CN218068228U - Simple relay checking table - Google Patents
Simple relay checking table Download PDFInfo
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- CN218068228U CN218068228U CN202221489833.5U CN202221489833U CN218068228U CN 218068228 U CN218068228 U CN 218068228U CN 202221489833 U CN202221489833 U CN 202221489833U CN 218068228 U CN218068228 U CN 218068228U
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Abstract
The utility model discloses a simple and easy relay check table, including the relay check table body, the relay check table body is square casing, installs a plurality of modules respectively in casing inside, connects through the circuit between to articulated have a control panel that can overturn in one side of casing, set up a plurality ofly on control panel and module size assorted installation notch, the module includes relay check module, power module, display module selects adjusting module and additional module, wherein relay check module quantity is a plurality of, is used for linking to each other with the relay that is detected, power module is used for opening or closing the power supply of relay check table body and control it, display module is used for showing measuring voltage, electric current, power and the measuring resistance of the relay that is detected, select adjusting module to be used for adjusting the output voltage of relay check table. The utility model discloses possess characteristics such as safe and reliable, maneuverability is strong, low price.
Description
Technical Field
The utility model relates to a simple and easy relay check-up table belongs to relay protection equipment field.
Background
In the routine maintenance work of the relay protection equipment, besides the protection device, a large number of intermediate relays need to be checked, wherein the intermediate relays comprise a switching-on/off intermediate relay, a signal relay, a power supply monitoring relay and the like, the traditional checking method is that the intermediate relays are pulled out from a base, and then a relay protection checker or a direct-current power supply output device is used for respectively checking parameters such as action voltage, return voltage, action power, contact loop resistance and the like of the relay, and the specific operation steps are as follows:
1) The power output end of the relay protection calibrator or the direct-current power output device is connected to the power input contact pin of the relay by using a test wire and an alligator clip;
2) Monitoring the contact overturning condition of the relay by using a universal meter;
3) Slowly raising the output of the instrument direct-current power supply until the relay acts, observing that the relay contact is turned over, keeping the action state of the relay, and recording the action voltage;
4) Slowly lowering the DC power supply output of the instrument until the relay returns, observing the initial state of the relay contact, and recording the return voltage;
5) Adjusting the output of the instrument direct-current power supply until the relay reliably acts, keeping the state, and measuring the contact resistance of the contact loops one by using a universal meter to ensure that the normally open contact is reliably closed and the normally closed contact is reliably opened;
6) Stopping the output of the instrument direct current power supply, and measuring the contact resistance of the contact loops one by using a universal meter; the reliable closing of the normally closed contact and the reliable disconnection of the normally open contact are ensured;
7) And after the measured data of the relay is qualified, removing the test connection of the intermediate relay and inserting the test connection back to the original base.
The traditional mode is still the mainstream intermediate relay checking method so far, and although the checking work can be completed, the traditional mode has the following significant defects:
1) One person operates the test instrument, and one person uses the contact overturning condition of the universal variable monitoring relay, so that at least 2 persons are needed to cooperate;
2) The crocodile clip is used for fixing the test wire to a contact pin of the intermediate relay, so that the test wire is easy to fall off, and a direct current loop short circuit and a personal electric shock event can be caused;
3) The method has the advantages that the universal meters are required to be used for measuring the connection conditions of all contact loops of the intermediate relay one by one, the contact resistance is large, and the operation efficiency is low;
in summary, although the performance of the relay can be verified by using the conventional verification method, the verification method is relatively clumsy, wastes valuable human resources, and causes a large workload for the team with fewer maintenance personnel at present.
Disclosure of Invention
The to-be-solved technical problem of the utility model is to provide a simple and easy relay check-up table, possess characteristics such as safe and reliable, maneuverability is strong, low price, can high efficiency's check-up relay's performance, shorten maintenance personal operating time, provide the guarantee for personal safety simultaneously.
In order to solve the technical problem, the utility model provides a technical scheme is: the utility model provides a simple and easy relay check table, includes relay check table body, relay check table body is square casing, installs a plurality of modules respectively in casing inside, connects through the circuit between to it has a control panel that can overturn to articulate in one side of casing, set up a plurality ofly on control panel with module size assorted installation notch, when for control panel lid, the module that corresponds is installed to embedding in every installation notch, the module includes relay check module, power module, display module, selects adjusting module and additional module, and wherein relay check module quantity is a plurality of, is used for linking to each other with the relay that is detected, power module is used for opening or closing the power supply of relay check table body and control it, display module is used for showing measuring voltage, electric current, power and the measuring resistance of the relay that is detected, select adjusting module to be used for adjusting the output voltage of relay check table.
Preferably, the method comprises the following steps: the relay checking module is composed of a relay base and a contact switch, a contact pin is arranged on the relay base, the contact pin is inserted into a hole of the corresponding relay base and used for being connected with a relay, the contact switch is used for switching a relay contact needing to be measured, the power supply module is composed of a charging power supply interface, a power switch and a ground wire interface, the charging power supply interface is used for supplying power to the whole relay checking platform through an external connection source, the power switch is used for controlling the opening or closing of a control panel, the ground wire interface is used for grounding wires, the display module comprises a first display table and a second display table, the first display table is used for displaying the measured action voltage, action power and return voltage of the relay, the second display table is used for displaying the measured direct current resistance of the relay contact, the selection adjusting module comprises a voltage adjusting knob and a relay selection switch, the voltage adjusting knob is used for adjusting the output voltage, the voltage is added to the power supply input end of the checking module, the relay selection switch is used for selecting the relay base to be checked, meanwhile, other relay bases are in a power failure state, the additional debugging module is an additional debugging interface, the additional interface comprises an additional power supply interface and the relay contact and the relay type matching with the other relay type, and the external connection interface is used for expanding the range of the relay.
Preferably, the method comprises the following steps: the utility model discloses a control panel's relay calibration module, including control panel, charging source interface, external contact interface, switch and ground wire interface, charging source interface installs the upper left corner at control panel through the installation notch, and install external power source interface from last to down in proper order through the installation notch under charging source interface on control panel, external contact interface and switch and ground wire interface, its charging source interface's right side is from nearly to being far away in proper order for first display table, the second display table, relay selector switch and voltage regulation knob, and first display table, the second display table, relay selector switch and voltage regulation knob install a plurality of parallel relay calibration modules of arranging through the installation notch in the lower left corner of control panel under, the upper left corner in every relay calibration module is the relay base, its lower right corner is contact change over switch.
Preferably, the method comprises the following steps: the lower part of the relay base is correspondingly provided with contact description clamping grooves, a relay contact configuration diagram is respectively placed in each contact description clamping groove, and each contact is rapidly positioned by being matched with the contact selector switch, so that the measuring accuracy is ensured.
Preferably, the method comprises the following steps: the power supply module is used for providing an AC220V inversion alternating current power supply for the relay checking table.
Preferably, the method comprises the following steps: the gear of the contact switch is matched with the number of the relay contacts and used for switching the relay contacts to be measured, and when the resistance of one contact is measured, the contact switch is switched to the next gear to measure the loop resistance of other contacts.
The utility model has the advantages as follows:
1) The utility model relates to a simple relay calibration stand, which has the functions of measuring the action voltage, the return voltage and the action power, adopts a fixed calibration base, only needs to extract the relay to be calibrated from a switch cabinet and insert the relay into the corresponding base of the calibration platform, is provided with an integrated display table for measuring the voltage, the current and the power on a panel, and can easily complete the calibration work of the performance by adjusting a voltage output knob TJ;
2) The utility model has the function of measuring the direct resistance of the relay contact circuit, adopts an integrated wiring design in the relay contact circuit, can select the relay contact circuit to be measured only by rotating a contact selector switch QH, is provided with a resistance display meter on a panel, and is provided with a contact description clamping groove below a relay base, and all the contact circuits of the relay can be checked out at one time without changing the wiring to obtain the direct resistance;
3) The external debugging port WT arranged in the utility model has double functions;
4) The device can be used for verifying other types of relays; 2) When no AC power supply is used, other DC power supply devices can be used for carrying out power supply debugging on the relay calibration console through the external power supply interface, so that the application range of the relay calibration console is wider;
5) The utility model normally adopts the inversion of the high-power energy storage power supply module to supply power, does not need to be additionally connected with the input of a 220V alternating current power supply, is convenient to use and facilitates the on-site installation, debugging and wiring work;
6) The utility model discloses avoided the direct current loop short circuit to cause equipment to damage and personnel not to bump the electric shock accident that electrified return circuit leads to, consequently its security, reliability are higher.
7) The utility model provides a relay check-up module is last to set up a plurality of check-up pittings, can once only accomplish the check-up work of a plurality of relays, very big improvement work efficiency, shortened the maintenance time.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic diagram of the present invention.
Detailed Description
To make the objects, technical solutions and advantages of the present invention more clearly understood by those skilled in the art, the present invention will be further described with reference to the accompanying drawings and examples.
In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "lateral", "vertical", and the like are the directions or positional relationships shown in the drawings, and are only for convenience of description of the present invention, and do not indicate or imply that the device or element referred to must have a specific direction, and therefore, should not be construed as limiting the present invention.
As shown in fig. 1, a simple relay calibration stand comprises a relay calibration stand body, the relay calibration stand body is a square shell, a plurality of modules are respectively installed inside the shell and connected through a circuit, a reversible control panel 1 is hinged to one side of the shell, a plurality of installation notches 20 matched with the module size are formed in the control panel 1, corresponding modules are embedded into the installation notches 20 when the control panel 1 is covered, the modules comprise a relay calibration module 2, a power supply module 3 and a display module 4, a selection adjusting module 5 and an additional module, wherein the number of the relay calibration module 2 is multiple and used for being connected with a detected relay, the power supply module 3 is used for supplying power to the relay calibration stand body and controlling the relay calibration stand body to be opened or closed, the display module 4 is used for displaying the measurement voltage, the current, the power and the measurement resistance of the detected relay, and the selection adjusting module 5 is used for adjusting the output voltage of the relay calibration stand.
The relay checking module 2 is composed of a relay base DZ and a contact point switch QH, a contact pin 8 is arranged on the relay base DZ, the contact pin is inserted into a hole of the corresponding relay base and is used for being connected with a relay, the contact point switch QH is used for switching a relay contact point to be measured, the power module 3 is composed of a charging power interface 9, a power switch 10 and a ground wire interface 11, wherein the charging power interface 9 is used for supplying power to the whole relay checking platform by an external power source, the power switch 10 is used for controlling the opening or closing of the control panel 1, the ground wire interface 11 is used for grounding wires, the display module 4 comprises a first display table 18 and a second display table 19, the first display table 18 is used for displaying the measured action voltage, action power and return voltage of the relay, the second display table 19 is used for displaying the measured direct current resistance of the relay contact point, the selection adjusting module 5 comprises a voltage adjusting knob 12 and a relay selecting switch XZ, wherein the voltage adjusting knob 12 is used for adjusting the output voltage, the voltage is applied to the input end of the power source to be checked, the relay selecting switch XZ is used for selecting the base to be in the state, other relay contact points to be in the same state, the relay checking base 14, the relay contact point is used for being matched with the external power source, the external interface 16, and the external interface for adding the relay checking platform, and the external interface 16, and the external interface for adding the relay, and the relay.
The utility model discloses a control panel, including control panel 1, rechargeable power source interface 9, add power source interface 15, add contact interface 16 and switch 10 and ground wire interface 11, it is first demonstration table 18 from nearly to far in proper order to be located control panel 1 on the notch from last to installing additional power source interface 15, add contact interface 16 and switch 10 and ground wire interface 11 under rechargeable power source interface 9, its rechargeable power source interface 9's right side is from near to far away, second demonstration table 19, relay selection switch XZ and voltage regulation knob 12, and first demonstration table 18, second demonstration table 19, relay selection switch XZ and voltage regulation knob 12 are located the lower left corner of control panel and install a plurality of relay check module 2 of arranging in parallel through the installation notch under, the upper left corner in every relay check module 2 is relay base DZ, its lower right corner is contact change over switch QH.
The lower part of the relay base DZ is correspondingly provided with a contact description clamping groove 17, a relay contact configuration diagram is respectively placed in each contact description clamping groove 17, and each contact is rapidly positioned by matching with a contact selector switch QH, so that the measuring accuracy is ensured.
The power module 3 is used for providing an AC220V inversion alternating current power supply for the relay checking table. The gear of the contact switch QH is matched with the number of the relay contacts and used for switching the relay contacts to be measured, and when the resistance of one contact is measured, the contact switch QH is switched to the next gear to measure the loop resistance of other contacts.
Wherein the additional debugging port has two functions: 1) An add-on power interface and an add-on contact interface are provided that may be used to verify other types of relays. Because the field device relays are various and can reach dozens of types, the relay check pithead cannot be manufactured for each type. In order to enlarge the application range of the portable relay quick calibration device, an additional debugging port is additionally arranged. The external debugging power interface is connected to the relay power input terminal by using a test wire, and the external debugging contact interface is connected to the relay contact loop terminal by using a test wire, so that after the two steps of operation are completed, the performance verification of other types of relays can be completed by the quick verification device; 2) When the portable relay quick calibration device power module breaks down, direct current power generation devices such as Sverker 750, high power AQ 660 can still be used and connected to an external power interface through a test line to provide a direct current calibration power supply for the relay calibration stand, the size of output direct current voltage needs to be adjusted by the direct current power generation device, and the tests of the action voltage, the return voltage and the action power of the relay are completed by reading the voltage and the current output by the direct current power generation device. Because the meter power supply of the portable relay quick calibration device is lost, the resistance of the contact loop needs to be measured by matching with a universal meter of the Fluke 179 type and other types, and after the universal meter is adjusted to a resistance measurement gear, a measurement meter pen is connected to an external debugging contact interface to directly measure the direct current resistance of each contact loop, so that the performance calibration of the relay is completed.
For ease of understanding, a schematic diagram of a relay checking station is provided, see fig. 2 in particular. In fig. 2, CD is a switch, QH1, QH2, and QH3 are a plurality of contact switches, and DZ1, DZ2, DZ3, DZ4, DZ5, and DZ6 are a plurality of relay sockets.
The utility model discloses a component composition and function as follows:
(1) The main components and parts
The device comprises a relay base, a contact change-over switch, a relay selection switch, a contact description clamping groove, a voltage adjusting knob, a power switch, a charging power interface, a power module, an additional debugging port, a ground wire interface, a first display table and a second display table. Its components are explained as follows:
1) A relay base: the relay base which is commonly used on site is adopted for fixed installation, and a relay base pithead is reserved on the panel, so that the relay base can be conveniently added and used subsequently. The internal wiring of the relay is required to be matched with circuits such as a relay selection switch, a contact point change-over switch and the like;
2) A contact switching switch: a plurality of gears are arranged, and the relay contact loop direct resistance to be measured is selected by rotating the switch;
3) A relay selection switch: a plurality of gears are arranged, and the function of the relay base to be verified is released by rotating the switch;
4) Contact description card slot: the contact description of the relay can be inserted, and the gear of the contact selector switch corresponding to each contact is displayed;
5) A voltage adjusting knob: the output size of the direct current power supply is adjusted through the knob;
6) A power switch: the output is used for starting and stopping the inversion voltage of the energy storage power supply module;
7) A charging power supply interface: the three-hole three-pin alternating current power socket is used for charging the energy storage power module;
8) The energy storage power supply module: a large-capacity invertible energy storage power supply is adopted, and the inversion output voltage is AC 220V;
9) An additional debugging port: the device is used for verifying other types of relays and is used as a direct-current backup power supply input port of the verifying device;
10 Ground line interface): the device is used for being connected with the ground to prevent electric shock caused by electrification of a shell of the checking device;
11 First display table (voltage, power display table): the relay coil display device is used for displaying parameters such as action voltage, return voltage, action power and the like of the relay coil;
12 Second display table (resistance display table): and the relay contact loop direct resistance is used for displaying the measured direct resistance.
The utility model discloses a working process and debugging step as follows:
1) The relay to be checked is inserted into the corresponding relay base, and a plurality of relays can be inserted at one time;
2) Switching on an inversion voltage output switch of the energy storage power supply module;
3) The relay selection switch is turned to the gear of the relay to be verified, and the verification function of the relay base is released;
4) Slowly rotating the voltage adjusting knob clockwise until the relay acts, and reading the action voltage and the action power of the relay on a display table for measuring the voltage, the current and the power;
5) Slowly rotating the voltage adjusting knob anticlockwise until the relay returns, and reading the return voltage of the relay on a display table for measuring the voltage, the current and the power;
6) Rotating the voltage adjusting knob clockwise until reaching the rated voltage of the relay;
7) Comparing the contact description in the contact description clamping groove, selecting a contact selector switch gear, sequentially measuring the direct resistance of all contact loops of the relay, and reading the measured resistance value in a measured resistance display table;
8) Zeroing the voltage adjusting knob;
9) Resetting the relay selection switch to zero;
10 Zero the selection contact switch gear;
11 The relay selection switch is turned to another relay gear to be verified, and the relay base verification function is released;
12 Repeating the steps to complete the verification work of the rest relays.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention.
Claims (6)
1. The utility model provides a simple and easy relay check table, includes relay check table body, its characterized in that: the utility model discloses a relay calibration stand, including relay calibration stand body, control panel (2), power module (3), display module (4), regulation module (5) and additional module, wherein relay calibration stand (2) quantity is a plurality of, is used for the relay calibration stand output voltage who is used for adjusting relay calibration stand, the relay calibration stand body is square casing, installs a plurality of modules respectively in casing inside, connects through the circuit between to it has a control panel (1) that can overturn to articulate in one side of casing, has seted up a plurality ofly and module size assorted installation notch (20) on control panel (1), when for control panel (1) lid, and the module is embedded in every installation notch (20) is installed and is corresponded the module, the module includes relay calibration stand (2), power module (3), display module (4) are used for the measurement voltage, electric current, power and the measuring resistance of the relay that is detected of demonstration module (5), select regulation module (5) to be used for adjusting the output voltage of relay calibration stand.
2. The simple relay calibration stand of claim 1, characterized in that: the relay checking module (2) is composed of a relay base (DZ) and a contact point change-over switch (QH), a contact pin (8) is arranged on the relay base (DZ) and inserted into a corresponding hole of the relay base to be connected with a relay, the contact point change-over switch (QH) is used for switching a relay contact point to be measured, the power supply module (3) is composed of a charging power supply interface (9), a power supply switch (10) and a ground wire interface (11), wherein the charging power supply interface (9) is used for supplying power to the whole relay checking platform by an external power supply, the power supply switch (10) controls the opening or closing of the control panel (1), and the ground wire interface (11) is used for a ground wire, the display module (4) comprises a first display meter (18) and a second display meter (19), wherein the first display meter (18) is used for displaying measured action voltage, action power and return voltage of the relay, the second display meter (19) is used for displaying measured direct current resistance of a relay contact, the selection adjusting module (5) comprises a voltage adjusting knob (12) and a relay selection switch (XZ), the voltage adjusting knob (12) is used for adjusting output voltage, the voltage is applied to a power supply input end of the relay to be calibrated, the relay selection switch (XZ) is used for selecting a relay base to be calibrated, other relay bases are in a power loss state, and the additional module is an additional debugging port (14), the external debugging port (14) comprises an external power supply interface (15) and an external contact interface (16), the number of the external power supply interfaces (15) is the same as that of the external contact interfaces (16), and the external power supply interfaces and the external contact interfaces are used for matching with other types of relays to enlarge the application range of the relay checking platform.
3. The simple relay calibration stand of claim 2, wherein: the utility model discloses a control panel's relay calibration module, including control panel (1), charging power source interface (9), and be close to and far away from being in proper order for first display table (18) on the right side of its charging power source interface (9), second display table (19), relay option switch (XZ) and voltage adjust knob (12), and first display table (18), second display table (19), relay calibration module (2) that a plurality of parallels were arranged are installed through the installation notch in the lower left corner of control panel in the position under of charging power source interface (9) from last plus power source interface (15) installed down in proper order through the installation notch in control panel (1), and the upper left corner in every relay calibration module (2) is relay base (DZ), its lower right corner is contact change over switch (QH).
4. The simple relay calibration stand of claim 3, wherein: the lower part of the relay base (DZ) is correspondingly provided with a contact description clamping groove (17), a relay contact configuration diagram is respectively placed in each contact description clamping groove (17), and each contact is matched with a contact selector switch (QH) to quickly position each contact, so that the measuring accuracy is ensured.
5. The simple relay calibration stand of claim 3, wherein: the power supply module (3) is used for providing an AC220V inversion alternating current power supply for the relay checking table.
6. The simple relay calibration stand of claim 4, wherein: the gear of the contact switch (QH) is matched with the number of the relay contacts and used for switching the relay contacts to be measured, and when the resistance of one contact is measured, the contact switch is switched to the next gear to measure the loop resistance of other contacts.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221489833.5U CN218068228U (en) | 2022-06-15 | 2022-06-15 | Simple relay checking table |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202221489833.5U CN218068228U (en) | 2022-06-15 | 2022-06-15 | Simple relay checking table |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116125265A (en) * | 2023-01-19 | 2023-05-16 | 中核检修有限公司 | Relay calibrator |
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2022
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116125265A (en) * | 2023-01-19 | 2023-05-16 | 中核检修有限公司 | Relay calibrator |
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