CN213181921U - Spare power automatic switching test device - Google Patents
Spare power automatic switching test device Download PDFInfo
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- CN213181921U CN213181921U CN202022257706.XU CN202022257706U CN213181921U CN 213181921 U CN213181921 U CN 213181921U CN 202022257706 U CN202022257706 U CN 202022257706U CN 213181921 U CN213181921 U CN 213181921U
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Abstract
The utility model discloses a spare power automatic switching testing arrangement, the device mainly includes relay protection tester, inlet wire contactor, control switch, separating brake relay, position indicator, can realize the spare power automatic switching functional test and the examination function of different system operation modes such as single female double inlet wire or single female segmentation, the action logic is simple reliable, and easy operation, furthest simulates the on-the-spot actual equipment action condition, the test of the spare power automatic switching function of the various different operation modes of adaptation, the device constitutes simple with low costs of equipment, economy is suitable for.
Description
Technical Field
The utility model relates to a testing arrangement, especially a spare power automatic switching testing arrangement.
Background
In order to ensure the reliability of power supply of a power system, a backup automatic switching device is widely used in a power plant, a substation and the like, the backup automatic switching device is used for automatically switching into a backup power supply when a working power supply loses power, and the action of the backup automatic switching device needs to judge various conditions such as voltage, a position of a circuit breaker, a locking condition, a starting condition and the like.
The existing spare power automatic switching device test in the market generally adopts manual disconnection air circuit breaker to simulate bus voltage loss and simultaneously adopts button or switch manual simulation circuit breaker position to carry out spare power automatic switching device test, this kind of mode test wiring is complicated, and the manual control cooperation is not good to be unmatched with the spare power automatic switching device action and can lead to the action test of spare power automatic switching unsuccessfully, it still tests the cooperation problem to be difficult to judge spare power automatic switching device logic problem, artificial influence factor is big, the test efficiency is low, and wiring error easily leads to short circuit or tester to electrocute, the risk is high.
Disclosure of Invention
The utility model aims at providing a spare power automatic switching testing arrangement can realize single female segmentation, single female two inlet wires spare power automatic switching device or realize testing and the spare power automatic switching action logic examination function of spare power automatic switching functional device through internal logic. The technical scheme of the utility model is that: a spare power automatic switching test device is characterized in that: the automatic switching device comprises a relay protection tester (1), a 1# incoming line contactor (2), a 2# incoming line contactor (3), a 1# incoming line closing contactor (4), a 2# incoming line closing contactor (5), a sectional closing contactor (6), a 1# incoming line voltage control switch (7), a 2# incoming line voltage control switch (8), a 1# incoming line breaker control switch (9), a 2# incoming line breaker control switch (10), a sectional breaker control switch (11), a 1# incoming line tripping relay (12), a 2# incoming line tripping relay (13), a sectional tripping relay (14), a 1# incoming line breaker position indicator lamp (15), a 2# incoming line breaker position indicator lamp (16), a sectional breaker position indicator lamp (17), a test terminal (18) and a standby automatic switching pressing plate (19); the connection of the voltage loop is as follows: three contacts of the 1# incoming line contactor (2) are connected with three contacts of the 1# incoming line closing contactor (4) in series, three contacts of the 2# incoming line contactor (3) are connected with three contacts of the 2# incoming line closing contactor (5) in series, and input ends of the three contacts of the 1# incoming line contactor (2) and input ends of the three contacts of the 2# incoming line contactor (3) are connected to a three-phase output end of the relay protection tester (1) after being respectively short-circuited; the control loop power supply adopts direct current + KM and-KM for power supply, a closing normally open contact of a 1# incoming line voltage control switch (7) is connected with a normally open contact of a 1# incoming line contactor (2) in parallel and then connected with a coil of the 1# incoming line contactor (2) and a separating normally closed contact of the 1# incoming line voltage control switch (7) in series, a closing normally open contact of a 2# incoming line voltage control switch (8) is connected with a normally open contact of a 2# incoming line contactor (3) in parallel and then connected with a coil of the 2# incoming line contactor (3) and a separating normally closed contact of the 2# incoming line voltage control switch (8) in series, a closing normally open contact of a 1# incoming line breaker control switch (9) is connected with a normally open contact of a 1# incoming line closing contactor (4) in parallel and then connected with a normally closed contact of a 1# incoming line separating brake relay (12) and a coil of the 1# incoming line closing contactor (4) in series, a closing normally open contact of a 2 The normally open contact is connected in parallel with the normally closed contact of the 2# incoming line tripping relay (13) and the coil of the 2# incoming line closing contactor (5) in series, and the closing normally open contact of the sectional breaker control switch (11) is connected in parallel with the normally open contact of the sectional closing contactor (6) and then connected in series with the normally closed contact of the sectional tripping relay (14) and the coil of the sectional closing contactor (6); the separating brake normally open contact of 1# inlet wire circuit breaker control switch (9) and the normally open contact of 1# inlet wire combined floodgate contactor (4), the coil of 1# inlet wire separating brake relay (12) is established ties, the separating brake normally open contact of 2# inlet wire circuit breaker control switch (10) and the normally open contact of 2# inlet wire combined floodgate contactor (5), the coil of 2# inlet wire separating brake relay (13) is established ties, the separating brake normally open contact of segmentation circuit breaker control switch (11) and the normally open contact of segmentation combined floodgate contactor (6), the coil of segmentation separating brake relay (14) is established ties.
A spare power automatic switching test device is characterized in that: alternating current contactors are adopted in the 1# incoming line contactor (2), the 2# incoming line contactor (3), the 1# incoming line closing contactor (4), the 2# incoming line closing contactor (5) and the section closing contactor (6).
A spare power automatic switching test device is characterized in that: the 1# incoming line tripping relay (12), the 2# incoming line tripping relay (13) and the sectional tripping relay (14) adopt direct current relays.
A spare power automatic switching test device is characterized in that: the 1# incoming line breaker position indicator lamp (15), the 2# incoming line breaker position indicator lamp (16) and the sectional breaker position indicator lamp (17) adopt double-color indicator lamps which are red and green; the normally open contact of 1# inlet wire combined floodgate contactor (4) connects to the red lamp input of 1# inlet wire circuit breaker position indication lamp (15), the normally closed contact of 1# inlet wire combined floodgate contactor (4) connects to the green lamp input of 1# inlet wire circuit breaker position indication lamp (15), the normally open contact of 2# inlet wire combined floodgate contactor (5) connects to the red lamp input of 2# inlet wire circuit breaker position indication lamp (16), the normally closed contact of 2# inlet wire combined floodgate contactor (5) connects to the green lamp input of 2# inlet wire circuit breaker position indication lamp (16), the normally open contact of segmentation combined floodgate contactor (6) connects to the red lamp input of segmentation circuit breaker position indication lamp (17), the normally closed contact of segmentation combined floodgate contactor (6) connects to the green lamp input of segmentation circuit breaker position indication lamp (17).
A spare power automatic switching test device is characterized in that: the test device comprises two ends of a spare power automatic switching device pressing plate (19), normally open and normally closed contacts of a 1# incoming line closing contactor (4), normally open and normally closed contacts of a 2# incoming line closing contactor (5), normally open contacts of a 1# incoming line breaker control switch (9), normally open contacts of a 2# incoming line breaker control switch (10), normally open contacts of a sectional closing contactor (6) and normally closed contacts of the sectional closing contactor (6) which are connected to a test terminal (18).
The utility model discloses a theory of operation:
there are generally two ways for the backup power automatic switch: as can be seen from fig. 1, the 1# incoming line contactor (2) is used for controlling the 1# incoming line voltage, the 2# incoming line contactor (3) is used for controlling the 2# incoming line voltage, the 1# incoming line closing contactor (4) is used for controlling the 1# bus voltage and simultaneously serves as a 1# incoming line breaker, and the 2# incoming line closing contactor (5) is used for controlling the 2# bus voltage and simultaneously serves as a 2# incoming line breaker.
As can be seen from fig. 2, during testing, a direct-current power supply is switched on, the relay protection tester (1) outputs a rated voltage line voltage of 100V, when the relay protection tester is used for a single bus segment, the 1# incoming line voltage control switch (7) rotates to a switching-on position, at this time, a switching-on normally-open contact of the 1# incoming line voltage control switch (7) is closed, a coil of the 1# incoming line contactor (2) is powered through a switching-off normally-closed contact of the 1# incoming line voltage control switch (7), and a normally-open contact of the 1# incoming line contactor (2) is closed to form a self-holding loop so that the coil of the 1# incoming line contactor (2) always has a point; at the moment, a 1# incoming line breaker control switch (9) is rotated to a switching-on position, a switching-on normally open contact of the 1# incoming line breaker control switch (9) is closed, a coil of the 1# incoming line switching-on contactor (4) is powered on to act through a normally closed contact of a 1# incoming line switching-off relay (12), a normally open contact of the 1# incoming line switching-on contactor (4) is closed to form a self-holding loop, the coil of the 1# incoming line switching-on contactor (4) always has point holding action, a spare automatic switching device detects that a bus of an I section has voltage, meanwhile, the normally open contact of the 1# incoming line switching-on contactor (4) is closed to enable a 1# incoming line breaker position indicator lamp (15) to be electrified and bright red to represent 1# incoming line switching-on, a 2# incoming line voltage control switch (8) is rotated to the switching-on position, the normally open contact of the 2# incoming line voltage control switch (8) is closed, and a coil of the 2# incoming line Electrically acting, wherein a normally open contact of the 2# incoming line contactor (3) is closed to form a self-holding loop, so that a coil of the 2# incoming line contactor (3) always keeps acting with a point; at the moment, a 2# incoming line breaker control switch (10) is rotated to a switching-on position, a switching-on normally open contact of a 2# incoming line breaker control switch (20) is closed, a coil of a 2# incoming line switching-on contactor (5) is electrified to act through a normally closed contact of a 1# incoming line switching-off relay (13), a normally open contact of the 2# incoming line switching-on contactor (5) is closed to form a self-holding loop, the coil of the 2# incoming line switching-on contactor (5) always has a point holding action, a standby automatic switching device detects that a section II bus is pressed, meanwhile, a normally open contact of the 2# incoming line switching-on contactor (5) is closed to enable a 2# incoming line breaker position indicator lamp (16) to be electrified and red to be bright to indicate 2# incoming line switching-on, and the 1# incoming line contactor (2), the 2# incoming line contactor (3), the 1# incoming, the spare power automatic switching device acquires the voltage of the two sections of buses;
as can be known from fig. 3, the closing of the normally open contact of the 1# incoming line closing contactor (4) represents the closing of the 1# incoming line breaker, the closing of the normally open contact of the 2# incoming line closing contactor (5) represents the closing of the 2# incoming line breaker, when the spare power automatic switching device is closed, the spare power automatic switching device judges according to the collected breaker state and bus voltage, when the charging condition is met, the spare power automatic switching device starts charging, the charging is completed, the voltage loss of the bus of the section I is tested, the 1# incoming line voltage control switch (7) is rotated to the opening position, and the opening of the normally closed contact of the opening of the 1# incoming line voltage control switch (7) enables the coil of the 1# incoming line contactor (2) to lose power and reset.
It can be known from fig. 1 that the I section of bus voltage connected to the backup automatic switching device is in voltage loss, the backup automatic switching device detects the voltage loss of one section of bus, the backup automatic switching device starts to operate, and sends a 1# inlet wire jumping command, as can be known from fig. 2, when the 1# inlet wire jumping command contact of the backup automatic switching device is closed and is switched on through the normally open contact of the 1# inlet wire closing contactor (4), the 1# inlet wire opening relay (12) is in live operation, the normally closed contact of the 1# inlet wire opening relay (12) is opened to enable the coil of the 1# inlet wire closing contactor (4) to be in power loss and reset, the normally open contact of the 1# inlet wire closing contactor (4) is opened, the 1# inlet wire breaker is opened, the normally open contact of the 1# inlet wire closing contactor (4) is opened, and the normally closed contact of the 1# inlet wire closing contactor (4) enables the.
As can be known from figure 3, the device detects 1# inlet wire breaker switching-off, send the section of closing command according to the inside logic of the spare power automatic switching device, as can be known from figure 2, the spare power automatic switching section of closing command contact is closed, make the section closing contactor (6) coil get electric action through the normally closed contact of section breaking relay (14), the section breaker closes the floodgate, the normally open contact of section closing contactor (6) is closed and makes the section breaker position pilot lamp (17) get electric red, the spare power automatic switching action succeeds, the test of II section generating line decompression is the same with I section generating line decompression test principle.
When the single-bus double-incoming-line spare power automatic switching device is tested, only the incoming line contactor and the closing contactor corresponding to the working bus are switched on, during testing, the incoming line voltage control switch rotates to a switch-off position, the incoming line contactor is disconnected to simulate incoming line voltage loss, the spare power automatic switching device sends out tripping incoming line closing contactors according to internal logic and closes the other incoming line closing contactor, and when the working power supply incoming line closing contactor is disconnected, the other incoming line closing contactor is switched on, and an indicator lamp displays correct operation, the spare power automatic switching device can be judged to operate correctly.
When the spare power automatic switching device is locked by simulating manual tripping, the control switch (9) of the 1# incoming line circuit breaker rotates to a switching-off position, the switching-off normally-open contact of the control switch (9) of the 1# incoming line circuit breaker is closed, according to a diagram of fig. 3, the spare power automatic switching device detects a manual switching-off signal to lock the spare power automatic switching device, and meanwhile, the spare power automatic switching device discharges electricity according to internal logic of the spare power automatic switching device, and the spare power automatic switching device cannot act. The manual tripping principle of the 2# incoming line breaker is the same as that of the 1# incoming line manual tripping principle. The protection trip lockout backup power automatic switching and the remote control trip lockout backup power automatic switching need to enable information to come from the wire inlet device, signals are connected to the backup power automatic switching device, protection action experiments and remote control trip operation are conducted during testing, when the protection action experiments and the remote control trip are conducted, the backup power automatic switching does not act, and therefore the fact that the backup power automatic switching logic is normal can be judged. And (6) completing the test.
When the spare power automatic switching logic function of a debugging engineer is checked, the checking can be performed from two aspects, on one hand, the checking of the action condition of the spare power automatic switching is performed, for example, whether the testing engineer grasps the action condition of the spare power automatic switching so as to perform correct operation of the spare power automatic switching function test is performed or not, on the other hand, the checking of the action logic of the spare power automatic switching device is performed, after the testing engineer completes the setting of the spare power automatic switching device or completes the compiling of the spare power automatic switching action logic, the testing device is used for testing the spare power automatic switching logic, according to the testing steps, the spare power automatic switching device is observed to send a command to observe the action conditions of an incoming line contactor and a separating brake relay and observe the indication condition of a position indicator lamp, so that whether the spare power automatic switching logic is correct or not is judged.
The utility model discloses realize being equipped with and hauling oneself willingly into test function, be suitable for the test of single female segmentation or single female two inlet wires hauled oneself willingly into the device fully, also can correctly assess the inside action logic of test personnel about hauling oneself willingly into the device fully simultaneously.
The utility model discloses technological effect:
the utility model discloses it is exactly the function that realizes the test of the spare power automatic switching device of single generating line double inlet line or single female segmentation power supply system and spare power automatic switching action logic examination. The characteristics are as follows:
1. the contactor is adopted to replace a breaker, the action of the contactor is consistent with that of a field breaker, and the breaker breaks and breaks a main loop at the same time.
2. The power supply system is suitable for different power supply modes of a single-bus double-inlet wire or a single-bus sectional system, and the wiring in the system is the same in different power supply modes.
3. The automatic bus transfer device is provided with a circuit breaker position indicator lamp, and the action sequence and the action condition of the automatic bus transfer device are clear at a glance.
4. The incoming line main loop is provided with a breaker closing contactor and an incoming line contactor, so that the condition that the incoming line is in voltage loss and the breaker is not disconnected can be simulated, incoming line voltage can be connected into the spare power automatic switching device, the condition that the incoming line voltage is normal due to bus voltage loss can be simulated, the test function is complete, and various voltage loss conditions on the site can be simulated to the maximum extent.
5. The output voltage of one relay protection tester is used as the power supply voltage of two incoming lines, and the problem of synchronization does not need to be considered.
6. The testing device is consistent with field equipment in structure, the field equipment is simulated to the maximum extent, the testing circuit is simple and reliable, the testing operation is simple, repeated wiring is not needed, and the testing efficiency is obviously improved.
7. The test system can not only test the spare power automatic switching function, but also check the mastering condition of the spare power automatic switching logic of newly-entered debugging engineers, and has comprehensive functions.
Drawings
FIG. 1 is a schematic diagram of the system voltage wiring of the present invention
FIG. 2 is a wiring diagram of the control principle of the present invention
FIG. 3 is the signal acquisition principle wiring diagram of the present invention
Detailed Description
As shown in fig. 1, a spare power automatic switching test device includes a relay protection tester 1, a # 1 incoming line contactor 2, a # 2 incoming line contactor 3, a # 1 incoming line closing contactor 4, a # 2 incoming line closing contactor 5, a section closing contactor 6, a # 1 incoming line voltage control switch 7, a # 2 incoming line voltage control switch 8, a # 1 incoming line breaker control switch 9, a # 2 incoming line breaker control switch 10, a section breaker control switch 11, a # 1 incoming line tripping relay 12, a # 2 incoming line tripping relay 13, a section tripping relay 14, a # 1 incoming line breaker position indicator 15, a # 2 incoming line breaker position indicator 16, a section breaker position indicator 17, a test terminal 18, and a spare power automatic switching clamp plate 19; the connection of the voltage loop is as follows: three contacts of the 1# incoming line contactor 2 are connected with three contacts of the 1# incoming line closing contactor 4 in series, three contacts of the 2# incoming line contactor 3 are connected with three contacts of the 2# incoming line closing contactor 5 in series, and input ends of the three contacts of the 1# incoming line contactor 2 and input ends of the three contacts of the 2# incoming line contactor 3 are connected to a three-phase output end of the relay protection tester 1 after being respectively in short circuit; the control loop power supply adopts direct current + KM and-KM for power supply, a closing normally open contact of a 1# incoming line voltage control switch 7 is connected with a normally open contact of a 1# incoming line contactor 2 in parallel and then is connected with a coil of the 1# incoming line contactor 2 and a separating normally closed contact of the 1# incoming line voltage control switch 7 in series, a closing normally open contact of a 2# incoming line voltage control switch 8 is connected with a normally open contact of a 2# incoming line contactor 3 in parallel and then is connected with a coil of the 2# incoming line contactor 3 and a separating normally closed contact of the 2# incoming line voltage control switch 8 in series, a closing normally open contact of a 1# incoming line breaker control switch 9 is connected with a normally open contact of a 1# incoming line contactor 4 in parallel and then is connected with a normally closed contact of a 1# incoming line separating relay 12 and a coil of a 1# incoming line separating relay 4 in series, a closing contact of a 2# incoming line breaker control switch 10 is connected with a normally open contact of The coils of the switching-on contactor 5 are connected in series, and the switching-on normally open contact of the sectional breaker control switch 11 is connected in parallel with the normally closed contact of the sectional switching-off relay 14 and the coils of the sectional switching-on contactor 6; the separating brake normally open contact of 1# inlet wire circuit breaker control switch 9 and the normally open contact of 1# inlet wire combined floodgate contactor 4, the coil of 1# inlet wire separating brake relay 12 is established ties, the separating brake normally open contact of 2# inlet wire circuit breaker control switch 10 and the normally open contact of 2# inlet wire combined floodgate contactor 5, the coil of 2# inlet wire separating brake relay 13 is established ties, the separating brake normally open contact of segmentation circuit breaker control switch 11 and the normally open contact of segmentation combined floodgate contactor 6, the coil of segmentation separating brake relay 14 is established ties.
A spare power automatic switching test device is characterized in that: the 1# inlet wire contactor 2, the 2# inlet wire contactor 3, the 1# inlet wire closing contactor 4, the 2# inlet wire closing contactor 5 and the subsection closing contactor 6 adopt alternating current contactors.
A spare power automatic switching test device is characterized in that: the 1# incoming line tripping relay 12, the 2# incoming line tripping relay 13 and the sectional tripping relay 14 adopt direct current relays.
A spare power automatic switching test device is characterized in that: the 1# incoming line breaker position indicator lamp 15, the 2# incoming line breaker position indicator lamp 16 and the sectional breaker position indicator lamp 17 adopt double-color indicator lamps which are red and green; normally open contact of 1# inlet wire combined floodgate contactor 4 connects to the red lamp input of 1# inlet wire circuit breaker position indication lamp 15, normally closed contact of 1# inlet wire combined floodgate contactor 4 connects to the green lamp input of 1# inlet wire circuit breaker position indication lamp 15, normally open contact of 2# inlet wire combined floodgate contactor 5 connects to the red lamp input of 2# inlet wire circuit breaker position indication lamp 16, normally closed contact of 2# inlet wire combined floodgate contactor 5 connects to the green lamp input of 2# inlet wire circuit breaker position indication lamp 16, normally open contact of segmentation combined floodgate contactor 6 connects to the red lamp input of segmentation circuit breaker position indication lamp 17, normally closed contact of segmentation combined floodgate contactor 6 connects to the green lamp input of segmentation circuit breaker position indication lamp 17.
A spare power automatic switching test device is characterized in that: the two ends of the spare power automatic switching device are connected with the test terminal 18 through the normally open and normally closed contacts of the 1# incoming line closing contactor 4, the normally open and normally closed contacts of the 2# incoming line closing contactor 5, the normally open contact of the 1# incoming line breaker control switch 9, the normally open contact of the 2# incoming line breaker control switch 10, the normally open contact of the section closing contactor 6 and the normally closed contact of the section closing contactor 6.
The specific working process is as follows: as shown in fig. 1, the 1# incoming line contactor 2, the 2# incoming line contactor 3, the 1# incoming line closing contactor 4, and the 2# incoming line closing contactor 5 are connected as shown in the figure, and as can be seen from fig. 1, the 1# incoming line contactor 2 is used for controlling the 1# incoming line voltage, the 2# incoming line contactor 3 is used for controlling the 2# incoming line voltage, the 1# incoming line closing contactor 4 is used for controlling the 1# bus voltage and simultaneously serves as the 1# incoming line breaker, and the 2# incoming line closing contactor 5 is used for controlling the 2# bus voltage and simultaneously serves as the 2# incoming line breaker.
As shown in fig. 2, during testing, a direct-current power supply is switched on, the relay protection tester 1 outputs a rated voltage line voltage of 100V, when the relay protection tester is used for a single bus segment, the 1# incoming line voltage control switch 7 rotates to a switching-on position, at the moment, a switching-on normally open contact of the 1# incoming line voltage control switch 7 is closed, a coil of the 1# incoming line contactor (2) is powered on to act through a switching-off normally closed contact of the 1# incoming line voltage control switch 7, and a normally open contact of the 1# incoming line contactor 2 is closed to form a self-holding loop so that the coil of the 1# incoming line contactor 2 always has a point; at the moment, the control switch 9 of the 1# incoming line breaker is rotated to a switching-on position, a switching-on normally open contact of the control switch 9 of the 1# incoming line breaker is closed, a coil of the 1# incoming line switching-on contactor 4 is electrified to act through a normally closed contact of a 1# incoming line switching-off relay 12, a normally open contact of the 1# incoming line switching-on contactor 4 is closed to form a self-holding loop, the coil of the 1# incoming line switching-on contactor 4 is always electrified to act, the spare automatic switching device detects that a bus of a section I is pressed, meanwhile, the normally open contact of the 1# incoming line switching-on contactor 4 is closed to enable a position indicator lamp 15 of the 1# incoming line breaker to be electrified and bright red to indicate that the 1# incoming line is switched on, the voltage control switch 8 of the 2# incoming line is rotated to the switching-on position, the normally open contact of the voltage control switch 8 of the 2#, the normally open contact of the 2# incoming line contactor 3 is closed to form a self-holding loop, so that the coil of the 2# incoming line contactor 3 is always kept in motion with a point; at the moment, a 2# incoming line breaker control switch 10 is rotated to a switching-on position, a switching-on normally open contact of a 2# incoming line breaker control switch 20 is closed, a coil of a 2# incoming line switching-on contactor 5 is electrified to act through a normally closed contact of a 1# incoming line switching-off relay 13, a normally open contact of the 2# incoming line switching-on contactor 5 is closed to form a self-holding loop, the coil of the 2# incoming line switching-on contactor 5 always has point holding action, a spare automatic switching device detects that a section II bus is pressed, meanwhile, the normally open contact of the 2# incoming line switching-on contactor 5 is closed to enable a 2# incoming line breaker position indicator lamp 16 to be electrified and bright red to indicate 2# incoming line switching-on, the 1# incoming line contactor 2, the 2# incoming line contactor 3, the 1# incoming line switching-on contactor 4 and the 2 #;
as can be known from fig. 3, the closing of the normally open contact of the 1# incoming line closing contactor 4 indicates that the 1# incoming line breaker is closed, the closing of the normally open contact of the 2# incoming line closing contactor 5 indicates that the 2# incoming line breaker is closed, when the backup power automatic switching device is closed, the backup power automatic switching device judges according to the collected breaker state and bus voltage, when the charging condition is met, the backup power automatic switching device starts charging, the charging is completed, the voltage loss of the bus at the section I is tested, the 1# incoming line voltage control switch 7 is rotated to the switching-off position, the switching-off normally closed contact of the 1# incoming line voltage control switch 7 is switched off at the moment to reset the power loss of the coil of the 1# incoming line contactor 2, as can be known from fig. 1, the voltage loss of the bus at the section I connected to the backup power automatic switching device is detected, the backup power automatic switching device detects;
according to the diagram of fig. 2, when the spare power automatic switching device trips the 1# incoming wire command contact to be closed and is switched on through the normally open contact of the 1# incoming wire closing contactor 4, the 1# incoming wire disconnecting relay 12 is electrified to act, the 1# incoming wire disconnecting relay 12 normally closed contact is disconnected to enable the 1# incoming wire closing contactor 4 coil to lose electricity to reset, the 1# incoming wire closing contactor 4 normally open contact is disconnected, the 1# incoming wire breaker is disconnected, the 1# incoming wire closing contactor 4 normally open contact is disconnected, the 1# incoming wire closing contactor 4 normally closed contact is closed to enable the 1# incoming wire breaker position indicator lamp 15 to be changed into green from red.
It can be known from fig. 3 that the device detects 1# inlet wire circuit breaker switching-off, send the section of closing command according to the inside logic of the spare power automatic switching device, it can be known from fig. 2 that the spare power automatic switching section of closing command contact is closed, make 6 coils of section combined floodgate contactor get electric action through 14 normally closed contacts of section combined floodgate relay, the section circuit breaker is closed, 6 normally open contacts of section combined floodgate contactor make section circuit breaker position pilot lamp 17 get electric red, the spare power automatic switching action succeeds, the test of II section generating line decompression is the same with I section generating line decompression test principle.
When the single-bus double-incoming-line spare power automatic switching device is tested, only the incoming line contactor and the closing contactor corresponding to the working bus are switched on, during testing, the incoming line voltage control switch rotates to the switching-off position, the incoming line contactor is disconnected to simulate incoming line voltage loss, the spare power automatic switching device sends out tripping incoming line closing contactors according to internal logic and closes the other incoming line closing contactor, and when the working power supply incoming line closing contactor is disconnected, the other incoming line closing contactor is switched on, and an indicator lamp displays correctly, the action of the spare power automatic switching device can be judged to be correct.
When the spare power automatic switching device is used for simulating manual tripping and locking, the 1# incoming line breaker control switch 9 rotates to the opening position, the opening normally-open contact of the 1# incoming line breaker control switch 9 is closed, according to the figure 3, the spare power automatic switching device detects a manual opening signal to lock the spare power automatic switching device, and meanwhile, the spare power automatic switching device is enabled to discharge according to the internal logic of the spare power automatic switching device, and the spare power automatic switching device cannot act. The manual tripping principle of the 2# incoming line breaker is the same as that of the 1# incoming line manual tripping principle. And (6) completing the test.
The working principle and the embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments. The utility model discloses realize that single female two inlet wires or single female different system operation modes such as segmentation spare power automatic switching function test and examination function, the device constitutes equipment simple with low costs, and economy is suitable for, easy operation easy to carry out.
Claims (5)
1. A spare power automatic switching test device is characterized in that: the automatic switching device comprises a relay protection tester (1), a 1# incoming line contactor (2), a 2# incoming line contactor (3), a 1# incoming line closing contactor (4), a 2# incoming line closing contactor (5), a sectional closing contactor (6), a 1# incoming line voltage control switch (7), a 2# incoming line voltage control switch (8), a 1# incoming line breaker control switch (9), a 2# incoming line breaker control switch (10), a sectional breaker control switch (11), a 1# incoming line tripping relay (12), a 2# incoming line tripping relay (13), a sectional tripping relay (14), a 1# incoming line breaker position indicator lamp (15), a 2# incoming line breaker position indicator lamp (16), a sectional breaker position indicator lamp (17), a test terminal (18) and a standby automatic switching pressing plate (19); the connection of the voltage loop is as follows: three contacts of the 1# incoming line contactor (2) are connected with three contacts of the 1# incoming line closing contactor (4) in series, three contacts of the 2# incoming line contactor (3) are connected with three contacts of the 2# incoming line closing contactor (5) in series, and input ends of the three contacts of the 1# incoming line contactor (2) and input ends of the three contacts of the 2# incoming line contactor (3) are connected to a three-phase output end of the relay protection tester (1) after being respectively short-circuited; the control loop power supply adopts direct current + KM and-KM for power supply, a closing normally open contact of a 1# incoming line voltage control switch (7) is connected with a normally open contact of a 1# incoming line contactor (2) in parallel and then connected with a coil of the 1# incoming line contactor (2) and a separating normally closed contact of the 1# incoming line voltage control switch (7) in series, a closing normally open contact of a 2# incoming line voltage control switch (8) is connected with a normally open contact of a 2# incoming line contactor (3) in parallel and then connected with a coil of the 2# incoming line contactor (3) and a separating normally closed contact of the 2# incoming line voltage control switch (8) in series, a closing normally open contact of a 1# incoming line breaker control switch (9) is connected with a normally open contact of a 1# incoming line separating brake relay (12) in parallel and then connected with a coil of the 1# incoming line closing contactor (4) in series, a closing normally open contact of a 2# incoming line breaker control switch (10) and a normally closed contact of a The normally closed contact of the 2# incoming line tripping relay (13) and the coil of the 2# incoming line closing contactor (5) are connected in series after the open contacts are connected in parallel, and the closing normally open contact of the sectional breaker control switch (11) and the normally open contact of the sectional closing contactor (6) are connected in parallel and then connected in series with the normally closed contact of the sectional tripping relay (14) and the coil of the sectional closing contactor (6); the separating brake normally open contact of 1# inlet wire circuit breaker control switch (9) and the normally open contact of 1# inlet wire combined floodgate contactor (4), the coil of 1# inlet wire separating brake relay (12) is established ties, the separating brake normally open contact of 2# inlet wire circuit breaker control switch (10) and the normally open contact of 2# inlet wire combined floodgate contactor (5), the coil of 2# inlet wire separating brake relay (13) is established ties, the separating brake normally open contact of segmentation circuit breaker control switch (11) and the normally open contact of segmentation combined floodgate contactor (6), the coil of segmentation separating brake relay (14) is established ties.
2. The spare power automatic switching test device according to claim 1, wherein: the 1# inlet wire contactor (2), the 2# inlet wire contactor (3), the 1# inlet wire closing contactor (4), the 2# inlet wire closing contactor (5) and the subsection closing contactor (6) adopt direct-current power supply contactors.
3. The spare power automatic switching test device according to claim 1, wherein: the 1# incoming line tripping relay (12), the 2# incoming line tripping relay (13) and the sectional tripping relay (14) adopt direct current relays.
4. The spare power automatic switching test device according to claim 1, wherein: the 1# incoming line breaker position indicator lamp (15), the 2# incoming line breaker position indicator lamp (16) and the sectional breaker position indicator lamp (17) adopt double-color indicator lamps which are red and green; the normally open contact of 1# inlet wire combined floodgate contactor (4) connects to the red lamp input of 1# inlet wire circuit breaker position indication lamp (15), the normally closed contact of 1# inlet wire combined floodgate contactor (4) connects to the green lamp input of 1# inlet wire circuit breaker position indication lamp (15), the normally open contact of 2# inlet wire combined floodgate contactor (5) connects to the red lamp input of 2# inlet wire circuit breaker position indication lamp (16), the normally closed contact of 2# inlet wire combined floodgate contactor (5) connects to the green lamp input of 2# inlet wire circuit breaker position indication lamp (16), the normally open contact of segmentation combined floodgate contactor (6) connects to the red lamp input of segmentation circuit breaker position indication lamp (17), the normally closed contact of segmentation combined floodgate contactor (6) connects to the green lamp input of segmentation circuit breaker position indication lamp (17).
5. The spare power automatic switching test device according to claim 1, wherein: the test device comprises two ends of a spare power automatic switching device pressing plate (19), normally open and normally closed contacts of a 1# incoming line closing contactor (4), normally open and normally closed contacts of a 2# incoming line closing contactor (5), normally open contacts of a 1# incoming line breaker control switch (9), normally open contacts of a 2# incoming line breaker control switch (10), normally open contacts of a sectional closing contactor (6) and normally closed contact points of the sectional closing contactor (6) which are connected to a test terminal (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022257706.XU CN213181921U (en) | 2020-10-12 | 2020-10-12 | Spare power automatic switching test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022257706.XU CN213181921U (en) | 2020-10-12 | 2020-10-12 | Spare power automatic switching test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213181921U true CN213181921U (en) | 2021-05-11 |
Family
ID=75778531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022257706.XU Expired - Fee Related CN213181921U (en) | 2020-10-12 | 2020-10-12 | Spare power automatic switching test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213181921U (en) |
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2020
- 2020-10-12 CN CN202022257706.XU patent/CN213181921U/en not_active Expired - Fee Related
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Granted publication date: 20210511 Termination date: 20211012 |