CN212723222U - Intelligent relay tester - Google Patents
Intelligent relay tester Download PDFInfo
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- CN212723222U CN212723222U CN202020920240.4U CN202020920240U CN212723222U CN 212723222 U CN212723222 U CN 212723222U CN 202020920240 U CN202020920240 U CN 202020920240U CN 212723222 U CN212723222 U CN 212723222U
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- relay
- detection module
- voltage
- main control
- resistance detection
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Abstract
The utility model discloses an intelligence relay inspection appearance, including polytypic relay base, embedded main control board, touch screen, programmable power supply, reference source, digital bridge, adjustment plastic module, high accuracy voltage, current detection module, insulation resistance detection module, withstand voltage and contact resistance detection module and high-speed programmable switch array, polytypic relay base passes through high-speed programmable switch array and is connected with embedded main control board, touch screen, programmable power supply, reference source, digital bridge, adjustment plastic module, high accuracy voltage, current detection module, insulation resistance detection module, withstand voltage and contact resistance detection module electricity respectively, touch screen and embedded main control board electric signal connection. Compared with the prior art, the utility model discloses except that basic function test can also carry out withstand voltage, contact resistance, insulation resistance test. The closed box body is small in size, light in weight, dustproof, waterproof, strong in operability, long in service life, convenient to maintain and capable of achieving reliable wireless data transmission.
Description
Technical Field
The utility model relates to a relay tester especially relates to an intelligence relay tester.
Background
The production systems of computer monitoring, relay protection, auxiliary control, speed regulation, excitation and the like of a power station, a power grid and the like are generally provided with relays with different voltage levels, different pin types and different brands, the relay checking work is a standard project for the maintenance of each system, the traditional manual checking method is still adopted at present, the wiring is complex, the efficiency is low, and meanwhile, the work is carried out by great manpower and material resources due to the large number and different types of the relays.
The relay calibration console in the existing market is only provided with a part of universal bases, and the calibration is still required to be connected with an external calibration instrument. Part of automatic check meters can only complete the basic functions of the relay, such as resistance, action voltage and return voltage measurement, and cannot test voltage resistance, contact resistance and insulation resistance.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a solve above-mentioned problem, realize multiple model relay automatic check function, promote the intelligent level of relay check-up, alleviate the intelligent relay tester of maintainer operation intensity.
In order to realize the purpose, the utility model discloses a technical scheme is: an intelligent relay tester comprises a multi-model relay base, an embedded main control board, a touch screen, a program-controlled power supply, a reference source, a digital bridge, an adjusting and shaping module, a high-precision voltage and current detection module, an insulation resistance detection module, a voltage-resistant and contact resistance detection module and a high-speed program-controlled switch array,
the multi-model relay base is respectively and electrically connected with the embedded main control panel, the touch screen, the program-controlled power supply, the reference source, the digital bridge, the adjusting and shaping module, the high-precision voltage and current detection module, the insulation resistance detection module and the voltage-resistant and contact resistance detection module through the high-speed program-controlled switch array,
the program control power supply is respectively and electrically connected with the embedded main control board, the reference source, the digital bridge, the adjusting and shaping module, the high-precision voltage and current detection module, the insulation resistance detection module, the voltage-resistant and contact resistance detection module and the high-speed program control switch array,
the touch screen is electrically connected with the embedded main control panel through signals.
Preferably, the embedded main control panel is further provided with a USB interface, a WiFi interface and a communication expansion interface.
Preferably, the multi-model relay bases are divided into three groups according to AC220V, DC24V and DC220V, and each group comprises three relay bases.
Preferably, each group of three relay bases is a square 8-pin base, a round 11-pin base and a square 14-pin base.
Preferably, the first relay base of each group is normally opened and normally closed, the coils corresponding to the three relay bases of the same group are connected in parallel and are connected through a signal relay, the two normally opened ends of the coil at the common end of the signal relay are connected with the check end of the direct-current resistor, and the two normally closed ends are used as the power supply voltage access end of the coil and are output as the coil voltage after voltage division.
Preferably, the normally open pin of the relay base is connected with the ground common end and is respectively connected with a pull-up resistor to be used as a contact feedback signal.
Compared with the prior art, the utility model has the advantages of:
1. besides basic function test, the test of voltage resistance, contact resistance and insulation resistance can be carried out.
2. The closed box body has the advantages of small volume, light weight, dust and water prevention, strong operability, long service life and convenience in maintenance.
3. The data can be reliably transmitted wirelessly.
Drawings
FIG. 1 is a schematic circuit diagram of the present invention;
fig. 2 is a circuit wiring diagram of the relay base of the present invention.
Detailed Description
The present invention will be further explained below.
Example 1: the utility model provides an intelligence relay inspection appearance, refers to fig. 1, fig. 2, including polytypic relay base, embedded main control board, touch screen, programmable power supply, reference source, digital bridge, adjustment plastic module, high accuracy voltage, current detection module, insulation resistance detection module, withstand voltage and contact resistance detection module and high-speed programmable switch array, the utility model discloses an integrated 32 embedded main control boards, programmable power supply, reference source, digital bridge, adjustment plastic module, high accuracy voltage, current detection module, insulation resistance detection module, withstand voltage and contact resistance detection module, high-speed programmable switch array and relevant interface in an organic whole adopt the encapsulation of closed box. The reference source is the basis of all measurement circuits and analog-to-digital conversion and provides precise reference voltage; the shaping module is the basis for signal processing.
Reference source: the method mainly provides precise reference voltage for a measuring circuit and an ADC (analog to digital converter), and adopts REF02EZ of TI company;
digital bridge: the device is used for precisely measuring the resistance of the coil;
a shaping module: shaping feedback signals of each contact to remove interference;
high accuracy voltage detection module: measuring the voltage across the coil using ADI AD92659 BCPZ-125;
high accuracy current detection module: measuring a value of current flowing through the contact;
insulation resistance detection module: the device is used for measuring the insulation resistance between the relay coil and the contact and between the contact and the contact;
a pressure-resistant module: the device is used for measuring the withstand voltage between the relay coil and the contact and between the contact and the contact;
contact resistance detection module: the device is used for measuring the on-resistance of the normally open contact and the normally closed contact; the resistance detection module is used for detecting the resistance values of the coil-contact of the relay, different groups and the same group.
The multi-model relay base is respectively electrically connected with the embedded main control board, the touch screen, the program-controlled power supply, the reference source, the digital bridge, the adjusting and shaping module, the high-precision voltage and current detection module, the insulation resistance detection module, the voltage resistance and contact resistance detection module through the high-speed program-controlled switch array, the program-controlled power supply is respectively electrically connected with the embedded main control board, the reference source, the digital bridge, the adjusting and shaping module, the high-precision voltage and current detection module, the insulation resistance detection module, the voltage resistance and contact resistance detection module and the high-speed program-controlled switch array, and the touch screen is in electric signal connection with the embedded main control board. And the operation switching of each module is carried out through the high-speed program control switch array.
Measurement of actuation and release voltages: a reference source, a shaping module and a high-precision voltage module are required to operate together;
measurement of coil resistance and power: the reference source, the shaping module and the digital bridge are required to work together.
And (3) testing the action efficiency and the contact synchronization: the reference source, the shaping module and the high-precision voltage module are required to work together.
And (3) contact resistance measurement: a reference source, a shaping module, a high precision current and voltage module are required to operate together.
And (3) pressure resistance measurement: a reference source, a shaping module, a high precision current and voltage module are required to operate together.
And (3) measuring insulation resistance: a reference source, a shaping module, a high precision current and voltage module are required to operate together.
The main panel of the calibrator consists of a relay base, a display touch screen, a power switch, a socket and a USB port. The relay base is divided into three rows of 24VDC, 220VDC and 220VAC, each row is provided with three relay bases to support relays of different models, only 1 relay can be inserted for verification each time, the number of the relay base to be verified is selected through the display touch screen, the verification operation of the relay is automatically completed by clicking a 'start' key, the embedded main control board is further provided with a USB interface, a WiFi interface and a communication expansion interface, the USB interface supports the insertion of a mouse and a USB flash disk, and data can be transmitted reliably and wirelessly
The multi-model relay bases are divided into three groups according to AC220V, DC24V and DC220V, and each group comprises three relay bases. Each group of three relay bases are respectively a square 8-pin base, a round 11-pin base and a square 14-pin base so as to meet the requirements of relays of different models, and a specific circuit diagram of the relay base is shown in figure 2,
taking the AC220V relay verification as an example, the group of relays has 3 bases, namely a square 8-pin, a round 11-pin and a square 14-pin, the relay switches are divided into at most 4 groups (each group is normally open and normally closed), namely K00, K01, K02 and K03, corresponding coils of the three bases are connected in parallel and are connected through a signal relay HH62P, the common end of the signal relay HH62P is connected with a coil, the two normally open ends are connected with a DC resistance verification end, and the two normally closed ends are used as coil power supply voltage access ends and are output as coil voltage after voltage division;
when coil resistance verification is carried out, the signal relay HH62P is pulled in, and after a current source is connected to a relay coil, coil resistance verification is carried out.
The normally open pins of all the seats are grounded, and the common ends K00/K01/K02/K03 are connected with a pull-up resistor respectively and then are used as contact feedback signals.
When pull-in voltage is verified, the signal relay HH62P is disconnected, a normally closed point is connected, a program control source outputs a signal to be connected with a rising voltage signal to be supplied to a relay coil, meanwhile, a contact feedback signal is verified, when a contact signal exists, the coil is interrupted to supply power and continuously rises, and the voltage at the moment is the pull-in voltage of the relay to be tested.
After the pull-in voltage is verified, the programmable controller automatically adjusts the power supply to enable the voltage to slowly drop, when any group of contact feedback signals disappears, the relay is indicated to be converted into a release state (initial state), and the voltage is the release voltage of the relay.
When the closing action efficiency and the contact synchronization verification of the contacts are carried out, rated voltage is directly applied to the relay, meanwhile, a timer is started, the occurrence time of K00-K03 signals is respectively recorded, and the time difference of each contact is calculated. And then, the rated voltage of the relay is cut off, the contact release time of the relay is recorded, and the time difference of each contact is calculated. The other groups of relays work on the same principle as the group AC220V, and are not explained here.
The intelligent relay tester provided by the utility model is introduced in detail, and a specific example is applied to explain the principle and the implementation mode of the utility model, and the description of the above embodiment is only used for helping to understand the method and the core idea of the utility model; while the invention has been described in terms of specific embodiments and applications, it will be apparent to those skilled in the art that numerous variations and modifications can be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (6)
1. The utility model provides an intelligence relay check gauge which characterized in that: comprises a multi-model relay base, an embedded main control panel, a touch screen, a program control power supply, a reference source, a digital bridge, an adjusting and shaping module, a high-precision voltage and current detection module, an insulation resistance detection module, a voltage-resistant and contact resistance detection module and a high-speed program control switch array,
the multi-model relay base is respectively and electrically connected with the embedded main control panel, the touch screen, the program-controlled power supply, the reference source, the digital bridge, the adjusting and shaping module, the high-precision voltage and current detection module, the insulation resistance detection module and the voltage-resistant and contact resistance detection module through the high-speed program-controlled switch array,
the program control power supply is respectively and electrically connected with the embedded main control board, the reference source, the digital bridge, the adjusting and shaping module, the high-precision voltage and current detection module, the insulation resistance detection module, the voltage-resistant and contact resistance detection module and the high-speed program control switch array,
the touch screen is electrically connected with the embedded main control panel through signals.
2. The intelligent relay tester of claim 1, wherein: the embedded main control panel is also provided with a USB interface, a WiFi interface and a communication expansion interface.
3. The intelligent relay tester of claim 1, wherein: the multi-model relay bases are divided into three groups according to AC220V, DC24V and DC220V, and each group comprises three relay bases.
4. An intelligent relay tester according to claim 3, wherein: each group of three relay bases is a square 8-pin base, a round 11-pin base and a square 14-pin base.
5. An intelligent relay tester according to claim 3, wherein: every group relay base one normally opens a normal close, and the coil that corresponds with a set of three relay base is in the same place in parallel, connects through a signal relay, and two normally open of signal relay common termination coil connect direct current resistance check-up end, and two normally closed ends regard as coil supply voltage incoming end to after the partial pressure as coil voltage output.
6. The intelligent relay tester of claim 5, wherein: and the normally open pin of the relay base is connected with the ground common end and is respectively connected with a pull-up resistor to be used as a contact feedback signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020920240.4U CN212723222U (en) | 2020-05-27 | 2020-05-27 | Intelligent relay tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020920240.4U CN212723222U (en) | 2020-05-27 | 2020-05-27 | Intelligent relay tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212723222U true CN212723222U (en) | 2021-03-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020920240.4U Active CN212723222U (en) | 2020-05-27 | 2020-05-27 | Intelligent relay tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212723222U (en) |
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2020
- 2020-05-27 CN CN202020920240.4U patent/CN212723222U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 625400 No.1 Shuidian Road, Diaojiao village, wanggangping Yi Tibetan Township, Shimian County, Ya'an City, Sichuan Province Patentee after: Guoneng Dadu River Dagangshan Power Generation Co.,Ltd. Address before: 625400 No.1 Shuidian Road, Diaojiao village, Diaojiao Yi Tibetan Township, Shimian County, Ya'an City, Sichuan Province Patentee before: GUODIAN DADU RIVER DAGANGSHAN HYDROPOWER DEVELOPMENT Co.,Ltd. |
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| CP03 | Change of name, title or address |