7, the eighth simulation circuit breaker CB8, the ninth simulation circuit breaker CB9 and the tenth simulation circuit breaker 10 are connected in parallel.
Preferably, the first analog circuit breaker CB1 is the same as the second analog circuit breaker CB2, and the third analog circuit breaker CB3, the fourth analog circuit breaker 4, the fifth analog circuit breaker 5, the sixth analog circuit breaker 6, the seventh analog circuit breaker CB7, the eighth analog circuit breaker 8, the ninth analog circuit breaker CB9 and the tenth analog circuit breaker 10 are the same.
Preferably, the first analog circuit breaker CB1 comprises a first two-position relay, a second two-position relay, a third two-position relay, a first single-phase opening button, a second single-phase opening button, a third single-phase opening button, a first single-phase closing button, a second single-phase closing button, a third single-phase closing button, a first three-phase opening and closing switch, a second three-phase opening and closing switch, a third three-phase opening and closing switch and a first selection knob.
Preferably, the first two-position relay, the first single-phase opening and closing button, the first single-phase closing button and the first three-phase opening and closing switch form a first opening and closing control loop, a first input end and a second input end of the first three-phase opening and closing switch are both connected with the direct current positive pole, a first output end of the first three-phase opening and closing switch is respectively connected with a first output end of the first single-phase opening and closing button and a first input end of the first two-position relay, a second output end of the first three-phase opening and closing switch is respectively connected with a first output end of the first single-phase closing button and a second input end of the first two-position relay, a first input end of the first single-phase opening and closing, the second input end of the first single-phase switching-on button is connected with the first input end and the second input end of the first single-phase switching-on button, the second input end of the first single-phase switching-off button is connected with the direct current positive electrode, the second output end of the first single-phase switching-off button is connected with the third input end of the first double-position relay, and the second output end of the first single-phase switching-on button is connected with the fourth input end of the first double-position.
Preferably, the second two-position relay, the second single-phase opening and closing button, the second single-phase closing button and the second three-phase opening and closing switch form a second opening and closing control loop, a first input end and a second input end of the second three-phase opening and closing switch are both connected with the direct-current positive pole, a first output end of the second three-phase opening and closing switch is respectively connected with a first output end of the second single-phase opening and closing button and a first input end of the second two-position relay, a second output end of the second three-phase opening and closing switch is respectively connected with a first output end of the second single-phase closing button and a second input end of the second two-position relay, a first input end of the second single-phase opening, the second input end of the single-phase switch-on button II is connected with the first input end and the second input end of the single-phase switch-on button II, the second input end of the single-phase switch-off button II is connected with the direct current positive electrode, the second output end of the single-phase switch-off button II is connected with the third input end of the double-position relay II, and the second output end of the single-phase switch-on button II is connected with the fourth input end of the double-position relay.
Preferably, the three two-position relay, the three single-phase opening and closing button, the three single-phase closing button and the three-phase opening and closing switch form a three closing and closing control loop, a first input end and a second input end of the three-phase opening and closing switch are both connected with a direct current positive pole, a first output end of the three-phase opening and closing switch is respectively connected with a first output end of the three single-phase opening and closing button and a first input end of the three two-position relay, a second output end of the three-phase opening and closing switch is respectively connected with a first output end of the three single-phase closing button and a second input end of the three two-position relay, a first input end of the three single-phase opening, the second input end is connected with the first input end and the second input end of the single-phase switch-on button III and is connected with the direct current positive electrode, the second output end of the single-phase switch-off button III is connected with the third input end of the double-position relay III, and the second output end of the single-phase switch-on button III is connected with the fourth input end of the double-position relay III.
Preferably, the first output end, the second output end and the third output end of the first double-position relay, the first output end, the second output end and the third output end of the second double-position relay, and the first output end, the second output end and the third output end of the third double-position relay are connected in parallel and are connected with the input end of the first selection knob, and the output end of the first selection knob is connected with the direct-current negative electrode.
Preferably, the third analog circuit breaker CB3 includes a fourth two-position relay, a fourth single-phase opening button, a fourth single-phase closing button, and a second selection knob, and the fourth two-position relay, the fourth single-phase opening button, and the fourth single-phase closing button form a fourth opening and closing control loop, a first input end, a second input end, and a first input end, a second input end of the fourth single-phase opening button are connected to each other and to the dc positive electrode, a first output end of the fourth single-phase opening button is connected to the first input end of the fourth two-position relay, a second output end of the fourth single-phase opening button is connected to the third input end of the fourth two-position relay, a first output end of the fourth single-phase closing button is connected to the second input end of the fourth two-position relay, a second output end of the fourth single-phase closing button is connected to the fourth input end of the fourth two-position relay, a first output end of the fourth two, The second output end and the third output end are connected with each other and connected with the input end of the second selection knob, and the output end of the second selection knob is connected with the direct current negative electrode.
Preferably, the input end of the relay protection device is connected with a direct current positive electrode, the first output end and the second output end of the relay protection device are respectively connected with the fifth input end and the sixth input end of any one of the two-position relays, the third output end of the relay protection device is connected with the input end of the audible and visual alarm device, and the output end of the audible and visual alarm device is connected with a direct current negative electrode.
The invention has the beneficial effects that:
1) the relay protection test auxiliary simulator and the relay protection device form an electric loop, the switching-on and switching-off button is adopted to control the relay protection test auxiliary simulator and the relay protection device, the input and output states of a plurality of relay protection devices can be monitored and alarmed, and meanwhile, different protection action conditions in the protection device can be judged through the signal lamp, so that the understanding of the relay protection test auxiliary simulator and the relay protection device is increased.
2) The electric loop is formed by the relay protection test auxiliary simulator and the relay protection device, the field operation state of the protection device can be simulated, the functions of simulating on-site switching of a circuit breaker, remote switching, protection tripping and a circuit breaker state indicator lamp are achieved, meanwhile, the electric device can be simulated to break down, after protection action, the fault signal is indicated, corresponding sound and light alarm is sent out, the protection verification which needs complex feedback for laboratory simulation is fast and convenient, and the environment which is consistent with the field is provided for accident reproduction and experiments.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is an overall electrical schematic diagram of a simulator formed by simulating circuit breakers CB1-CB10 in a relay protection test auxiliary simulator according to an embodiment of the invention;
fig. 2 is an electrical schematic diagram of a relay protection test auxiliary simulator in which a simulation circuit breaker-CB 1 is connected to a relay protection device according to an embodiment of the present invention;
fig. 3 is a second electrical schematic diagram of a relay protection test auxiliary simulator for simulating connection of a circuit breaker-CB 1 and a relay protection device according to an embodiment of the present invention;
fig. 4 is an electrical schematic diagram of a simulated circuit breaker three CB3 in the relay protection test auxiliary simulator according to the embodiment of the invention.
In the figure:
1. a relay protection device; 2. a relay protection test auxiliary simulator; 3. a first double-position relay; 4. a second double-position relay; 5. a third double-position relay; 6. a single-phase opening button I; 7. a single-phase opening button II; 8. a single-phase opening button III; 9. a single-phase closing button I; 10. a single-phase closing button II; 11. a single-phase closing button III; 12. a first three-phase opening and closing switch; 13. a second three-phase opening and closing switch; 14. a three-phase opening and closing switch III; 15. selecting a first knob; 16. a four-position relay; 17. a single-phase opening button IV; 18. a single-phase closing button IV; 19. selecting a second knob; 20. audible and visual alarm device.
Detailed Description
For further explanation of the various embodiments, the drawings which form a part of the disclosure and which are incorporated in and constitute a part of this specification, illustrate embodiments and, together with the description, serve to explain the principles of operation of the embodiments, and to enable others of ordinary skill in the art to understand the various embodiments and advantages of the invention, and, by reference to these figures, reference is made to the accompanying drawings, which are not to scale and wherein like reference numerals generally refer to like elements.
According to the embodiment of the invention, the relay protection test auxiliary simulator is provided.
The invention will now be further described with reference to the accompanying drawings and detailed description, as shown in figures 1-4, the relay protection test auxiliary simulator comprises a relay protection device 1 and a relay protection test auxiliary simulator 2 electrically connected with the relay protection device, wherein, the relay protection test auxiliary simulator 2 comprises a first simulation circuit breaker CB1, a second simulation circuit breaker CB2, a third simulation circuit breaker CB3, a fourth simulation circuit breaker CB4, a fifth simulation circuit breaker CB5, a sixth simulation circuit breaker 6, a seventh simulation circuit breaker CB7, an eighth simulation circuit breaker CB8, a ninth simulation circuit breaker CB9 and a tenth simulation circuit breaker CB10, and the first analog circuit breaker CB1, the second analog circuit breaker CB2, the third analog circuit breaker CB3, the fourth analog circuit breaker CB4, the fifth analog circuit breaker CB5, the sixth analog circuit breaker 6, the seventh analog circuit breaker CB7, the eighth analog circuit breaker CB8, the ninth analog circuit breaker CB9 and the tenth analog circuit breaker CB10 are connected in parallel. In specific application, the relay protection device 1 in the implementation comprises siemens 7UT62 main transformer protection, siemens 7UM62 generator protection, south rui PCS985G generator protection, south rui PCS985BT main transformer protection and south rui RCS931 line protection.
The circuit structure of the first analog circuit breaker CB1 is the same as that of the second analog circuit breaker CB2, and the first analog circuit breaker CB1 and the second analog circuit breaker CB2 respectively comprise a plurality of double-position relays (UEG/C-8DPDT), single-phase opening and closing buttons (LA39-A1-22D), single-phase closing and closing buttons (LA39-A1-22D), three-phase opening and closing switches (LA39-A1-44XS/Kffu) and a selection knob, wherein the double-position relays are used for simulating opening and closing of the circuit breakers and providing opening and closing state feedback, the single-phase opening and closing buttons are used for controlling the closing operation of the double-position relays, the single-phase closing buttons are used for controlling the opening and closing operation of the double-position relays, and the selection knob is used for controlling one or a plurality of groups of input; the circuit structure of the three analog circuit breakers 3, the four analog circuit breakers 4, the five analog circuit breakers 5, the six analog circuit breakers 6, the seven analog circuit breakers 7, the eight analog circuit breakers 8, the three analog circuit breakers CB9 and the ten analog circuit breakers CB10 are the same, and the three analog circuit breakers comprise a plurality of double-position relays used for simulating opening and closing of the circuit breakers and providing opening and closing state feedback, a plurality of single-phase opening buttons used for controlling closing operation of the double-position relays, a plurality of single-phase closing buttons used for controlling opening operation of the double-position relays and selection knobs used for controlling one or more groups of input analog circuit breakers. Specifically should be simultaneously, single-phase separating brake button and single-phase combined floodgate button have the pilot lamp of different colours respectively, for example, single-phase separating brake button's pilot lamp can set up to green, and single-phase combined floodgate button can set up to red, when green light lights promptly, shows the circuit breaker and divides the position, when red light lights, shows the circuit breaker and closes the position.
Specifically, the first analog circuit breaker CB1 comprises a first two-position relay 3, a second two-position relay 4, a third two-position relay 5, a first single-phase opening button 6, a second single-phase opening button 7, a third single-phase opening button 8, a first single-phase closing button 9, a second single-phase closing button 10, a third single-phase closing button 11, a first three-phase opening and closing switch 12, a second three-phase opening and closing switch 13, a third three-phase opening and closing switch 14 and a first selection knob 15.
Specifically, a first switching control loop I is formed by a first two-position relay 3, a first single-phase switching-off button 6, a first single-phase closing button 9 and a first three-phase switching-off switch 12, a first input end and a second input end of the first three-phase switching-off switch 12 are connected with a direct current anode, a first output end of the first three-phase switching-off switch 12 is respectively connected with a first output end of the first single-phase switching-off button 6 and a first input end of the first two-position relay 3, a second output end of the first three-phase switching-off switch 12 is respectively connected with a first output end of the first single-phase switching-off button 9 and a second input end of the first two-position relay 3, a first input end and a second input end of the first single-phase switching-off button 6 are mutually connected with a first input end and a second input end of the first single-phase switching-off button 9 and a direct current anode, a second output end of the first single-phase switching-, and a second output end of the single-phase closing button I9 is connected with a fourth input end of the double-position relay I3.
Specifically, a second two-position relay 4, a second single-phase opening button 7, a second single-phase closing button 10 and a second three-phase opening and closing switch 13 form a second opening and closing control loop, a first input end and a second input end of the second three-phase opening and closing switch 13 are connected with a direct current anode, a first output end of the second three-phase opening and closing switch 13 is respectively connected with a first output end of the second single-phase opening and closing button 7 and a first input end of the second two-position relay 4, a second output end of the second three-phase opening and closing switch 13 is respectively connected with a first output end of the second single-phase closing button 10 and a second input end of the second two-position relay 4, a first input end and a second input end of the second single-phase opening button 7 and a first input end and a second input end of the second single-phase closing button 10 are mutually connected and connected with the direct current anode, a second output end of the second single-phase opening button 7 is connected with a third, and a second output end of the single-phase closing button II 10 is connected with a fourth input end of the double-position relay II 4.
Specifically, a three-position relay three 5, a three-phase opening button 8, a three-phase closing button 11 and a three-phase opening and closing switch three 14 form a three-closing control loop, a first input end and a second input end of the three-phase opening and closing switch three 14 are connected with a direct current anode, a first output end of the three-phase opening and closing switch three 14 is respectively connected with a first output end of the three-phase opening and closing button three 8 and a first input end of the three-position relay three 5, a second output end of the three-phase opening and closing switch three 14 is respectively connected with a first output end of the three-phase closing button three 11 and a second input end of the three-position relay three 5, a first input end and a second input end of the three-phase opening button three 8 and a first input end and a second input end of the three-phase closing button three 11 are mutually connected and connected with the direct current anode, a second output end of the three-phase opening button three 8 is connected with a third input end of the three, and a second output end of the single-phase closing button III 11 is connected with a fourth input end of the double-position relay III 5.
Specifically, the first output end, the second output end and the third output end of the first double-position relay 3, the first output end, the second output end and the third output end of the second double-position relay 4, the first output end, the second output end and the third output end of the third double-position relay 5 are connected in parallel and connected with the input end of a first selection knob 15, and the output end of the first selection knob 15 is connected with a direct current negative electrode.
Specifically, the analog circuit breaker three CB3 includes a four two-position relay 16, a four single-phase opening button 17, a four single-phase closing button 18 and a second selection knob 19, the four two-position relay 16, the four single-phase opening button 17 and the four single-phase closing button 18 form a four switching control circuit, a first input end and a second input end of the four single-phase opening button 17 and a first input end and a second input end of the four single-phase closing button 18 are connected with each other and with a dc positive pole, a first output end of the four single-phase opening button 17 is connected with a first input end of the four two-position relay 16, a second output end of the four single-phase opening button 17 is connected with a third input end of the four two-position relay 16, a first output end of the four single-phase closing button 18 is connected with a second input end of the four two-position relay 16, a second output end of the four single-phase closing button 18 is connected with a fourth input end of the four two-, the first output end, the second output end and the third output end of the four-position relay 16 are connected with each other and connected with the input end of the second selection knob 19, and the output end of the second selection knob 19 is connected with the direct-current negative electrode.
Specifically, the input end of the relay protection device 1 is connected with a direct current positive electrode, a first output end and a second output end of the relay protection device 1 are respectively connected with a fifth input end and a sixth input end of any one of the two-position relays, a third output end of the relay protection device 1 is connected with an input end of an acousto-optic alarm device 20(AD16-30JC) which is used for reflecting the protection action condition of the relay protection device and sending an acousto-optic alarm, and the output end of the acousto-optic alarm device 20 is connected with a direct current negative electrode.
For the convenience of understanding the technical solutions of the present invention, the following detailed description will be made on the working principle or the operation mode of the present invention in the practical process.
In practical application, the on-off of the double-position relay is controlled through the single-phase opening button, the single-phase closing button and the three-phase opening-closing switch, the connection point of the double-position relay controls the single-phase opening button or the single-phase closing button to be on, and signals of the opening and closing positions of the switch are sent to the relay protection device 1, and the relay protection device 1 sends signals to the audible and visual alarm device 2 and sends audible and visual alarm after acting; the auxiliary simulator 2 for the relay protection test can effectively simulate the operation condition of primary equipment of an electrical switch of a field substation, provides related auxiliary conditions for the relay protection equipment, and provides an environment consistent with the field for accident reproduction and test in a laboratory.
In summary, according to the above technical solution of the present invention, the relay protection test auxiliary simulator 2 and the relay protection device 1 form an electrical circuit, and are controlled by the switching-on/off button, so that the input and output states of a plurality of relay protection devices can be monitored and alarmed, and different protection actions in the protection devices can be judged by the signal lamp, thereby increasing the understanding of the input and output states.
In addition, an electric loop is formed by the relay protection test auxiliary simulator 2 and the relay protection device 1, the field operation state of the protection device can be simulated, the functions of simulating on-site switching of a circuit breaker, remote switching, protection tripping and a circuit breaker state indicator lamp are achieved, meanwhile, the fault of the electric device can be simulated, after protection action, fault signals are indicated and corresponding acousto-optic alarms are sent out, the protection verification that the laboratory simulation needs complex feedback is fast and convenient, and the environment which is consistent with the field is provided for accident reproduction and experiments.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (9)
1. An auxiliary simulator for relay protection tests is characterized by comprising a relay protection device (1) and an auxiliary simulator (2) for relay protection tests electrically connected with the relay protection device, wherein the relay protection test auxiliary simulator (2) comprises a simulation circuit breaker one CB1, a simulation circuit breaker two CB2, a simulation circuit breaker three CB3, a simulation circuit breaker four CB4, a simulation circuit breaker five CB5, a simulation circuit breaker six CB6, a simulation circuit breaker seven CB7, a simulation circuit breaker eight CB8, a simulation circuit breaker CB9 nine and a simulation circuit breaker ten CB10, and the simulation circuit breaker CB1, the simulation circuit breaker two CB2, the simulation circuit breaker three CB3, the simulation circuit breaker four CB4, the simulation circuit breaker five CB5, the simulation circuit breaker six CB6, the simulation circuit breaker seven CB7, the simulation circuit breaker eight CB8, the simulation circuit breaker CB9 nine with it is parallelly connected between the simulation circuit breaker ten CB 10.
2. The relay protection test auxiliary simulator of claim 1, wherein the first analog breaker CB1 is the same as the second analog breaker CB2 in circuit structure, the third analog breaker CB3 is the fourth analog breaker CB4, the fifth analog breaker CB5, the sixth analog breaker CB6, the seventh analog breaker CB7, the eighth analog breaker CB8, the ninth analog breaker CB9 and the tenth analog breaker CB10 in circuit structure.
3. The relay protection test auxiliary simulator of claim 2, wherein the first simulated circuit breaker CB1 comprises a first two-position relay (3), a second two-position relay (4), a third two-position relay (5), a first single-phase opening button (6), a second single-phase opening button (7), a third single-phase opening button (8), a first single-phase closing button (9), a second single-phase closing button (10), a third single-phase closing button (11), a first three-phase opening and closing switch (12), a second three-phase opening and closing switch (13), a third three-phase opening and closing switch (14) and a first selection knob (15).
4. The relay protection test auxiliary simulator according to claim 3, wherein the first two-position relay (3), the first single-phase opening and closing button (6), the first single-phase closing and closing button (9) and the first three-phase opening and closing switch (12) form a first opening and closing control loop, a first input end and a second input end of the first three-phase opening and closing switch (12) are both connected with a direct current positive electrode, a first output end of the first three-phase opening and closing switch (12) is respectively connected with a first output end of the first single-phase opening and closing button (6) and a first input end of the first two-position relay (3), a second output end of the first three-phase opening and closing switch (12) is respectively connected with a first output end of the first single-phase opening and closing button (9) and a second input end of the first two-position relay (3), a first input end of the first single-phase opening and closing button (6) is connected with a second input end of the first two-position relay, The second input end of the single-phase switching-on button I (9) is connected with the first input end and the second input end of the single-phase switching-on button I, the second input end of the single-phase switching-off button I (6) is connected with the third input end of the two-position relay I (3), and the second output end of the single-phase switching-on button I (9) is connected with the fourth input end of the two-position relay I (3).
5. The relay protection test auxiliary simulator according to claim 4, wherein the two-position relay II (4), the two single-phase opening and closing button II (7), the two single-phase closing and closing button II (10) and the two three-phase opening and closing switch (13) form a second opening and closing control loop, a first input end and a second input end of the two three-phase opening and closing switch (13) are both connected with the direct current positive pole, a first output end of the two three-phase opening and closing switch (13) is respectively connected with a first output end of the two single-phase opening and closing button II (7) and a first input end of the two double-position relay II (4), a second output end of the two three-phase opening and closing switch (13) is respectively connected with a first output end of the two single-phase closing button (10) and a second input end of the two double-position relay II (4), a first input end of the two single-phase opening and closing button (7) is connected with a second input end of the two single-, The second input end of the single-phase switching-on button II (10) is connected with the first input end and the second input end of the single-phase switching-on button II (10) and is connected with the direct current positive pole, the second output end of the single-phase switching-off button II (7) is connected with the third input end of the two-position relay II (4), and the second output end of the single-phase switching-on button II (10) is connected with the fourth input end of the two-position relay II (4).
6. The relay protection test auxiliary simulator according to claim 5, wherein the three-position relay (5), the three-phase opening and closing button (8), the three-phase closing and closing button (11) and the three-phase opening and closing switch (14) form a third opening and closing control loop, a first input end and a second input end of the three-phase opening and closing switch (14) are both connected with the direct current positive pole, a first output end of the three-phase opening and closing switch (14) is respectively connected with a first output end of the three-phase opening and closing button (8) and a first input end of the three-position relay (5), a second output end of the three-phase opening and closing switch (14) is respectively connected with a first output end of the three-phase closing button (11) and a second input end of the three-position relay (5), a first input end of the three-phase opening and closing button (8) is connected with a second input end of the three-position relay (5), and a first input end of the three-position opening and closing, The second input end of the single-phase switch-on button III (11) is connected with the first input end and the second input end of the single-phase switch-on button III (11) and is connected with the direct current positive pole, the second output end of the single-phase switch-off button III (8) is connected with the third input end of the two-position relay III (5), and the second output end of the single-phase switch-on button III (11) is connected with the fourth input end of the two-position relay III (5).
7. The relay protection test auxiliary simulator of claim 6, wherein the first output end, the second output end and the third output end of the first two-position relay (3), the first output end, the second output end and the third output end of the second two-position relay (4), and the first output end, the second output end and the third output end of the third two-position relay (5) are connected in parallel and connected with the input end of the first selection knob (15), and the output end of the first selection knob (15) is connected with a direct current negative pole.
8. The relay protection test auxiliary simulator according to claim 7, wherein the simulated breaker three CB3 comprises a four-position relay (16), a four-phase opening button (17), a four-phase closing button (18) and a two-selection knob (19), the four-position relay (16), the four-phase opening button (17) and the four-phase closing button (18) form a four-closing and opening control loop, a first input end and a second input end of the four-phase opening button (17) and a first input end and a second input end of the four-phase closing button (18) are connected with each other and with the DC positive pole, a first output end of the four-phase opening button (17) is connected with a first input end of the four-position relay (16), a second output end of the four-phase opening button (17) is connected with a third input end of the four-position relay (16), the first output end of the single-phase closing button four (18) is connected with the second input end of the double-position relay four (16), the second output end of the single-phase closing button four (18) is connected with the fourth input end of the double-position relay four (16), the first output end, the second output end and the third output end of the double-position relay four (16) are connected with each other and connected with the input end of the selection knob two (19), and the output end of the selection knob two (19) is connected with the direct current negative pole.
9. A relay protection test auxiliary simulator according to claim 8, wherein the input terminal of the relay protection device (1) is connected to the positive dc terminal, the first output terminal and the second output terminal of the relay protection device (1) are respectively connected to the fifth input terminal and the sixth input terminal of any one of the two-position relays, the third output terminal of the relay protection device (1) is connected to the input terminal of the audible and visual alarm device (20), and the output terminal of the audible and visual alarm device (20) is connected to the negative dc terminal.
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