CN107202928B - A kind of backup power automatic input device simulates circuit breaker - Google Patents
A kind of backup power automatic input device simulates circuit breaker Download PDFInfo
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- CN107202928B CN107202928B CN201710478846.XA CN201710478846A CN107202928B CN 107202928 B CN107202928 B CN 107202928B CN 201710478846 A CN201710478846 A CN 201710478846A CN 107202928 B CN107202928 B CN 107202928B
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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
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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
- G01R31/3271—Testing of circuit interrupters, switches or circuit-breakers of high voltage or medium voltage devices
- G01R31/3272—Apparatus, systems or circuits therefor
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Abstract
本发明提供一种备用电源自动投入装置模拟断路器，可在备自投装置调试验收时使用，包括箱体及布置于箱体表面和箱体内的电气元件。所述的电气元件包括布置于箱体面板上的多个断路器、多个指示灯和多个外部接线插孔。所述的电气元件还包括布置于箱体内的多个跳位继电器TWJ1、合位继电器HWJ1、手跳继电器STJ1、合后位继电器HHJ1、合闸线圈HQ、跳闸线圈TQ和多个电阻R。此模拟断路器布置按一次系统运行方式布置，实现进行多种备自投方式的试验，本装置功能齐全，操作方便，能够提供备自投动作试验所需所有开关，提供备自投动作试验所需的开入量，使备自投动作过程更加直观。
The invention provides a simulated circuit breaker for a standby power automatic input device, which can be used during debugging and acceptance of the standby automatic input device. It includes a box body and electrical components arranged on the surface of the box body and inside the box body. The electrical components include multiple circuit breakers, multiple indicator lights and multiple external wiring jacks arranged on the cabinet panel. The electrical components also include a plurality of trip relays TWJ1, a closing relay HWJ1, a manual trip relay STJ1, a closing relay HHJ1, a closing coil HQ, a tripping coil TQ and a plurality of resistors R arranged in the box. This simulated circuit breaker is arranged according to the primary system operation mode, enabling the testing of multiple automatic switching modes. This device has complete functions and is easy to operate. It can provide all switches required for the automatic switching action test and provide a place for the automatic switching action test. The required input amount makes the preparation and self-investment action process more intuitive.
Description
Technical Field
The invention relates to the technical field of spare power automatic switching device tests and simulated circuit breakers, in particular to a simulated circuit breaker of a spare power automatic switching device.
Background
The conventional automatic backup switching device simulates a circuit breaker, only provides the switches of the parts required by the automatic backup switching operation test, does not provide all the switches in the whole automatic backup switching operation process, and meanwhile, the simulated circuit breaker is not consistent with the operation mode of a primary system, has imperfect functions and cannot meet the required switching-in quantity of the automatic backup switching device.
Disclosure of Invention
In order to solve the problems in the background art, the invention provides the automatic standby power input device simulation breaker which can be used in the automatic standby power input device debugging test, the simulation breaker is arranged according to a one-time system operation mode, the test of multiple automatic standby power input modes is realized, the device is complete in function and convenient to operate, all switches required by the automatic standby power input operation test can be provided, the input quantity required by the automatic standby power input operation test is provided, and the automatic standby power input operation process is more visual.
In order to achieve the above purpose, the invention is realized by adopting the following technical scheme:
a simulated circuit breaker of an automatic switching device of a standby power supply comprises a box body and electric elements arranged on the surface of the box body and in the box body.
The electrical components include a plurality of circuit breakers, a plurality of indicator lights, and a plurality of external wiring jacks disposed on the cabinet panel.
The electric element further comprises a plurality of trip relays TWJ1, a trip relay HWJ1, a hand trip relay STJ1, a trip relay HHJ1, a switching coil HQ, a trip coil TQ and a plurality of resistors R which are arranged in the box body.
The box body panel draws a connection diagram according to a common primary system operation structure, a plurality of circuit breakers, a plurality of indicator lamps and external wiring jacks which are related to primary system elements are arranged around the connection diagram, and the primary system operation structure comprises the following elements: transformers 1B, 2B, a bus ML, a line 1L, a line 2L, a capacitor 1C, and a capacitor 2C, which are main and standby to each other.
The circuit breakers are used as analog switch operations and are used for manually simulating the switching state of the circuit breakers, and the circuit breakers comprise a high-voltage side 1B high-voltage circuit breaker of a transformer 1B, a low-voltage side 1B low-voltage circuit breaker of the transformer 1B, a high-voltage side 2B high-voltage circuit breaker of a transformer 2B, a low-voltage side 2B low-voltage circuit breaker of the transformer 2B, a bus-tie ML circuit breaker, a circuit 1L circuit breaker, a circuit 2L circuit breaker, a capacitor 1C circuit breaker and a capacitor 2C circuit breaker.
The number of the indicator lamps and the external wiring jacks is 9, and the indicator lamps and the external wiring jacks are respectively arranged around all elements according to the specific drawing positions of the transformers 1B high, 1B low, 2B high and 2B low, the bus-tie ML, the circuit 1L, the circuit 2L, the capacitor 1C and the capacitor 2C.
The external wiring jacks comprise a public end jack, a wire jack and a jumper jack, and are respectively connected with the hand-in signal end and the hand-out signal end of each element of the external primary system.
The number of the electric elements arranged in the box body is 9, each set corresponds to the elements in the corresponding primary system, and each set is connected into the corresponding analog circuit breaker loop in the same connection mode.
The coil of the jump relay TWJ1 is connected with the resistor R1 in series and then connected with an external hand-on signal wiring point in parallel, and a loop after the parallel connection is connected with the normally closed contact DL-1 and the closing coil HQ of the auxiliary contact of the breaker on the panel of the box body in series, and two ends of the loop are connected to the positive +KM and the negative-KM ends of a power supply to form the jump relay and the closing loop.
The coil of the combining relay HWJ1 is connected in series with a resistor R2 and then connected in parallel with an external hand-tripping signal wiring point, and a loop after the parallel connection is connected in series with a normally open contact DL-2 of an auxiliary contact of a circuit breaker on a box panel and a tripping coil TQ, and two ends of the loop are connected to positive +KM and negative-KM ends of a power supply to form the combining relay and a tripping loop.
After the coil of the hand-jumping relay STJ1 is connected with a diode in series, two ends of the coil are respectively connected to an external hand-jumping signal wiring point 1D14 and a 1D28 end of a normally open auxiliary contact DL-2 of the panel breaker.
The after-closing relay HHHJ 1 coil is a double-coil holding relay, and two ends of the after-closing relay HHJ1 coil are respectively connected with an external hand-closing signal line point 1D13 and the negative electrode-KM end of a power supply after being connected with a resistor R3 in series; the two ends of the split gate coil are respectively connected with an external hand-jumping signal wiring point 1D14 and the negative electrode-KM end of the power supply after being connected with a resistor R4 in series.
The resistors R1 and R2 are also respectively connected with a jump indicator light LED1 and a closing indicator light LED2 for opening and closing indication.
The side of the box body is also provided with a main power switch DK and a power socket, and the positive +KM and negative-KM ends of the operation power supply of the analog circuit breaker are connected with the power socket through the main power switch DK and are connected with an external 220V direct current power supply through the power socket.
The auxiliary contact terminals of the jump relay TWJ1, the close relay HWJ1, the close relay HHHJ 1 and the hand jump relay STJ1 are connected to an external wiring terminal, and are connected with an external spare power automatic switching test device through the wiring terminal, so that a useful control signal is provided for the test of the spare power automatic switching device.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention relates to a simulated breaker of an automatic switching device of a standby power supply, which is characterized in that a connection diagram is drawn on a box panel according to a common primary system operation structure, the connection diagram is suitable for most substations, the arrangement and control functions of electric operation and display elements are set according to the connection diagram, and the simulated switch breaker circuits of the primary elements in all power system operation diagrams are integrated, so that the simulated breaker can simulate the breaker functions of the primary elements in all power system operation diagrams at the same time, and is convenient to use and check.
2. The automatic switching-on device for the standby power supply is provided with a plurality of circuit breakers used as analog switch operation, can manually simulate the switching-on and switching-off state of the circuit breakers, can enable the circuit breakers which are arranged on a panel and are manually operated to be matched with external hand-on and hand-off signals, when the manual operation circuit breakers of the panel are switched off, the jump indicator lamp is on, external hand-on operation can be conducted, the external hand-off operation is invalid, after the hand-on operation, the jump indicator lamp is off, when the manual circuit breakers of the panel are switched on, the close indicator lamp is on, external hand-off operation can be conducted, the external hand-on operation is invalid, and after the external hand-off operation, the close indicator lamp is off.
3. The automatic switching-on device for the standby power supply simulates the circuit breaker, not only simulates the manual switching-on and the manual tripping operation of the circuit breaker, but also simulates the actual switching-on and switching-off state of the circuit breaker, so that the switching-off, switching-on, tripping, switching-on, switching-off rear position and manual tripping position of the circuit breaker are consistent with the working modes of the actual circuit breaker.
4. According to the automatic switching-on device for the standby power supply, disclosed by the invention, the circuit breaker is simulated by the automatic switching-on device for the standby power supply, the internal circuit structure is subjected to multifunction design, and the combination relay HWJ and the trip relay TWJ1 can perform correct actions according to actions of the manual circuit breaker on the panel and actions of external manual and trip signals and are matched with corresponding indicator lamps for indication.
5. The invention relates to an analog breaker of an automatic switching device of a standby power supply, which adopts a plurality of relay coils of different types to be used in series, and realizes different action modes of relays with different voltage classes by using a voltage dividing resistor R.
6. The invention provides four switching value signals for a standby power automatic switching device simulation breaker, which is used for a standby power automatic switching device test.
7. The automatic standby power switching device simulation breaker can directly take direct current from the standby power automatic switching device for use, and avoids direct current mixing.
Drawings
FIG. 1 is a schematic diagram of a case of a simulated circuit breaker of an automatic switching device for standby power supply according to the present invention;
FIG. 2 is a schematic diagram of a case panel of a simulated circuit breaker of the automatic switching device for standby power supply of the present invention;
FIG. 3 is a schematic circuit diagram of a simulated circuit breaker of the automatic switching device for standby power supply of the present invention;
FIG. 4 is a schematic diagram of a power supply circuit of a simulated circuit breaker of an automatic standby power switching device of the present invention;
fig. 5 is a diagram showing the switching value contact output of an analog circuit breaker of an automatic switching device for standby power supply according to the present invention.
Wherein: 1-a box body 2-a power jack, a power switch 3-an external hand-in and hand-out signal wiring jack 4-a breaker 5-indicator lamp of manual analog operation.
Detailed Description
The following detailed description of the embodiments of the invention is provided with reference to the accompanying drawings.
As shown in fig. 1, an automatic standby power switching device simulation circuit breaker comprises a box body 1 and electric elements arranged on the surface of the box body and in the box body.
The electric components include a plurality of circuit breakers 4, a plurality of indicator lamps 5 and a plurality of external connection jacks 3 arranged on the panel of the case.
The electric element further comprises a plurality of trip relays TWJ1, a trip relay HWJ1, a hand trip relay STJ1, a trip relay HHJ1, a switching coil HQ, a trip coil TQ and a plurality of resistors R which are arranged in the box body.
As shown in fig. 2, the box panel draws a connection diagram according to a common primary system operation structure, and a plurality of circuit breakers 4, a plurality of indicator lamps 5 and external connection jacks 3 associated with primary system elements are arranged around the connection diagram, wherein the primary system operation structure comprises the following elements: transformers 1B, 2B, a bus ML, a line 1L, a line 2L, a capacitor 1C, and a capacitor 2C, which are main and standby to each other.
The circuit breakers 4 are used as analog switch operations for manually simulating the switching state of the circuit breakers, and comprise a high-voltage side 1B high-voltage circuit breaker of the transformer 1B, a low-voltage side 1B low-voltage circuit breaker of the transformer 1B, a high-voltage side 2B high-voltage circuit breaker of the transformer 2B, a low-voltage side 2B low-voltage circuit breaker of the transformer 2B, a bus-tie ML circuit breaker, a circuit 1L circuit breaker, a circuit 2L circuit breaker, a capacitor 1C circuit breaker and a capacitor 2C circuit breaker.
The number of the indicator lamps 5 and the external wiring jacks 3 is 9, and the indicator lamps and the external wiring jacks are respectively arranged around all the elements according to the specific drawing positions of the transformers 1B high, 1B low, 2B high and 2B low, the bus connection ML, the circuit 1L, the circuit 2L, the capacitor 1C and the capacitor 2C.
The external wiring jacks 3 comprise a public terminal jack, a wire jack and a jumper jack, and are respectively connected with a hand-in signal end and a hand-out signal end of each element of the external primary system.
The number of the electric elements arranged in the box body 1 is 9, each set corresponds to the elements in the respective primary system, and each set is connected into the respective analog circuit breaker loop in the same connection mode.
As shown in fig. 3, the coil of the skip relay TWJ1 is connected in series with the resistor R1 and then connected in parallel with an external hand-operated signal connection point, and the loop after the parallel connection is connected in series with the normally closed contact DL-1 and the closing coil HQ of the auxiliary contact of the circuit breaker on the panel of the box body, and both ends of the loop are connected to the positive +km and negative-KM ends of the power supply to form the skip relay and the closing loop.
The coil of the combining relay HWJ1 is connected in series with a resistor R2 and then connected in parallel with an external hand-tripping signal wiring point, and a loop after the parallel connection is connected in series with a normally open contact DL-2 of an auxiliary contact of a circuit breaker on a box panel and a tripping coil TQ, and two ends of the loop are connected to positive +KM and negative-KM ends of a power supply to form the combining relay and a tripping loop.
After the coil of the hand-jumping relay STJ1 is connected with a diode in series, two ends of the coil are respectively connected to an external hand-jumping signal wiring point 1D14 and a 1D28 end of a normally open auxiliary contact DL-2 of the panel breaker.
The after-closing relay HHHJ 1 coil is a double-coil holding relay, and two ends of the after-closing relay HHJ1 coil are respectively connected with an external hand-closing signal line point 1D13 and the negative electrode-KM end of a power supply after being connected with a resistor R3 in series; the two ends of the split gate coil are respectively connected with an external hand-jumping signal wiring point 1D14 and the negative electrode-KM end of the power supply after being connected with a resistor R4 in series.
The resistors R1 and R2 are also respectively connected with a jump indicator light LED1 and a closing indicator light LED2 for opening and closing indication.
As shown in fig. 4, the side surface of the box body is further provided with a main power switch DK and a power socket, and the positive +km and negative-KM ends of the operation power supply of the analog circuit breaker are connected with the power socket through the main power switch DK and are connected with an external 220V direct current power supply through the power socket.
As shown in fig. 5, the analog circuit breaker of the present invention further guides auxiliary contact terminals of the jumper relay TWJ1, the on-line relay HWJ1, the off-line relay HHJ1, and the hand jumper relay STJ1 to external connection terminals, and connects the external spare power automatic switching test equipment through the connection terminals, thereby providing useful control signals for the test of the spare power automatic switching equipment.
The hand-on signal contact and the hand-off signal contact are connected with the +KM end of the power supply and the HHJ1 coil of the relay after switching on, and are also connected with the relay after switching off and the switching on loop and the relay after switching on and the tripping loop.
The hand-in signal contact and the hand-out signal contact can also be used for carrying out hand-in operation and hand-out operation by using prefabricated jack type shorting bars.
The jump indicator light LED1 is green, and the combination indicator light LED2 is red.
The simulated circuit breaker box 1 of the invention is 600mm long by 400mm wide by 200mm high.
The relays in the electric elements are mainly divided into two types, the trip relay TWJ1, the close relay HWJ and the close relay HHHJ 1 are 110V relays with the same voltage level, the close coil HQ and the trip coil TQ are 220V relays with the same voltage level, the two voltage levels are different, the trip relay TWJ1, the close relay HWJ and the close relay HHJ1 need to be connected in series with a voltage dividing resistor R for attraction, and the close coil HQ and the trip coil TQ cannot be connected in series with the voltage dividing resistor R.
The resistance value of the voltage dividing resistor R is matched with the resistance values of the two coils when being designed, so that the voltage level after voltage division is consistent with the voltage level of the two relays, and the two relays are ensured to act according to the design.
In addition, the hand-tripping relay STJ1 is a small-resistance low-voltage direct-current relay customized by manufacturers, and a small resistor of about 10 ohms is connected in parallel to the coil in a customized manner, so that the external resistance of the coil is only about 10 ohms, the action voltage is direct current (5V), when the hand-tripping relay STJ1 is connected in parallel with the voltage dividing resistor R2, the resistor R2 can be regarded as a short circuit state, and when the hand-tripping relay STJ1 is connected in series with the tripping coil TQ with the resistance value of about 300 ohms, the hand-tripping relay STJ1 and the tripping coil TQ can be ensured to act simultaneously.
The 9 sets of electric elements of the device form 9 sets of respective analog circuit breaker circuit structures, the structures and the working principles are the same, taking a high-voltage side loop of the transformer 1B as an example, and the working principles are as follows:
1. when the high-voltage circuit breaker of the circuit breaker 1B on the upper panel of the circuit breaker box body is simulated, the circuit breaker box body is in a simulated circuit breaker opening state:
1.1 when the high-voltage circuit breaker of the circuit breaker 1B on the upper panel of the simulated circuit breaker box body is switched off, the normally closed contact DL-1 is in a closed state, at the moment, the trip relay and the switching-on loop are connected with a power supply, the coil of the trip relay TWJ1 is attracted, the trip indicator light LED1 on the resistor R1 is lighted, and the system is indicated to be in a trip state;
at this time, as the jump relay and the resistor R1 in the closing loop play a role in voltage division, the closing coil HQ cannot reach the attraction voltage and cannot be attracted;
at this time, the external hand-on signal can be used for carrying out hand-on action, after the hand-on action, the skip relay TWJ1 and the resistor R1 are short-circuited by the hand-on loop, the skip relay TWJ1 is disconnected, and the skip indicator light LED1 is turned off; at this time, the closing coil HQ is engaged, the analog breaker device is in a manual state, and the closing coil of the relay HHJ1 is engaged.
1.2 when the high breaker of the breaker 1B on the upper panel of the simulated breaker box body is opened, the normally open contact DL-2 is in an open state, at the moment, the on-position relay and the tripping circuit are not connected with a power supply, the on-position indicator light LED2 is not on, the external hand jump signal is invalid operation, and the external hand jump is invalid.
2. When the high-voltage circuit breaker of the circuit breaker 1B on the upper panel of the circuit breaker box body is switched on, the switching-off state of the circuit breaker is simulated:
2.1 when the high-voltage circuit breaker of the circuit breaker 1B on the upper panel of the simulated circuit breaker box body is closed, the normally open contact DL-2 is in a closed state, at the moment, the closing relay and the tripping circuit are connected with a power supply and are attracted with the coil of the position relay HWJ1, and the tripping indicator light LED2 on the resistor R2 is lighted to indicate that the system is in a closing state;
at this time, as the resistor R2 in the trip circuit and the closing relay plays a role in voltage division, the trip coil TQ cannot reach the attraction voltage and cannot be attracted;
at this time, the external hand-jumping signal can be received to perform hand-jumping, after the hand-jumping action, the on-position relay HWJ and the resistor R2 are short-circuited by the hand-jumping loop, the on-position relay HWJ1 is disconnected, and the on-position indicator light LED2 is turned off; at this time, the trip coil TQ and the hand trip relay STJ1 are engaged, and the simulated circuit breaker device is in a hand trip state, and the opening coil of the relay HHJ1 is engaged.
The coil connection structure of the hand trip relay STJ1 enables the tripping coil to act only through the coil of the STJ1, prevents the tripping coil TQ from skipping the action of the hand trip relay STJ1, and enables the contact of the hand trip relay STJ1 to be inconsistent with the action of the tripping coil.
2.2 when the high breaker of the breaker 1B on the upper panel of the simulated breaker box body is closed, the normally closed contact DL-1 is in an open state, at the moment, the trip relay and the closing loop are not connected with a power supply, the trip indicator lamp LED1 is not on, the external hand-in signal is in an invalid operation, and the external hand-in action is invalid.
The principle of the relay HHHJ 1 after the combination is as follows:
when the hand-on signal is on, the closing coil of the relay at the rear position is attracted to be expressed as a closing state, and at the moment, no matter the circuit breaker DL is in a closing state or a separating state, HHJ1 is in the closing state, and only when the hand-off signal is on, the separating coil of the relay at the rear position is attracted to be in the separating state.
The above examples are implemented on the premise of the technical scheme of the present invention, and detailed implementation manners and specific operation processes are given, but the protection scope of the present invention is not limited to the above examples. The methods used in the above examples are conventional methods unless otherwise specified.
Claims (6)
1. A simulated circuit breaker of an automatic standby power switching device comprises a box body and electric elements arranged on the surface of the box body and in the box body;
the electric element comprises a plurality of circuit breakers, a plurality of indicator lamps and a plurality of external wiring jacks, wherein the circuit breakers, the indicator lamps and the external wiring jacks are arranged on a panel of the box body;
the electric element also comprises a plurality of trip relays TWJ1, a trip relay HWJ1, a hand trip relay STJ1, a trip relay HHJ1, a switching coil HQ, a tripping coil TQ and a plurality of resistors R which are arranged in the box body;
the box body panel draws a connection diagram according to a primary system operation structure, a plurality of circuit breakers, a plurality of indicator lamps and external wiring jacks which are related to primary system elements are arranged around the connection diagram, and the primary system operation structure comprises the following elements: transformers 1B, 2B, bus ML, line 1L, line 2L, capacitor 1C and capacitor 2C which are main and standby;
the plurality of circuit breakers are used as analog switch operations and are used for manually simulating the switching state of the circuit breakers, and comprise a high-voltage side 1B high-voltage circuit breaker of a transformer 1B, a low-voltage side 1B low-voltage circuit breaker of the transformer 1B, a high-voltage side 2B high-voltage circuit breaker of a transformer 2B, a low-voltage side 2B low-voltage circuit breaker of the transformer 2B, a bus-tie ML circuit breaker, a circuit 1L circuit breaker, a circuit 2L circuit breaker, a capacitor 1C circuit breaker and a capacitor 2C circuit breaker;
the number of the indicator lamps and the external wiring jacks is 9, and the indicator lamps and the external wiring jacks are respectively arranged around all elements according to the specific drawing positions of the transformers 1B high, 1B low, 2B high and 2B low, the bus-tie ML, the circuit 1L, the circuit 2L, the capacitor 1C and the capacitor 2C;
the external wiring jacks comprise a public end jack, a wire joint jack and a jumper wire jack, and are respectively connected with a hand-in signal end and a hand-out signal end of each element of the external primary system;
the number of the electric elements arranged in the box body is 9, each set corresponds to the elements in the corresponding primary system, and each set is connected into a corresponding simulated circuit breaker loop in the same connection mode;
the coil of the jump relay TWJ1 is connected with the resistor R1 in series and then connected with an external hand-operated signal wiring point in parallel, and a loop after the parallel connection is connected with the normally closed contact DL-1 and the closing coil HQ of the auxiliary contact of the circuit breaker on the panel of the box body in series, and two ends of the loop are connected to the positive +KM and the negative-KM ends of the power supply to form a jump relay and a closing loop;
the coil of the combining relay HWJ1 is connected in series with a resistor R2 and then connected in parallel with an external hand-tripping signal wiring point, and a loop after the parallel connection is connected in series with a normally open contact DL-2 of an auxiliary contact of a circuit breaker on a box panel and a tripping coil TQ, and two ends of the loop are connected to positive +KM and negative-KM ends of a power supply to form the combining relay and a tripping loop.
2. The analog circuit breaker of claim 1, wherein after the coil of the hand trip relay STJ1 is connected in series with a diode, two ends of the coil are respectively connected to the external hand trip signal wiring point 1D14 and the 1D28 end of the normally open auxiliary contact DL-2 of the panel circuit breaker.
3. The simulated circuit breaker of the automatic switching device of the standby power supply as claimed in claim 1, wherein the switching relay HHHJ 1 coil is a double-coil holding relay, and two ends of the switching relay HHHJ 1 coil are respectively connected with an external hand-operated signal line point 1D13 and a negative electrode-KM end of the power supply after being connected with a resistor R3 in series; the two ends of the split gate coil are respectively connected with an external hand-jumping signal wiring point 1D14 and the negative electrode-KM end of the power supply after being connected with a resistor R4 in series.
4. The simulated circuit breaker of the automatic switching device of the standby power supply according to claim 1, wherein the resistors R1 and R2 are respectively and also connected with a jump indicator light LED1 and a closing indicator light LED2 for switching off and switching on indication.
5. The automatic standby power switching device simulation breaker according to claim 1, wherein a main power switch DK and a power socket are further arranged on the side face of the box body, and the positive pole +KM and the negative pole-KM ends of the operation power supply of the simulation breaker are connected with the power socket through the main power switch DK and are connected with an external 220V direct current power supply through the power socket.
6. The simulated circuit breaker of the automatic switching device of the standby power supply according to claim 1, wherein auxiliary contact terminals of the skip relay TWJ1, the close relay HWJ1, the close relay HHHJ 1 and the hand skip relay STJ1 are connected to external wiring terminals and are connected with an external standby power supply automatic switching test device through the wiring terminals, and a useful control signal is provided for the test of the standby power supply automatic switching device.
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| CN201710478846.XA CN107202928B (en) | 2017-06-22 | 2017-06-22 | A kind of backup power automatic input device simulates circuit breaker |
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| CN201710478846.XA CN107202928B (en) | 2017-06-22 | 2017-06-22 | A kind of backup power automatic input device simulates circuit breaker |
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| CN107202928B true CN107202928B (en) | 2023-10-20 |
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| CN108535644A (en) * | 2018-06-26 | 2018-09-14 | 国网黑龙江省电力有限公司齐齐哈尔供电公司 | Portable simulation breaker and test method |
| CN110988410A (en) * | 2019-12-10 | 2020-04-10 | 国网福建省电力有限公司 | Auxiliary device for self-injection test and method of use |
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