CN210323219U - Test circuit applied to high-voltage switch cabinet - Google Patents
Test circuit applied to high-voltage switch cabinet Download PDFInfo
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- CN210323219U CN210323219U CN201920658111.XU CN201920658111U CN210323219U CN 210323219 U CN210323219 U CN 210323219U CN 201920658111 U CN201920658111 U CN 201920658111U CN 210323219 U CN210323219 U CN 210323219U
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- electromagnetic lock
- electric connection
- coil
- fuse
- normally closed
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Abstract
The utility model discloses a test circuit applied to a high-voltage switch cabinet, which belongs to the technical field of test circuits of high-voltage switch cabinets, and comprises a controlled voltage source for providing power demand, wherein the anode of the controlled voltage source is electrically connected with a fuse, the anode of the fuse is electrically connected with a movable switch, the movable switch is electrically connected with an indicator lamp, the indicator lamp is electrically connected with a live display, the live display is electrically connected with an auxiliary normally closed contact matched with the live display, the auxiliary normally closed contact is electrically connected with an electromagnetic lock coil, the electromagnetic lock coil is electrically connected with the cathode of the controlled voltage source, the state of the high-voltage switch cabinet in a high-voltage running state is simulated by designing a simulation test circuit, an electromagnetic lock is locked, the electromagnetic lock cannot be operated, a cabinet door cannot be opened in actual running, and the electromagnetic lock is opened after high voltage disappears, the electromagnetic lock can be operated, and the cabinet door can be opened in the simulation in actual operation.
Description
Technical Field
The utility model relates to a high tension switchgear's test circuit technical field specifically is a be applied to high tension switchgear's test circuit, can be used to the high pressure and be the electric shutting test circuit of high-voltage products such as 10KV or 35 KV's high-voltage board, looped netowrk cabinet.
Background
The electrified locking is an important function of a high-voltage switch cabinet, the electrified display is an important element for displaying the electrified running state of the high-voltage cabinet, in a factory test of the high-voltage cabinet, the 'electrified display correctly indicates and reliably locks' is a necessary test, but if the test is to be completed, the electrified display correctly indicates the electrified state, high voltage needs to be applied to the high-voltage cabinet, at the moment, the state of an indicator lamp of the electrified display is observed, and whether an electromagnetic lock can be normally locked or not is operated, but because the high-voltage cabinet is provided with high voltage at the moment, a tester operates the electromagnetic lock at the moment to be dangerous, when a test department carries out the factory test of the high-voltage cabinet, in order to ensure the personal safety of the tester, the tester is forbidden to operate the electromagnetic lock, so that the sensor, the electrified display and the electromagnetic lock loop cannot be detected, and if a fault exists in a field test or when equipment runs, the element is maintained or replaced, the after-sale service cost is increased, and normal power transmission is delayed, so that a test circuit applied to a high-voltage switch cabinet is provided.
Disclosure of Invention
An object of the utility model is to provide a be applied to high tension switchgear's test circuit to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a be applied to high tension switchgear's test circuit, includes the controlled voltage source who provides the electric power demand, controlled voltage source's anodal electric connection has the fuse, the anodal electric connection of fuse has the dynamic switch, dynamic switch electric connection has the pilot lamp, pilot lamp electric connection has electrified display, electrified display electric connection and electrified display matched with supplementary normally closed contact, supplementary normally closed contact electric connection has the electromagnetic lock coil, the negative pole electric connection of electromagnetic lock coil and controlled voltage source.
Preferably, the charged display comprises a main coil connected to the main control circuit, the main control circuit is electrically connected to a main contact matched with the main coil for self-locking, and the auxiliary normally closed contact is matched with the main coil.
Preferably, the normally closed end point of the movable switch is connected with the indicator light, the fuse is connected with the controlled voltage source at any time, and the fuse is discontinuously connected with the movable switch.
Preferably, the rotation handle on electromagnetic lock coil and the electromagnetic lock cooperatees, just electric connection has the supplementary normally open contact that cooperatees with the electromagnetic lock coil and insert in the circuit on the electromagnetic lock.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model has the advantages of reasonable design, through designing simulation test circuit to simulate the state of high tension switchgear under high pressure running state, when electrified display is electrified under high pressure running state, the main coil is electrified, cause the disconnection of auxiliary normally closed contact, make electromagnetic lock coil and pilot lamp all be in the outage state, the shutting electromagnetic lock, make the electromagnetic lock can not operate, simulate in actual operation cabinet door can not open, the pilot lamp is not bright simultaneously, show that the switchgear is in high pressure state, the same way, after the cubical switchboard high pressure disappears, namely the main coil is powered off, auxiliary normally closed contact resets this moment, make the shutting circuit electrified, electromagnetic lock coil and pilot lamp all be in the on-state, the electromagnetic lock is electrified and open, the electromagnetic lock can operate, simulate in actual operation cabinet door can open, the pilot lamp is lighted simultaneously, show that the cubical switchboard is in high pressure power-off state, wherein, the fuse acts to protect the circuit.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
In the figure: the device comprises a controlled voltage source 1, an electromagnetic lock coil 2, an electrified display 3, an auxiliary normally closed contact 4, a fuse 5, a movable switch 6 and an indicator light 7.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, the present invention provides a technical solution: the utility model provides a be applied to high tension switchgear's test circuit, including the controlled voltage source 1 that provides the electric power demand, controlled voltage source 1's anodal electric connection has fuse 5, fuse 5's anodal electric connection has the dynamic switch 6, dynamic switch 6 electric connection has pilot lamp 7, pilot lamp 7 electric connection has electrified display 3, 3 electric connection of electrified display and the supplementary normally closed contact 4 of electrified display 3 matched with, supplementary normally closed contact 4 electric connection has electromagnetic lock coil 2, electromagnetic lock coil 2 and controlled voltage source 1's negative pole electric connection.
The electrified display 3 comprises a main coil connected into a main control circuit, the main control circuit is also electrically connected with a main contact matched with the main coil for self-locking, and the auxiliary normally closed contact 4 is matched with the main coil, so that when the electrified display 3 is in a high-voltage state, the locking circuit is in a power-off state, the auxiliary normally closed contact 4 is disconnected, the electromagnetic lock coil 2 and the indicator lamp 7 are both in a power-off state, the electromagnetic lock is locked, the electromagnetic lock cannot be operated, and the condition that a cabinet door cannot be opened in actual operation is simulated;
the normally closed end point of the movable switch 6 is connected with the indicator lamp 7, the fuse 5 is constantly connected with the controlled voltage source 1, and the fuse 5 is discontinuously connected with the movable switch 6, so that the safety of the movable switch 6 can be improved, and the movable switch 6 is in a power-off state when not in connection;
the rotation handle on electromagnetic lock coil 2 and the electromagnetic lock cooperatees, and electromagnetic lock goes up electric connection and has cooperatees with electromagnetic lock coil 2 and inserts the supplementary normally open contact in the circuit, and the getting through electromagnetic lock coil 2 loses the electricity and controls the closure of supplementary normally open contact, can realize the control to the electromagnetic lock.
Example (b): when the device is used, a simulation test circuit is designed to simulate the state of a high-voltage switch cabinet in a high-voltage operation state, the high-voltage switch cabinet is connected into the circuit, a movable switch 6 is pressed down to connect a locking circuit, when the electrified display 3 is electrified, namely, in the high-voltage operation state, a main coil of the electrified display 3 is electrified to cause an auxiliary normally closed contact 4 to be disconnected, so that an electromagnetic lock coil 2 and an indicator lamp 7 are in a power-off state, the electromagnetic lock is locked, the electromagnetic lock cannot be operated, the simulation is that a cabinet door cannot be opened in actual operation, the indicator lamp 7 is not lighted at the same time to indicate that the switch cabinet is in the high-voltage state, similarly, after the high voltage of the switch cabinet disappears, namely, the auxiliary normally closed contact 4 is powered off, at the time, the auxiliary normally closed contact 4 is reset, the locking circuit is electrified, the electromagnetic lock coil 2 and the indicator lamp 7 are in the power-on, the electromagnetic lock can be operated, and the simulation cabinet door can be opened in actual operation, and pilot lamp 7 lights simultaneously, shows that the cubical switchboard is in the high-pressure power loss state, and fuse 5 plays protection circuit's effect, improves the security.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The utility model provides a be applied to high tension switchgear's test circuit which characterized in that: including controlled voltage source (1) that provides the electric power demand, the anodal electric connection of controlled voltage source (1) has fuse (5), the anodal electric connection of fuse (5) has the switch (6) that moves to close, move switch (6) electric connection and have pilot lamp (7), pilot lamp (7) electric connection has electrified display (3), electrified display (3) electric connection and electrified display (3) matched with supplementary normally closed contact (4), supplementary normally closed contact (4) electric connection has electromagnetic lock coil (2), the negative pole electric connection of electromagnetic lock coil (2) and controlled voltage source (1).
2. The test circuit applied to the high-voltage switch cabinet as claimed in claim 1, wherein: the charged display (3) comprises a main coil connected into the main control circuit, the main control circuit is also electrically connected with a main contact which is matched with the main coil to carry out self-locking, and the auxiliary normally closed contact (4) is matched with the main coil.
3. The test circuit applied to the high-voltage switch cabinet as claimed in claim 1, wherein: the normally closed end point of the movable switch (6) is connected with the indicator lamp (7), the fuse (5) is connected with the controlled voltage source (1) at any time, and the fuse (5) is connected with the movable switch (6) discontinuously.
4. The test circuit applied to the high-voltage switch cabinet as claimed in claim 1, wherein: electromagnetic lock coil (2) and the rotation handle on the electromagnetic lock cooperate, just electric connection has the supplementary normally open contact who cooperatees and insert in the circuit with electromagnetic lock coil (2) on the electromagnetic lock.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920658111.XU CN210323219U (en) | 2019-05-08 | 2019-05-08 | Test circuit applied to high-voltage switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920658111.XU CN210323219U (en) | 2019-05-08 | 2019-05-08 | Test circuit applied to high-voltage switch cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210323219U true CN210323219U (en) | 2020-04-14 |
Family
ID=70138320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920658111.XU Active CN210323219U (en) | 2019-05-08 | 2019-05-08 | Test circuit applied to high-voltage switch cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210323219U (en) |
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2019
- 2019-05-08 CN CN201920658111.XU patent/CN210323219U/en active Active
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