CN112505453B - Terminal box testing method and terminal box - Google Patents
Terminal box testing method and terminal box Download PDFInfo
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- CN112505453B CN112505453B CN202011339544.2A CN202011339544A CN112505453B CN 112505453 B CN112505453 B CN 112505453B CN 202011339544 A CN202011339544 A CN 202011339544A CN 112505453 B CN112505453 B CN 112505453B
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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
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/02—Means for indicating or recording specially adapted for thermometers
- G01K1/024—Means for indicating or recording specially adapted for thermometers for remote indication
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
- G01R1/0416—Connectors, terminals
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Abstract
The application provides a terminal box test method and a terminal box, wherein the test method is applied to the terminal box, and the terminal box comprises the following steps: the relay protection module comprises a terminal module, a relay protection module and an area module; the detection piece can be inserted into the terminal module; the terminal module comprises a first wiring terminal, a second wiring terminal, a third wiring terminal and a fourth wiring terminal; the method comprises the following steps: inserting the detection piece into an operation part of the terminal module, and electrically connecting the first wiring terminal and the second wiring terminal so as to short-circuit the area module side; disconnecting the first connecting terminal from the third connecting terminal, and disconnecting the second connecting terminal from the fourth connecting terminal so as to enable the relay protection module to be laterally disconnected; and detecting the electric connection state between the third wiring terminal and the fourth wiring terminal so as to detect the relay protection module. By adopting the scheme, the detection piece is utilized to complete short circuit and disconnection between the wiring terminals, the detection of the terminal box is realized, the operation is only plugging and unplugging, and the automatic safety measure and the isolation work of the loop are realized through plug and play.
Description
Technical Field
The application relates to the technical field of power systems, in particular to a terminal box testing method and a terminal box.
Background
The terminal box is a switching construction line, marks branch lines and provides a convenient interface device for wiring and line inspection. In some cases, a short-circuit isolator or the like may be installed in the terminal box for the convenience of construction and debugging. Because the circuit is numerous in the terminal box, and general its service environment is comparatively complicated, consequently, the terminal box needs regular operation maintenance and maintenance, also is promptly regularly to the terminal box test to guarantee the power consumption safety.
In the process of regularly maintaining and repairing the terminal box, the safety of operators needs to be ensured. Traditional terminal box adopts the safety measure of disconnect-type to the operation that carries out the terminal box is maintained and is overhauld, that is, utilizes through artifical manual disconnect-type, then manual wiring, realizes the test of terminal box, but, disconnect-type operation extremely high and the mistake that easily takes place connects to operating personnel's technical requirement, in case the mistake bumps and leads to the protection inefficacy.
Disclosure of Invention
The application provides a terminal box testing method and a terminal box, and aims to solve the problems that when the terminal box is tested, the technical requirement of disconnecting safety measures on operators is extremely high, misconnection is easy to occur, and protection is invalid due to the fact that the misconnection is caused once the misconnection occurs.
In a first aspect, an embodiment of the present application provides a terminal box testing method, where the testing method is applied to a terminal box, and the terminal box includes: the relay protection module comprises a terminal module, a relay protection module and an area module; the terminal module is arranged between the relay protection module and the area module; the terminal module is provided with an operation part, the operation part is used for inserting a detection piece, and the detection piece is inserted into the terminal module;
the terminal module comprises a first wiring terminal, a second wiring terminal, a third wiring terminal and a fourth wiring terminal, the first wiring terminal and the second wiring terminal are electrically connected with the area module, the third wiring terminal and the fourth wiring terminal are electrically connected with the relay protection module, the first wiring terminal is electrically connected with the third wiring terminal, and the second wiring terminal is electrically connected with the fourth wiring terminal so as to electrically connect the relay protection module with the area module;
the method comprises the following steps:
inserting the detection piece into an operation part of an end module, and electrically connecting the first connecting terminal and the second connecting terminal so as to short-circuit the area module side;
disconnecting the first connecting terminal from the third connecting terminal, and disconnecting the second connecting terminal from the fourth connecting terminal, so as to enable the relay protection module to be laterally disconnected;
and detecting the electric connection state between the third wiring terminal and the fourth wiring terminal so as to detect the relay protection module.
With reference to the first aspect, in one implementation, the first connection terminal includes a first contact, and the second connection terminal includes a second contact; electrically connecting the first connection terminal and the second connection terminal, comprising:
after the overhaul piece is inserted into the terminal module, a main body conductive part of the overhaul piece pushes the first contact and the second contact to be relatively far away, and the first contact and the second contact are respectively abutted and connected electrically.
With reference to the first aspect, in one implementation manner, the first connection terminal further includes a third contact, the second connection terminal further includes a fourth contact, the third connection terminal includes a fifth contact and a sixth contact, and the fourth connection terminal includes a seventh contact and an eighth contact;
the third contact is electrically connected with the fifth contact, and the fourth contact is electrically connected with the seventh contact;
electrically connecting the sixth contact with the eighth contact, disconnecting the third contact from the fifth contact, and disconnecting the fourth contact from the seventh contact.
With reference to the first aspect, in an implementation manner, the terminal module, the relay protection module, and the area module are respectively provided in multiple numbers, and the terminal module, the relay protection module, and the area module are provided in a one-to-one correspondence.
With reference to the first aspect, in one implementation, the area module is a loop section having an independent loop; the zone module includes at least one of a current transformer, a voltage transformer, and a signal relay.
With reference to the first aspect, in one implementation, the relay protection module is a CT current loop.
With reference to the first aspect, in an implementation manner, the terminal box further includes a plurality of safety measure covers, the safety measure covers are arranged in one-to-one correspondence with the terminal modules, the safety measure covers are used for sealing the terminal modules, the operation portions of the terminal modules are sealed in an insulating manner, and when the terminal modules are opened by the safety measure covers, the operation portions of the terminal modules are exposed by the safety measure covers.
In combination with the first aspect, in one implementation manner, the detection piece is provided with a clamping protrusion and a handle, and the clamping protrusion is clamped and fixed with a clamping groove in the terminal module, so that the detection piece is inserted into the operation portion of the terminal module and is stably connected with the operation portion.
With reference to the first aspect, in an implementation manner, the terminal box further includes a temperature measuring part and an insulating patch, the insulating patch is connected to the terminal block in the terminal module and the temperature measuring part, so that the temperature measuring part can sense the temperature of the terminal block, and when the temperature of the terminal block reaches a preset value, the temperature measuring part can send a warning signal and transmit the warning signal to the host.
In a second aspect, some embodiments provide a terminal box for use in the testing method of any one of claims 1 to 9, the terminal box comprising: the relay protection module comprises a terminal module, a relay protection module and an area module; the terminal module is arranged between the relay protection module and the area module; the terminal module is provided with an operation part, the operation part is used for inserting a detection piece, and the detection piece is inserted into the terminal module;
the terminal module comprises a first wiring terminal, a second wiring terminal, a third wiring terminal and a fourth wiring terminal, the first wiring terminal and the second wiring terminal are electrically connected with the region module, the third wiring terminal and the fourth wiring terminal are electrically connected with the relay protection module, the first wiring terminal is electrically connected with the third wiring terminal, the second wiring terminal is electrically connected with the fourth wiring terminal, and therefore the relay protection module is electrically connected with the region module.
The application provides a terminal box test method and a terminal box, wherein the test method is applied to the terminal box, and the terminal box comprises the following steps: the relay protection module comprises a terminal module, a relay protection module and an area module; the terminal module is arranged between the relay protection module and the area module; the terminal module is provided with an operation part, the operation part is used for inserting a detection piece, and the detection piece is inserted into the terminal module; the terminal module comprises a first wiring terminal, a second wiring terminal, a third wiring terminal and a fourth wiring terminal, the first wiring terminal and the second wiring terminal are electrically connected with the area module, the third wiring terminal and the fourth wiring terminal are electrically connected with the relay protection module, the first wiring terminal is electrically connected with the third wiring terminal, and the second wiring terminal is electrically connected with the fourth wiring terminal so as to electrically connect the relay protection module with the area module; the method comprises the following steps: inserting the detection piece into an operation part of an end module, and electrically connecting the first connecting terminal and the second connecting terminal so as to short-circuit the area module side; disconnecting the first connecting terminal from the third connecting terminal, and disconnecting the second connecting terminal from the fourth connecting terminal, so as to enable the relay protection module to be laterally disconnected; and detecting the electric connection state between the third wiring terminal and the fourth wiring terminal so as to detect the relay protection module. By adopting the scheme, the detection piece is directly inserted into the terminal module to complete short circuit and disconnection between the wiring terminals, detection of the relay protection module is realized, and the external operation test interface on the terminal module is adopted to realize plugging and unplugging only, disconnection-free and plug-and-play, so that automatic safety measure and isolation work of a loop are realized.
Drawings
In order to more clearly explain the technical solution of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is an overall structural view of a terminal box according to an embodiment of the present disclosure;
fig. 2 is a schematic connection diagram of an internal structure of a terminal box according to an embodiment of the present disclosure;
FIG. 3 is a schematic structural diagram of a terminal module according to an embodiment of the present application;
fig. 4 is a schematic view of the structure of a terminal module insertion detector in one embodiment of the present application;
FIG. 5 is a schematic diagram of a normal state of a current loop according to an embodiment of the present application;
fig. 6 is a schematic flow chart of a terminal box testing method according to an embodiment of the present application;
FIG. 7 is a schematic view of the current loop insertion detector in one embodiment of the present application;
FIG. 8 is a schematic view of a current loop service condition in an embodiment of the present application;
FIG. 9 is a state diagram of current sensing of the current loop in one embodiment of the present application.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present application more comprehensible, the present application is described in further detail with reference to the accompanying drawings and the detailed description.
When testing the terminal box in the prior art, the disconnection type safety measure is usually adopted to ensure personnel safety, namely, disconnection realizes power failure, protection, connection of test equipment and the like, but the technical requirement of the operating personnel in the mode is extremely high, misconnection is easy to occur, and once the misconnection causes protection failure, safety accidents can be caused.
Therefore, in order to solve the above-mentioned problems, the present application provides a terminal box testing method applied to a terminal box, referring to fig. 1 to 4, the terminal box including: the device comprises a box body 1, and a terminal module 30, a relay protection module 20 and an area module 10 which are arranged in the box body 1; the terminal module 30 is disposed between the relay protection module 20 and the area module 10; the terminal module 30 is provided with an operation portion for inserting the detecting member 40, and the detecting member 40 is inserted into the terminal module 30.
The box body 1 can be a cabinet body made of metal or other materials, the materials and the size can be selected according to the application environment, and the box body 1 is used for protecting the structure inside the box body 1.
The operating portion of the terminal module 30 may include a snap groove 305 to facilitate insertion of the detecting member 40.
The terminal module 30 includes a first connection terminal 301, a second connection terminal 302, a third connection terminal 303 and a fourth connection terminal 304, the first connection terminal 301 and the second connection terminal 302 are electrically connected to the area module 10, the third connection terminal 303 and the fourth connection terminal 304 are electrically connected to the relay protection module 20, the first connection terminal 301 is electrically connected to the third connection terminal 303, the second connection terminal 302 is electrically connected to the fourth connection terminal 304, so that the relay protection module 20 is electrically connected to the area module 10.
Referring to fig. 5, the method includes:
s11, inserting the detecting member 40 into the operation part of the terminal module 30, and electrically connecting the first connection terminal 301 and the second connection terminal 302 to short-circuit the area module 10;
s12, disconnecting the first connection terminal 301 from the third connection terminal 303, and disconnecting the second connection terminal 302 from the fourth connection terminal 304, so as to open the relay protection module 20;
s13, detecting an electrical connection state between the third connection terminal 303 and the fourth connection terminal 304, so as to detect the relay protection module 20.
From the above, the terminal box testing method disclosed in the present application controls the short circuit and the disconnection between the connection terminals through the insertion of the detection piece 40, and realizes the detection of the relay protection module 20, so as to realize the plugging and unplugging only, the disconnection-free, and the plug-and-play, so as to realize the automatic safety measure and the isolation work of the loop, when the detection of the terminal box is performed, the disconnection of the internal circuit of the terminal box is not required, the plugging and unplugging of the detection piece 40 on the terminal module 30 in the terminal box can be adopted, the state detection of the relay protection module 20 can be realized, and under the condition of no disconnection, the safety measure is quickly completed to realize the physical isolation, the intelligent short circuit or the cross-boundary.
When the secondary loop is detected, the terminal box testing method of the invention is adopted, and field maintainers can carry out the maintenance testing operation of the loop without contacting the terminal strip, thereby realizing automatic safety measure and isolation work.
In a terminal box test embodiment, the normal connection or short circuit of the terminal strip connection line in the terminal module 30 is realized by inserting or removing the detecting member 40 into or from the terminal module 30, when the detecting member 40 is not inserted into the operation part of the terminal module 30, the terminal module 30 is in a normal state, as shown in fig. 6, the zone module 10 and the relay device are both normally operated, and the current passes through the zone module 10, the terminal module 30, the relay module 20, and finally returns to the zone module 10 to form a loop. When detection is required, as shown in fig. 7 and 8, when the detection piece 40 is inserted into the first position of the operation part of the terminal module 30, the first terminal and the second terminal can be in short circuit, after the detection piece 40 is inserted continuously, the first connection terminal 301 and the third connection terminal 303 can be disconnected, the second connection terminal 302 and the fourth connection terminal 304 can be disconnected, so that the relay protection module 20 side is isolated from the area module 10 side, and the detection piece 40 can directly detect the electric connection state between the third connection terminal 303 and the fourth connection terminal 304 to detect the relay protection device, perform daily protection verification and transmission test, and thereby realize the test work of the secondary circuit.
In an embodiment, the terminal module 30 is in a normal state when the detecting member 40 is not inserted into the operation portion of the terminal module 30, and the terminal module 30 is in a normal state, as shown in fig. 6, when the detecting member 40 is inserted into the terminal module 30, the zone module 10 and the relay device are both in normal operation, and current passes through the zone module 10, the terminal module 30, the relay module 20, and finally returns to the zone module 10 to form a loop. When detection is required, as shown in fig. 9, the first terminal and the third terminal may be disconnected and connected through an ammeter for detection.
Optionally, referring to fig. 4 again, the detecting member 40 is provided with a clamping protrusion 401 and a handle 402, and the clamping protrusion 401 is clamped and fixed with the clamping groove 305 on the terminal module 30, so that the detecting member 40 is inserted into the operation portion of the terminal module 30 and is stably connected.
In this embodiment, the detecting member 40 is provided with a clamping protrusion 401 and a handle 402, the clamping protrusion 401 can be clamped and fixed with a clamping groove 305 on the terminal module 30, so that the detecting member 40 can be inserted into the operation portion of the terminal module 30 and can be stably connected to ensure the detection safety, and the handle 402 is arranged to facilitate the detection control of an operator.
Further, referring again to fig. 3 and 4, the first connection terminal 301 includes a first contact 3011, and the second connection terminal 302 includes a second contact 3021; electrically connecting the first connection terminal 301 and the second connection terminal 302 includes:
after the inspection piece is inserted into the terminal module 30, the main conductive part of the inspection piece pushes the first contact 3011 and the second contact 3021 to be relatively far away from each other, and the main conductive part is abutted against the first contact 3011 and the second contact 3021 respectively, so that the first contact 3011 and the second contact 3021 are electrically connected.
Specifically, the first connection terminal 301 and the second connection terminal 302 are symmetrically arranged bent connection terminals, and the first terminal and the second connection terminal 302 are elastic members, after the inspection piece is inserted into the terminal module 30, a main conductive portion of the inspection piece pushes the first contact 3011 and the second contact 3021 to be relatively far away, and abuts against the first contact 3011 and the second contact 3021, so that the main conductive portion of the inspection piece is electrically connected with the first contact 3011 and the second contact 3021, and the first contact 3011 and the second contact 3021 have a tendency of elastic return to tightly abut against the main conductive portion of the inspection piece. Preferably, the contact surfaces of the first and second contacts 3011 and 3021 and the conductive part of the main body of the service part are flat surfaces to improve the stability of the electrical connection.
Further, the first connection terminal 301 further includes a third contact 3012, the second connection terminal 302 further includes a fourth contact 3022, the third connection terminal 303 includes a fifth contact 3031 and a sixth contact 3032, and the fourth connection terminal 304 includes a seventh contact 3041 and an eighth contact 3042;
the third contact 3012 is electrically connected to the fifth contact 3031, and the fourth contact 3022 is electrically connected to the seventh contact 3041;
the sixth contact 3032 is electrically connected to the eighth contact 3042, the third contact 3012 is disconnected from the fifth contact 3031, the fourth contact 3022 is disconnected from the seventh contact 3041, and an electrical connection state between the third connection terminal 303 and the fourth connection terminal 304 is detected to detect a relay device when the first connection terminal 301 is disconnected from the third connection terminal 303 and the second connection terminal 302 is disconnected from the fourth connection terminal 304.
Specifically, the third connection terminal 303 and the fourth connection terminal 304 are symmetrically arranged bent connection terminals, and the third connection terminal 303 and the fourth connection terminal 304 are elastic members, the main body conductive part of the inspection piece pushes the sixth contact 3032 and the eighth contact 3042 to be relatively far away and abut against the sixth contact 3032 and the eighth contact 3042, so that the main body conductive part of the inspection piece is electrically connected with the sixth contact 3032 and the eighth contact 3042, the sixth contact 3032 and the eighth contact 3042 have a tendency of elastic return to tightly abut against the main body conductive part of the inspection piece, meanwhile, in the process that the sixth contact 3032 and the eighth contact 3042 are relatively far away, the third connection terminal 303 and the fourth connection terminal 304 are driven to be partially deformed, so that the fifth contact 3031 is far away from the third contact 3012, the seventh contact 3041 is far away from the fourth contact 3022, so as to disconnect the electrical connection between the third contact 3012 and the fifth contact 3031, the fourth contact 3022 can be electrically disconnected from the seventh contact 3041. Preferably, the contact surfaces of the third contact 3012 and the fifth contact 3031, the contact point of the fourth contact 3022 and the seventh contact 3041, and the contact surfaces of the sixth contact 3032 and the eighth contact 3042 and the main body conductive part of the service part are flat, so as to improve the stability of the electrical connection.
It can be understood that the first connection terminal 301, the second connection terminal 302, the third connection terminal 303 and the fourth connection terminal 304 are elastic members, which can provide better contact pressure for the contacts on the connection terminals to ensure the excellent electrical connection.
Optionally, the terminal module 30, the relay protection module 20, and the area module 10 are respectively provided in plurality, and the terminal module 30 is in one-to-one correspondence with the relay protection module 20 and the area module 10.
Optionally, the zone module 10 is a loop segment with an independent loop; the zone module 10 includes at least one of a current transformer, a voltage transformer, and a signal relay.
The area module 10 is configured as a loop section having an independent loop, and may be configured to correspond to the terminal module 30 and the relay protection module 20, so as to perform independent safety measure operation, which is beneficial to the safety measure operation.
Optionally, the relay protection module 20 is a CT current loop, and the CT current loop has an open circuit prevention function to provide circuit protection.
Optionally, the terminal box further includes a plurality of safety measures covers 50, the safety measures covers 50 are disposed in one-to-one correspondence with the terminal modules 30, the safety measures covers 50 are used for sealing the terminal modules 30, the safety measures covers 50 insulate and seal the operation portions of the terminal modules 30, and when the safety measures covers 50 open the terminal modules 30, the safety measures covers 50 expose the operation portions of the terminal modules 30.
When detecting, can only open the safety measure lid 50 on the terminal module 30 that needs to detect, the safety measure lid 50 on other terminal modules 30 keeps the encapsulated situation, can avoid the maloperation, the condition emergence of bumping by mistake, mistake disconnection. In addition, the safety measure cover 50 opens a signal circuit that can disconnect the terminal module 30 to ensure safety of detection of the terminal module 30.
When the current loop that maintainer need be directed against terminal module 30 carries out the safety measure operation, be different from the integral terminal row of traditional terminal incasement, the maintenance return circuit of the terminal case of this embodiment distributes according to the operation object and forms a plurality of regional modules 10, a plurality of terminal modules 30 and a plurality of module 20 of protecting from, and the terminal module 30 that does not involve the maintenance object shelters from through setting up safety measure lid 50, need not to hang the tablet and hang the insulating sticky tape and can operate to the appointed region. For example, when the disconnecting link or the switchgear needs to be repaired, the safety cover 50 of the operation area corresponding to the mechanism is only required to be pulled out, and the signal circuit common to the terminal module 30 is disconnected.
In an embodiment, the terminal box further includes a control unit, the safety cover 50 is provided with a connecting member, when the safety cover 50 closes the operation portion of the terminal module 30, the connecting member signal-connects the control unit and the terminal module 30 to form a signal loop, and when the safety cover 50 is opened to expose the operation portion of the terminal module 30, the connecting member moves to disconnect the signal connection between the control unit and the terminal module 30, so that the opening and closing of the safety cover 50 can control the signal connection between the inside of the terminal module 30 and the control unit.
In an embodiment, the safety measure cover 50 is provided with a rubber plug, the rubber plug is matched with the operation part of the terminal module 30, so that the safety measure cover 50 can insulate and seal the operation part of the terminal module 30, not only can the sealing and shielding of the operation part of the terminal module 30 be realized, the mistaken touch and the mistaken connection of an operator can be avoided, the sealing of the operation part can be realized through the rubber plug, the service life of the terminal module 30 caused by the infiltration of rainwater is shortened, even the terminal module 30 can be completely free from the influence of the external environment, and the maintenance of the terminal module 30 is avoided.
Further, the terminal box further comprises a temperature measuring piece and an insulating patch, wherein the insulating patch is connected with the wiring terminal in the terminal module 30 and the temperature measuring piece, so that the temperature measuring piece can sense the temperature of the wiring terminal, and when the temperature of the wiring terminal reaches a preset value, the temperature measuring piece can send out a warning signal and transmit the warning signal to the host.
The test system further comprises a temperature measuring piece and an insulating patch, wherein the insulating patch is connected with the connecting terminal and the temperature measuring piece in the terminal module 30, so that the temperature measuring piece can sense the temperature of the connecting terminal, the temperature of the connecting terminal is monitored, and high-temperature burning danger is prevented.
Furthermore, the host can receive the warning signal that the temperature measurement piece sent to send alarm signal, in order to warn the control personnel. Preferably, the host can control the acousto-optic warning device to emit at least one of sound and light signals to form an alarm signal, so that monitoring personnel can find the warning signal conveniently. Of course, in other embodiments, the warning signal may also be a warning signal displayed on the display screen, and the warning signal may be saved only when the high temperature problem of the wiring terminal is solved, and the warning signal is manually released.
In one embodiment, when the temperature of the wiring terminal reaches a preset value, the temperature measuring part can send out a warning signal and transmit the warning signal to the host, and the upper limit temperature of the wiring terminal can be set so as to ensure the timeliness of warning.
Based on the above-disclosed terminal box test method, the present application also discloses a terminal box applied to any one of the above-described test methods, the terminal box including: a terminal module 30, a relay protection module 20 and an area module 10; the terminal module 30 is disposed between the relay protection module 20 and the area module 10; the terminal module 30 is provided with an operation part for inserting a detection piece 40, and the detection piece 40 is inserted into the terminal module 30;
the terminal module 30 includes a first connection terminal 301, a second connection terminal 302, a third connection terminal 303 and a fourth connection terminal 304, the first connection terminal 301 and the second connection terminal 302 are electrically connected to the area module 10, the third connection terminal 303 and the fourth connection terminal 304 are electrically connected to the relay protection module 20, the first connection terminal 301 is electrically connected to the third connection terminal 303, the second connection terminal 302 is electrically connected to the fourth connection terminal 304, so that the relay protection module 20 is electrically connected to the area module 10.
For details of other structures of the terminal box, please refer to the structure disclosed in the above terminal box testing method, and the embodiments of the present application are not described in detail.
The present application has been described in detail with reference to specific embodiments and illustrative examples, but the description is not intended to limit the application. Those skilled in the art will appreciate that various equivalent substitutions, modifications or improvements may be made to the presently disclosed embodiments and implementations thereof without departing from the spirit and scope of the present disclosure, and these fall within the scope of the present disclosure. The protection scope of this application is subject to the appended claims.
Claims (8)
1. A terminal box testing method, characterized in that the testing method is applied to a terminal box, the terminal box comprising: the relay protection module comprises a terminal module, a relay protection module and an area module; the terminal module is arranged between the relay protection module and the area module; the terminal module is provided with an operation part, the operation part is used for inserting a detection piece, and the detection piece is inserted into the terminal module;
the terminal module comprises a first wiring terminal, a second wiring terminal, a third wiring terminal and a fourth wiring terminal, the first wiring terminal and the second wiring terminal are electrically connected with the area module, the third wiring terminal and the fourth wiring terminal are electrically connected with the relay protection module, the first wiring terminal is electrically connected with the third wiring terminal, and the second wiring terminal is electrically connected with the fourth wiring terminal so as to electrically connect the relay protection module with the area module;
the method comprises the following steps:
inserting the detection piece into an operation part of an end module, and electrically connecting the first connecting terminal and the second connecting terminal so as to short-circuit the area module side;
disconnecting the first connecting terminal from the third connecting terminal, and disconnecting the second connecting terminal from the fourth connecting terminal, so as to enable the relay protection module to be laterally disconnected;
detecting an electric connection state between the third connection terminal and the fourth connection terminal to detect the relay protection module;
the first wire connection terminal comprises a first contact and the second wire connection terminal comprises a second contact; electrically connecting the first connection terminal and the second connection terminal, comprising:
after the maintenance part is inserted into the terminal module, a main body conductive part of the maintenance part pushes the first contact and the second contact to be relatively far away, and the first contact and the second contact are respectively abutted to electrically connect the first contact and the second contact;
the first wiring terminal further comprises a third contact, the second wiring terminal further comprises a fourth contact, the third wiring terminal comprises a fifth contact and a sixth contact, and the fourth wiring terminal comprises a seventh contact and an eighth contact;
the third contact is electrically connected with the fifth contact, and the fourth contact is electrically connected with the seventh contact;
electrically connecting the sixth contact with the eighth contact, disconnecting the third contact from the fifth contact, and disconnecting the fourth contact from the seventh contact.
2. The method according to claim 1, wherein the terminal module, the relay protection module and the area module are respectively provided in plurality, and the terminal module is provided in one-to-one correspondence with the relay protection module and the area module.
3. The method of claim 1, wherein the zone module is a loop segment having an independent loop; the zone module includes at least one of a current transformer, a voltage transformer, and a signal relay.
4. The method of claim 1, wherein the relay protection module is a CT current loop.
5. The method of claim 1, wherein the terminal box further comprises a plurality of safety covers, the safety covers are arranged in one-to-one correspondence with the terminal modules, the safety covers are used for closing the terminal modules, the safety covers are used for insulating and sealing the operation parts of the terminal modules, and when the safety covers open the terminal modules, the safety covers expose the operation parts of the terminal modules.
6. The method according to claim 1, wherein the detecting member is provided with a clamping protrusion and a handle, and the clamping protrusion is clamped and fixed with the clamping groove on the terminal module so that the detecting member is inserted into the operating part of the terminal module and is stably connected.
7. The method as claimed in claim 1, wherein the terminal box further comprises a temperature measuring member and an insulating patch, the insulating patch connects the terminal block in the terminal module with the temperature measuring member so that the temperature measuring member can sense the temperature of the terminal block, and when the temperature of the terminal block reaches a preset value, the temperature measuring member can send out a warning signal and transmit the warning signal to the host machine.
8. A terminal box to be used in the testing method according to any one of claims 1 to 7, the terminal box comprising: the relay protection module comprises a terminal module, a relay protection module and an area module; the terminal module is arranged between the relay protection module and the area module; the terminal module is provided with an operation part, the operation part is used for inserting a detection piece, and the detection piece is inserted into the terminal module;
the terminal module comprises a first wiring terminal, a second wiring terminal, a third wiring terminal and a fourth wiring terminal, the first wiring terminal and the second wiring terminal are electrically connected with the region module, the third wiring terminal and the fourth wiring terminal are electrically connected with the relay protection module, the first wiring terminal is electrically connected with the third wiring terminal, the second wiring terminal is electrically connected with the fourth wiring terminal, and therefore the relay protection module is electrically connected with the region module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011339544.2A CN112505453B (en) | 2020-11-25 | 2020-11-25 | Terminal box testing method and terminal box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011339544.2A CN112505453B (en) | 2020-11-25 | 2020-11-25 | Terminal box testing method and terminal box |
Publications (2)
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208334618U (en) * | 2018-05-15 | 2019-01-04 | 深圳供电局有限公司 | A kind of quick connector for secondary loop of mutual inductor test |
| CN210053156U (en) * | 2019-08-20 | 2020-02-11 | 云南电网有限责任公司电力科学研究院 | Intrinsically safe terminal box |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN202695996U (en) * | 2012-06-14 | 2013-01-23 | 国家电网公司 | Terminal box cover |
| CN206223821U (en) * | 2016-11-22 | 2017-06-06 | 国网浙江省电力公司绍兴供电公司 | A kind of integration peace arranges test connecting box |
| CN110440938A (en) * | 2019-09-04 | 2019-11-12 | 云南电网有限责任公司昆明供电局 | A kind of terminal box and its application method with temp sensing function |
| CN110456113B (en) * | 2019-09-18 | 2021-10-08 | 云南电网有限责任公司电力科学研究院 | Plug-in current intrinsic safety terminal |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208334618U (en) * | 2018-05-15 | 2019-01-04 | 深圳供电局有限公司 | A kind of quick connector for secondary loop of mutual inductor test |
| CN210053156U (en) * | 2019-08-20 | 2020-02-11 | 云南电网有限责任公司电力科学研究院 | Intrinsically safe terminal box |
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