CN213750222U - Intermediate relay rapid calibration device - Google Patents
Intermediate relay rapid calibration device Download PDFInfo
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- CN213750222U CN213750222U CN202022466693.7U CN202022466693U CN213750222U CN 213750222 U CN213750222 U CN 213750222U CN 202022466693 U CN202022466693 U CN 202022466693U CN 213750222 U CN213750222 U CN 213750222U
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- intermediate relay
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- grounding
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Abstract
The utility model belongs to the technical field of nuclear power station electrical maintenance, specifically discloses a quick calibration device and method for an intermediate relay, and the calibration device of the utility model comprises a connecting module, a display module and a power supply module, wherein 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 utility model discloses a calibration equipment simple structure, easily operation, convenient and fast. 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 utility model belongs to the technical field of nuclear power station electrical maintenance, concretely relates to quick calibration equipment of auxiliary 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.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a quick calibration equipment of auxiliary relay, device simple structure, easily operation, convenient and fast. 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.
Realize the utility model discloses the technical scheme of purpose:
a quick calibration device for an intermediate relay comprises a connecting module, a display module and a power supply module, wherein 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.
The utility model has the advantages of:
(1) the utility model discloses a quick calibration equipment of auxiliary relay can carry out the calibration to the action condition of a plurality of auxiliary contacts of intermediate relay simultaneously, has shortened the calibration time, has optimized the calibration step, has improved calibration efficiency;
(2) the utility model discloses a quick calibration equipment of auxiliary relay utilizes the luminescent lamp to show the break-make of auxiliary contact of auxiliary relay, and is more directly perceived;
(3) the utility model discloses a quick calibration equipment of auxiliary relay need not to use the universal meter to check, can prevent effectively that the universal meter from choosing mistake gear position etc. because of the mistake;
(4) the utility model discloses a quick calibration equipment of auxiliary relay is connected with auxiliary relay through the terminal hole, has avoided the condition of repeated wiring during traditional calibration, is convenient for the staff to use;
(5) the utility model discloses a quick calibration equipment of auxiliary relay simple structure, easily operation, portable takes the field usage.
Drawings
Fig. 1 is a schematic circuit diagram of an intermediate relay quick calibration apparatus provided by the present invention;
fig. 2 is an appearance schematic diagram of the quick intermediate relay calibration device provided by the utility model.
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 utility model provides a pair of quick calibration equipment of auxiliary relay, this calibration equipment include connection module, display module, power module and ground module, and display module passes through the connection module electricity with auxiliary contact of auxiliary relay and is connected, and power module passes through the connection module electricity with auxiliary contact of auxiliary relay's control coil and is connected.
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 utility model provides a pair of quick calibration equipment of auxiliary relay's concrete theory of operation as follows:
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 fig. 2, the utility model provides an operation method of intermediate relay quick calibration device, the method includes the following steps:
(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 above examples, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art. The present invention can adopt the prior art for the content which is not described in detail in the present invention.
Claims (6)
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 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.
2. An intermediate relay quick verification apparatus according to claim 1, 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).
3. An intermediate relay quick verification apparatus according to claim 1, 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).
4. An intermediate relay quick verification apparatus according to claim 3, characterized in that: the button switch (19) is an adjustable pressure type button switch (19).
5. An intermediate relay quick verification apparatus according to claim 1, 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.
6. 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).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022466693.7U CN213750222U (en) | 2020-10-30 | 2020-10-30 | Intermediate relay rapid calibration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022466693.7U CN213750222U (en) | 2020-10-30 | 2020-10-30 | Intermediate relay rapid calibration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213750222U true CN213750222U (en) | 2021-07-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022466693.7U Active CN213750222U (en) | 2020-10-30 | 2020-10-30 | Intermediate relay rapid calibration device |
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| Country | Link |
|---|---|
| CN (1) | CN213750222U (en) |
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- 2020-10-30 CN CN202022466693.7U patent/CN213750222U/en active Active
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