CN112198427A - Intermediate relay rapid calibration device and method - Google Patents
Intermediate relay rapid calibration device and method Download PDFInfo
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- CN112198427A CN112198427A CN202011195758.7A CN202011195758A CN112198427A CN 112198427 A CN112198427 A CN 112198427A CN 202011195758 A CN202011195758 A CN 202011195758A CN 112198427 A CN112198427 A CN 112198427A
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- intermediate relay
- terminal hole
- module
- auxiliary contact
- grounding
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
- G01R31/3277—Testing of circuit interrupters, switches or circuit-breakers of low voltage devices, e.g. domestic or industrial devices, such as motor protections, relays, rotation switches
- G01R31/3278—Testing of circuit interrupters, switches or circuit-breakers of low voltage devices, e.g. domestic or industrial devices, such as motor protections, relays, rotation switches of relays, solenoids or reed switches
Abstract
The invention belongs to the technical field of electrical maintenance of nuclear power stations, and particularly discloses a quick calibration device and a quick calibration method for an intermediate relay, wherein the calibration device comprises a connecting module, a display module and a power supply module, wherein the display module is electrically connected with an auxiliary contact of the intermediate relay through the connecting module and is used for displaying the on-off condition of the auxiliary contact of the intermediate relay; the power supply module is electrically connected with the auxiliary contact of the control coil of the intermediate relay through the connecting module and used for providing voltage for the control coil of the intermediate relay. The calibration device has the advantages of simple structure, easy operation, convenience and rapidness. In the verification process, the working condition of the auxiliary contact when the auxiliary contact is not electrified or electrified can be verified by the staff by using the device, the on-off condition of the auxiliary contact is directly displayed, the staff is prevented from using a universal meter to measure on site, the verification time is shortened, and the verification step is optimized.
Description
Technical Field
The invention belongs to the technical field of electrical maintenance of nuclear power stations, and particularly relates to a device and a method for quickly calibrating an intermediate relay.
Background
732 quadrupole intermediate relays are arranged in the conventional island of the second-stage engineering of the Tianwan nuclear power station and the 6kV industrial electric disk cabinet of the nuclear island. These intermediate relays play an important role in the relay protection of 6kV plant electric systems of nuclear power plants, and are used as basic elements constituting a relay protection device for transmitting signals and simultaneously controlling a plurality of circuits. In addition, the intermediate relay is different from the rest relays in that the number of contact sets is large, so that the number of control contacts is expanded and the capacity of the contacts is increased for relay protection and automatic devices. The contents of the verification include the resistance of the coil to be measured, an operation value and return value test, the measurement of operation (return) time, and the inspection of the operation state of the contact in an actual load state, according to the use request of the relay. The intermediate relays installed on the 6kV service electric disc cabinet are large in number and contacts, so that the fact that workers need to spend more time and repeat more steps to check the auxiliary contacts of the intermediate relays during annual material changing overhaul or daily maintenance is undoubtedly predicted.
In order to shorten the checking time of the intermediate relay, optimize the checking steps and improve the checking efficiency, a worker independently designs the intermediate relay quick checking device. However, when the contact is checked in the past, the resistance of the multimeter needs to be used for measuring the on-off state of the contact so as to determine whether the on-off state of the auxiliary contact is normal or not, which brings inconvenience to the checking work in the overhaul project and influences the checking efficiency.
Disclosure of Invention
The invention aims to provide a device and a method for quickly calibrating an intermediate relay. In the verification process, the working condition of the auxiliary contact when the auxiliary contact is not electrified or electrified can be verified by the staff by using the device, the on-off condition of the auxiliary contact is directly displayed, the staff is prevented from using a universal meter to measure on site, the verification time is shortened, and the verification step is optimized.
The technical scheme for realizing the purpose of the invention is as follows:
a quick calibration device of an intermediate relay comprises a connecting module, a display module and a power supply module, wherein the display module is electrically connected with an auxiliary contact of the intermediate relay through the connecting module and is used for displaying the on-off condition of the auxiliary contact of the intermediate relay; the power supply module is electrically connected with the auxiliary contact of the control coil of the intermediate relay through the connecting module and used for providing voltage for the control coil of the intermediate relay.
The connecting module comprises a plurality of terminal holes; the display module comprises a plurality of parallel light-emitting lamps, and each light-emitting lamp is connected with a pair of auxiliary contacts of the intermediate relay in series through a terminal hole; the power supply module comprises a variable direct current voltage source, and the variable direct current voltage source is connected with an auxiliary contact of a control coil of the intermediate relay in series through a terminal hole.
The terminal holes in the connecting module comprise a first terminal hole group terminal hole 1A and a terminal hole 1B; a second terminal hole group terminal hole 2A, a terminal hole 2B; a third terminal hole group terminal hole 3A, a terminal hole 3B; a fourth terminal hole group terminal hole 4A, a terminal hole 4B; and fifth terminal hole group terminal hole a1, terminal hole a 2.
The power supply module further comprises a button switch, and the button switch is connected with the variable direct-current voltage source.
The button switch is an adjustable pressure type button switch.
The display module further comprises a plurality of groups of batteries, and each group of batteries is connected to a connecting loop of each light-emitting lamp and a pair of auxiliary contacts of the corresponding intermediate relay.
The checking device further comprises a grounding module, the grounding module comprises a grounding wire and a grounding hole, and the grounding wire is inserted into the grounding hole to complete grounding.
An operating method of an intermediate relay quick verification device, the method comprising the steps of:
(1) grounding the verification device through a grounding wire in the grounding module;
(2) the checking device and the intermediate relay are connected through a lead;
(3) under the non-electrified state of the intermediate relay, the working state of the auxiliary contact is detected through the display of a luminescent lamp in the display module;
(4) adjusting a variable DC voltage source in a power supply module;
(5) under the power-on state of the intermediate relay, the working state of the auxiliary contact is displayed and detected through a luminescent lamp in the display module;
(6) and (4) closing a variable direct-current voltage source in the power supply module, disassembling the conducting wire and a grounding wire in the grounding module, and finishing the checking work of the intermediate relay.
And (2) connecting each terminal hole in the checking device with the corresponding auxiliary contact pair of the intermediate relay through a lead.
In the step (4), the output voltage of the variable direct current voltage source in the power supply module is adjusted through a button switch in the power supply module.
The invention has the beneficial technical effects that:
(1) the intermediate relay quick calibration device can simultaneously calibrate the action conditions of a plurality of auxiliary contacts of the intermediate relay, shortens the calibration time, optimizes the calibration steps and improves the calibration efficiency;
(2) the intermediate relay rapid calibration device provided by the invention utilizes the luminescent lamp to display the on-off of the auxiliary contact of the intermediate relay, so that the intermediate relay rapid calibration device is more visual;
(3) the intermediate relay quick calibration device does not need to use a universal meter for calibration, and can effectively prevent human errors such as wrong gear selection of the universal meter and the like;
(4) the intermediate relay quick calibration device is connected with the intermediate relay through the terminal hole, so that the condition of repeated wiring in the traditional calibration process is avoided, and the intermediate relay quick calibration device is convenient for workers to use;
(5) the intermediate relay rapid calibration device is simple in structure, easy to operate and convenient to carry to use on site.
Drawings
Fig. 1 is a schematic circuit diagram of an intermediate relay quick calibration apparatus provided in the present invention;
fig. 2 is an appearance schematic diagram of an intermediate relay quick calibration apparatus provided by the present invention.
In the figure: 1-variable direct current voltage source, 2-battery, 3-luminescent lamp A, 4-luminescent lamp B, 5-luminescent lamp C, 6-luminescent lamp D, 7-ground wire, 8-terminal hole 3A, 9-terminal hole 3B, 10-terminal hole 4A, 11-terminal hole 4B, 12-ground hole, 13-terminal hole 2B, 14-terminal hole 2A, 15-terminal hole 1B, 16-terminal hole 1A, 17-terminal hole A2, 18-terminal hole A1, 19-button switch.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
As shown in fig. 1 and fig. 2, the intermediate relay rapid calibration apparatus provided by the present invention includes a connection module, a display module, a power supply module and a grounding module, wherein the display module is electrically connected to an auxiliary contact of an intermediate relay through the connection module, and is configured to display on/off conditions of the auxiliary contact of the intermediate relay; the power supply module is electrically connected with the auxiliary contact of the control coil of the intermediate relay through the connecting module and used for providing voltage for the control coil of the intermediate relay.
The connecting module comprises 5 groups of terminal holes, namely a first terminal hole group terminal hole 1A 16 and a terminal hole 1B 15; second terminal hole group terminal holes 2a 14, terminal holes 2B 13; a third terminal hole group terminal hole 3 A8, a terminal hole 3B 9; a fourth terminal hole group terminal hole 4a 10, a terminal hole 4B 11; and fifth terminal hole group terminal hole a 118, terminal hole a 217.
The display module comprises 4 parallel light-emitting lamps and 4 sets of batteries 2, wherein the light-emitting lamps are respectively a light-emitting lamp L13, a light-emitting lamp B4, a light-emitting lamp C5 and a light-emitting lamp D6, and each light-emitting lamp is powered by 1 set of batteries 2.
Each light emitting lamp in the display module is connected in series with a pair of auxiliary contacts of the intermediate relay through a set of terminal holes in the connection module. Specifically, the light emitting lamp L13 corresponds to a first pair of auxiliary contacts of the intermediate relay, and the light emitting lamp L13 is connected in series with the first pair of auxiliary contacts of the intermediate relay through the first terminal hole group terminal hole 1a 16, the terminal hole 1B 15, and the wire; the luminescent lamp B4 corresponds to a second pair of auxiliary contacts of the intermediate relay, and the luminescent lamp B4 is connected in series with the second pair of auxiliary contacts of the intermediate relay through the second terminal hole group terminal hole 2A 14, the terminal hole 2B 13 and a lead; the luminescent lamp C5 corresponds to a third pair of auxiliary contacts of the intermediate relay, and the luminescent lamp C5 is connected in series with the third pair of auxiliary contacts of the intermediate relay through a third terminal hole group terminal hole 3A 8, a terminal hole 3B 9 and a lead; the light emitting lamp D6 corresponds to the fourth pair of auxiliary contacts of the intermediate relay, and the light emitting lamp D6 is connected in series with the fourth pair of auxiliary contacts of the intermediate relay through the fourth terminal hole group terminal hole 4a 10, the terminal hole 4B 11, and the wire.
The power supply module comprises a variable direct current voltage source 1 and a button switch 19, wherein the button switch 19 is connected with the variable direct current voltage source 1, and the button switch 19 is an adjustable pressure type button switch which can be applied with different pressures to adjust the voltage output by the direct current voltage source 1.
The variable dc voltage source 1 in the supply module is connected in series with the auxiliary contacts of the control coil of the intermediate relay via a set of terminal holes in the connection module. Specifically, the variable direct-current voltage source 1 is connected in series with the auxiliary contacts A1, A2 of the control coil of the intermediate relay through the fifth terminal hole group terminal hole a 118, the terminal hole a 217, and the wire.
The grounding module comprises a grounding wire 7 and a grounding hole 12, and the grounding wire 7 is inserted into the grounding hole 12 to complete grounding.
The invention provides a quick intermediate relay checking device, which has the following specific working principle:
checking the auxiliary contact of the intermediate relay under the condition of no electrification: when the intermediate relay control coil is not electrified, the normally closed contact is in a closed state, the corresponding light emitting lamp which symbolizes the working state of the normally closed contact is lightened, and the normally open contact is in an open state, and the corresponding light emitting lamp which symbolizes the working state of the normally open contact is kept in an off state.
Checking the auxiliary contact of the intermediate relay under the condition of electrifying: pressing the button switch 19, adjusting the variable direct-current voltage source 1, applying rated voltage to a control coil of the intermediate relay, electrifying the intermediate relay, and starting to act, namely, the normally closed contact is normally opened and is in a disconnected state; the normally open contact is normally closed and is in a closed state. At this time, the light emitting lamp corresponding to the normally closed contact of the intermediate relay is turned off, and the light emitting lamp corresponding to the normally open contact of the intermediate relay is turned on.
In conclusion, the device completes the verification of different working conditions of the auxiliary contact of the intermediate relay when the auxiliary contact of the intermediate relay is not electrified and when the auxiliary contact of the intermediate relay is electrified. Moreover, the device can be used for simultaneously checking the action conditions of a plurality of auxiliary contacts of the intermediate relay, and visually displaying the working conditions of the intermediate relay by lighting or extinguishing the light-emitting lamp to finish the checking.
As shown in fig. 1 and 2, the present invention provides an operation method of an intermediate relay quick verification apparatus, including the steps of:
(1) grounding the verification device by means of a grounding line 7 in the grounding module
The grounding is completed by inserting the grounding wire 7 in the grounding module into the 12-grounding hole, so that electric shock accidents are avoided;
(2) connecting the calibration device and the intermediate relay by a wire
And taking 10 leads to carry out wiring of the checking device and the intermediate relay. 10 leads are divided into 5 groups, each group is two, and each group of terminal holes in the connecting module is connected with the corresponding auxiliary contact pairs on the intermediate relay through 1 group of leads. Taking two wires, wherein one end of each wire is respectively connected into a first terminal hole group terminal hole 1A 16 and a terminal hole 1B 15 in a connecting module of the checking device, and the other end of each wire is connected into a first pair of auxiliary contacts of the intermediate relay; taking two leads, wherein one end of each lead is respectively connected into a terminal hole 2A 14 and a terminal hole 2B 13 of a second terminal hole group in a connecting module of the checking device, and the other end of each lead is connected into a second pair of auxiliary contacts of the intermediate relay; connecting one ends of two wires into a third terminal hole group terminal hole 3A 8 and a terminal hole 3B 9 in a connecting module of the checking device respectively, and connecting the other ends of the two wires into a third pair of auxiliary contacts of the intermediate relay; one ends of two wires are respectively connected into a fourth terminal hole group terminal hole 4A 10 and a terminal hole 4B 11 in a connecting module of the checking device, and the other ends of the two wires are connected into a fourth pair of auxiliary contacts of the intermediate relay; connecting one ends of two wires into a fifth terminal hole group terminal hole A118 and a terminal hole A217 in a connecting module of the checking device respectively, and connecting the other ends of the two wires into auxiliary contacts A1 and A2 of a control coil of the intermediate relay respectively;
(3) under the non-energized state of the intermediate relay, the working state of the auxiliary contact is displayed and detected through a luminescent lamp in the display module
The first pair of auxiliary contacts corresponds to a light emitting lamp A3 in the display module, the second pair of auxiliary contacts corresponds to a light emitting lamp B4 in the display module, the third pair of auxiliary contacts corresponds to a light emitting lamp C5 in the display module, and the fourth pair of auxiliary contacts corresponds to a light emitting lamp D6 in the display module. When the intermediate relay is not electrified, if the auxiliary contact of the intermediate relay is in a closed state, the corresponding luminescent lamp in the display module is lighted, and when the auxiliary contact of the intermediate relay is in an open state, the luminescent lamp in the corresponding display module is still in an off state, the auxiliary contact of the intermediate relay is judged to be normal, otherwise, the auxiliary contact of the intermediate relay is considered to be in a fault;
(4) regulating a variable DC voltage source 1 in a power supply module
Pressing a button switch 19 in the power supply module to adjust the voltage output by the direct current voltage source 1 in the power supply module by applying different pressures to the button switch so as to apply rated voltage to a control coil of the intermediate relay;
(5) under the power-on state of the intermediate relay, the working state of the auxiliary contact is displayed and detected through the luminescent lamp in the display module
The control coil of the intermediate relay starts to act after being electrified, the normally closed contact is normally opened, the normally open contact is normally closed, if the light-emitting lamp in the corresponding display module is turned on from off, and turned off from on, the auxiliary contact of the intermediate relay is judged to be normal, otherwise, the auxiliary contact of the intermediate relay is considered to be in fault;
(6) the variable direct current voltage source 1 in the power supply module is closed, the lead and the grounding wire 7 in the grounding module are disassembled, and the checking work of the intermediate relay is finished
And (3) pressing a button switch 19 in the power supply module, adjusting a variable direct current voltage source 1 in the power supply module to 0V, disassembling the grounding wire 7 in the grounding module connected in the step (1) and the wire connected in the step (2), and finishing the checking work of the intermediate relay.
The present invention has been described in detail with reference to the drawings and examples, but the present invention is not limited to the examples, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present invention. The prior art can be adopted in the content which is not described in detail in the invention.
Claims (10)
1. The utility model provides a quick verifying attachment of auxiliary relay which characterized in that: the checking device comprises a connecting module, a display module and a power supply module, wherein the display module is electrically connected with the auxiliary contact of the intermediate relay through the connecting module and is used for displaying the on-off condition of the auxiliary contact of the intermediate relay; the power supply module is electrically connected with the auxiliary contact of the control coil of the intermediate relay through the connecting module and used for providing voltage for the control coil of the intermediate relay.
2. An intermediate relay quick verification apparatus according to claim 1, characterized in that: the connecting module comprises a plurality of terminal holes; the display module comprises a plurality of parallel light-emitting lamps, and each light-emitting lamp is connected with a pair of auxiliary contacts of the intermediate relay in series through a terminal hole; the power supply module comprises a variable direct current voltage source (1), and the variable direct current voltage source (1) is connected with an auxiliary contact of a control coil of the intermediate relay in series through a terminal hole.
3. An intermediate relay quick verification apparatus according to claim 2, characterized in that: the terminal holes in the connecting module comprise a first terminal hole group terminal hole 1A (16) and a terminal hole 1B (15); a second terminal hole group terminal hole 2A (14), a terminal hole 2B (13); a third terminal hole group terminal hole 3A (8) and a terminal hole 3B (9); a fourth terminal hole group terminal hole 4A (10), a terminal hole 4B (11); and fifth terminal hole group terminal hole a1(18), terminal hole a2 (17).
4. An intermediate relay quick verification apparatus according to claim 2, characterized in that: the power supply module further comprises a push-button switch (19), and the push-button switch (19) is connected with the variable direct current voltage source (1).
5. An intermediate relay quick verification device according to claim 4, characterized in that: the button switch (19) is an adjustable pressure type button switch (19).
6. An intermediate relay quick verification apparatus according to claim 2, characterized in that: the display module further comprises a plurality of groups of batteries (2), and each group of batteries (2) is connected to a connecting loop of each light-emitting lamp and a pair of auxiliary contacts of the corresponding intermediate relay.
7. An intermediate relay quick verification apparatus according to claim 1, characterized in that: the checking device further comprises a grounding module, the grounding module comprises a grounding wire (7) and a grounding hole (12), and the grounding wire (7) is inserted into the grounding hole (12).
8. An operation method of an intermediate relay quick verification apparatus according to claim 1, characterized in that: the method comprises the following steps:
(1) grounding the checking device through a grounding wire (7) in the grounding module;
(2) the checking device and the intermediate relay are connected through a lead;
(3) under the non-electrified state of the intermediate relay, the working state of the auxiliary contact is detected through the display of a luminescent lamp in the display module;
(4) adjusting a variable direct current voltage source (1) in a power supply module;
(5) under the power-on state of the intermediate relay, the working state of the auxiliary contact is displayed and detected through a luminescent lamp in the display module;
(6) and (3) closing a variable direct current voltage source (1) in the power supply module, disassembling a lead and a grounding wire (7) in the grounding module, and finishing the checking work of the intermediate relay.
9. The operation method of an intermediate relay quick verification apparatus according to claim 8, characterized in that: and (2) connecting each terminal hole in the checking device with the corresponding auxiliary contact pair of the intermediate relay through a lead.
10. The operation method of an intermediate relay quick verification apparatus according to claim 8, characterized in that: in the step (4), the output voltage of the variable direct current voltage source (1) in the power supply module is adjusted through a button switch (19) in the power supply module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011195758.7A CN112198427A (en) | 2020-10-30 | 2020-10-30 | Intermediate relay rapid calibration device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011195758.7A CN112198427A (en) | 2020-10-30 | 2020-10-30 | Intermediate relay rapid calibration device and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112198427A true CN112198427A (en) | 2021-01-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011195758.7A Pending CN112198427A (en) | 2020-10-30 | 2020-10-30 | Intermediate relay rapid calibration device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112198427A (en) |
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2020
- 2020-10-30 CN CN202011195758.7A patent/CN112198427A/en active Pending
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