CN105676122B - A kind of electromagnetic relay drop-off to pick-up radio test platform and test method - Google Patents
A kind of electromagnetic relay drop-off to pick-up radio test platform and test method Download PDFInfo
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- CN105676122B CN105676122B CN201610177842.3A CN201610177842A CN105676122B CN 105676122 B CN105676122 B CN 105676122B CN 201610177842 A CN201610177842 A CN 201610177842A CN 105676122 B CN105676122 B CN 105676122B
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- 238000012360 testing method Methods 0.000 title claims abstract description 32
- 238000010998 test method Methods 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 4
- 230000035945 sensitivity Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
Classifications
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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
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Abstract
The invention discloses a kind of electromagnetic relay drop-off to pick-up radio test platform and test methods, test platform of the present invention, including bottom plate, multiple groups relay wiring module is provided on bottom plate, first calibrating terminal, second calibrating terminal and power supply, every group relay Wiring module includes terminal plate, first P terminal, second P terminal, third P terminal, 4th P terminal and a light emitting diode, first coil pin slot is set on terminal plate, second coil pin slot, tertiary coil pin slot, 4th coil pin slot, first normally opened pin slot and the second normally opened pin slot.Voltage relay drop-off to pick-up radio test method of the present invention and voltage relay drop-off to pick-up radio test method are all made of aforementioned test platform.The invention enables the connection types of coil to be easily changed, to improve testing efficiency, and test speed is fast.
Description
Technical field
The present invention relates to a kind of electromagnetic relay drop-off to pick-up radio test platform and test methods.
Background technique
Electromagnetic relay drop-off to pick-up radio returns to numerical quantity and acts the ratio of numerical quantity.Such as the return system of electric current relay
Number is exactly drop-off to pick-up radio=return current/action current, and the drop-off to pick-up radio of voltage relay is exactly drop-off to pick-up radio=return voltage/dynamic
Make voltage, the value react relay sensitivity, the value is closer to 1, then relay is just sensitiveer, but sensitivity it is too high after
Electric appliance is many times not applicable, so relay protection has special requirement to the drop-off to pick-up radio of relay, it can neither be excessively high
It can not be too low.
Summary of the invention
The technical problem to be solved by the present invention is providing a kind of electromagnetic relay drop-off to pick-up radio test platform, and provide
A kind of electric current relay drop-off to pick-up radio test method also provides a kind of voltage relay drop-off to pick-up radio test method.
In order to solve the above-mentioned technical problem, the present invention includes bottom plate, and multiple groups relay wiring module, are provided on bottom plate
One calibrating terminal, the second calibrating terminal and power supply, every group relay Wiring module include terminal plate, the first relay wiring
Column, the second P terminal, third P terminal, the 4th P terminal and a light emitting diode, terminal plate
Upper setting first coil pin slot, the second coil pin slot, tertiary coil pin slot, the 4th coil pin slot,
One normally opened pin slot and the second normally opened pin slot, wherein four coil pin slots by conducting wire respectively with four relays
Binding post connects one by one, and the second normally opened pin slot is connected by a terminals of conducting wire and light emitting diode, and first is normally opened
Pin slot is connected with an electrode of power supply, and another of light emitting diode connects another electrode of end connection power supply.
In order to once test three group relays, the relay wiring module shares three groups.
Light emitting diode is burnt out in order to prevent, and each light emitting diode is in series with a resistance.
Electric current relay drop-off to pick-up radio test method of the present invention, using aforementioned electromagnetic drop-off to pick-up ratio test platform,
4th P terminal of the first group relay Wiring module is connected into the first calibrating terminal by conducting wire, by every group of relay
First P terminal of device Wiring module connects the 4th relay wiring of next group relay Wiring module by conducting wire
First P terminal of last group relay Wiring module is connected the second calibrating terminal by conducting wire by column, described
Test method includes the following steps:
(1) relay-protection tester of electric current relay and electric current relay to be tested is taken, electric current relay is two-wire
Two coils of electric current relay are respectively selected a pin respectively to connect a wiring pin by the electric current relay of circle；
(2) the first calibrating terminal and the second calibrating terminal are connected with relay-protection tester；
(3) each electric current relay to be tested is connect with a group relay Wiring module, the First Line of electric current relay
Two pins of circle are respectively inserted in first coil pin slot and the second coil pin slot, the second coil of electric current relay
Two pins be respectively inserted in tertiary coil pin slot and the 4th coil pin slot, and be connected with two lines of wiring pin
Circle pin is respectively inserted in second and tertiary coil pin slot, and two pins of the normal open switch of electric current relay are respectively inserted in
In first normally opened pin slot and the second normally opened pin slot；
(4) when the number of relay to be tested is less than the group number of relay wiring module, by unloaded relay wiring
The first P terminal of module and the 4th P terminal are shorted with conducting wire；
(5) wiring pin connecting with first coil is connect with third P terminal, by what is connect with the second coil
Wiring pin is connect with the second P terminal, and two coils of electric current relay is made to connect；
(6) start relay-protection tester, be gradually increased the output electric current of relay-protection tester, while observing luminous two
Pole pipe writes down the current value of relay-protection tester output at this time when light emitting diode is lighted, which is to correspond to
Action current value of the electric current relay under two coil series connections；Continue the output electric current of increase relay-protection tester
Value measures action current value of all electric current relays under two coil series connections until all light emitting diodes are lighted；
(7) the output electric current of relay-protection tester is slowly reduced, while observing light emitting diode, when light emitting diode is put out
When going out, the current value of relay-protection tester output at this time is write down, which is corresponding current relay in two lines
Enclose the return current value under series connection；The output current value for continuing reduction relay-protection tester, until all light-emitting diodes
Pipe extinguishes, and measures return current value of all electric current relays under two coil series connections, calculates drop-off to pick-up radio；
(8) wiring pin connecting with first coil is connect with the 4th P terminal, by what is connect with the second coil
Wiring pin is connect with the first P terminal, makes two coils from parallel connection of coils of electric current relay；
(9) step (6) and (7) are executed, measures action current of all electric current relays under two coils from parallel connection of coils states
Value and return current value calculate drop-off to pick-up radio.
Voltage relay drop-off to pick-up radio test method of the present invention is tested flat using electromagnetic relay drop-off to pick-up radio above-mentioned
Platform, by the first P terminal of all relay wiring modules by conducting wire connect the second calibrating terminal, by it is all after
4th P terminal of appliance wiring module connects the first calibrating terminal by conducting wire, and the test method includes as follows
Step:
(1) relay-protection tester of voltage relay and voltage relay to be tested is taken, voltage relay is two-wire
Two coils of voltage relay are respectively selected a pin respectively to connect a wiring pin by the voltage relay of circle；
(2) the first calibrating terminal and the second calibrating terminal are connected with relay-protection tester；
(3) each voltage relay to be tested is connect with a group relay Wiring module, the First Line of voltage relay
Two pins of circle are respectively inserted in first coil pin slot and the second coil pin slot, the second coil of voltage relay
Two pins be respectively inserted in tertiary coil pin slot and the 4th coil pin slot, and be connected with two lines of wiring pin
Circle pin is respectively inserted in second and tertiary coil pin slot, and two pins of the normal open switch of voltage relay are respectively inserted in
In first normally opened pin slot and the second normally opened pin slot；
(4) wiring pin connecting with first coil is connect with third P terminal, by what is connect with the second coil
Wiring pin is connect with the second P terminal, and two coils of voltage relay is made to connect；
(5) start relay-protection tester, be gradually increased the output voltage of relay-protection tester, while observing luminous two
Pole pipe writes down the voltage value of relay-protection tester output at this time when light emitting diode is lighted, which is to correspond to
Operation voltage value of the voltage relay under two coil series connections；Continue the output voltage of increase relay-protection tester
Value measures operation voltage value of all voltage relays under two coil series connections until all light emitting diodes are lighted；
(6) stream is pressed in the output for slowly reducing relay-protection tester, while observing light emitting diode, when light emitting diode is put out
When going out, the voltage value of relay-protection tester output at this time is write down, which is corresponding voltage relay in two lines
Enclose the return voltage value under series connection；The output voltage values for continuing reduction relay-protection tester, until all light-emitting diodes
Pipe extinguishes, and measures return pressure flow valuve of all voltage relays under two coil series connections, calculates drop-off to pick-up radio；
(7) wiring pin connecting with first coil is connect with the 4th P terminal, by what is connect with the second coil
Wiring pin is connect with the first P terminal, makes two coils from parallel connection of coils of voltage relay；
(8) step (5) and (6) are executed, measures operation voltage of all voltage relays under two coils from parallel connection of coils states
Value and return voltage value calculate drop-off to pick-up radio.
The beneficial effects of the present invention are: Testing Platform of the present invention has coil pin slot and normally opened pin slot, easily
It being connect in electromagnetic relay to be tested, each coil pin slot is corresponding with a P terminal on platform, so that
The connection type of coil is easily changed, to improve testing efficiency, and test speed is fast.Test method of the present invention estimates speed
Degree is fast, and test accuracy rate is high.
Detailed description of the invention
Fig. 1 is the structural schematic diagram under present invention test electric current relay state；
Fig. 2 is the circuit diagram under present invention test electric current relay state；
Fig. 3 is the structural schematic diagram under test voltage relay status of the present invention；
Fig. 4 is the circuit diagram under test voltage relay status of the present invention；
In figure: 1, bottom plate, 2, terminal plate, the 3, first normally opened pin slot, the 4, second normally opened pin slot, 5, light-emitting diodes
Pipe, 6, power supply, the 7, first calibrating terminal, the 8, second calibrating terminal, the 9, first P terminal, the 10, second relay
Binding post, 11, third P terminal, the 12, the 4th P terminal, 13, first coil pin slot, the 14, second line
Enclose pin slot, 15, tertiary coil pin slot, the 16, the 4th coil pin slot.R is resistance, and NO is normal open switch, and KA is
Relay coil, D are light emitting diode.
Specific embodiment
A kind of electromagnetic relay drop-off to pick-up radio test platform as shown in figures 1 and 3, including bottom plate 1 are arranged on bottom plate 1
There are three group relay Wiring modules, the first calibrating terminal 7, the second calibrating terminal 8 and power supply 6, every group relay wiring mould
Block include terminal plate 2, the first P terminal 9, the second P terminal 10, third P terminal the 11, the 4th after
First coil pin slot 13 is arranged on terminal plate 2 for appliance wiring column 12 and a light emitting diode 5, the second coil pin is inserted
Slot 14, tertiary coil pin slot 15, the 4th coil pin slot 16, the first normally opened pin slot 3 and the second normally opened pin are inserted
Slot 4, wherein four coil pin slots are connect with four P terminals one by one respectively by conducting wire, the second normally opened pin is inserted
Slot 4 is connect by conducting wire with a terminals of light emitting diode 5, and an electrode of the first normally opened pin slot 3 and power supply 6 connects
It connects, another of light emitting diode 5 connects another electrode of end connection power supply 6.Preferably each light emitting diode 6 is in series with one
A resistance R.
Using the electric current relay drop-off to pick-up radio test side of this specific embodiment electromagnetic relay drop-off to pick-up radio test platform
4th P terminal 12 of the first group relay Wiring module is passed through conducting wire connection first as depicted in figs. 1 and 2 by method
First P terminal 9 of every group relay Wiring module is connected next group relay by conducting wire and connect by calibrating terminal 7
4th P terminal 12 of wire module, by the first P terminal 9 of last group relay Wiring module by leading
Line connects the second calibrating terminal 8, and the test method includes the following steps:
(1) relay-protection tester of electric current relay and electric current relay to be tested, the relay of electric current relay are taken
Protecting tester is the prior art, it can the adjustable electric current of output size.Electric current relay is the electric current relay of twin coil, double
The electric current relay of coil is the prior art, and there are two coil, the connection types of two coils can be with by its relay coil KA
Change, or in parallel or series, relay coil KA can control the switch state of normal open switch NO after being powered, by electric current relay
Two coils respectively select a pin respectively to connect a wiring pin；
(2) the first calibrating terminal 7 and the second calibrating terminal 8 are connected with relay-protection tester；So that relay is protected
Shield tester can input the electric current of adjustable section to test platform.
(3) each electric current relay to be tested is connect with a group relay Wiring module, the First Line of electric current relay
Two pins of circle are respectively inserted in first coil pin slot 13 and the second coil pin slot 14, and the second of electric current relay
Two pins of coil are respectively inserted in tertiary coil pin slot 15 and the 4th coil pin slot 16, and are connected with wiring pin
Two coil pins be respectively inserted in the second coil pin slot 14 and tertiary coil pin slot 15, electric current relay it is normal
Two pins of switch are respectively inserted in the first normally opened pin slot 3 and the second normally opened pin slot 4；
(4) when the number of relay to be tested is less than the group number of relay wiring module, by unloaded relay wiring
Module the first P terminal 9 and the 4th P terminal 12 are shorted with conducting wire；
(5) wiring pin connecting with first coil is connect with third P terminal 11, will be connect with the second coil
Wiring pin connect with the second P terminal 10, so that two coils of electric current relay is connected；
(6) start relay-protection tester, be gradually increased the output electric current of relay-protection tester, while observing luminous two
Pole pipe 5 (with light emitting diode D in Fig. 2) writes down relay-protection tester output at this time when light emitting diode 5 is lighted
Current value, the current value are action current value of the corresponding current relay under two coil series connections；Continue increase after
The output current value of electric protection tester measures all electric current relays in two coils until all light emitting diodes 5 are lighted
Action current value under series connection；
(7) the output electric current of relay-protection tester is slowly reduced, while observing light emitting diode 5, when light emitting diode 5
When extinguishing, the current value of relay-protection tester output at this time is write down, which is corresponding current relay at two
Return current value under coil series connection；The output current value for continuing reduction relay-protection tester, until all luminous two
Pole pipe 5 is extinguished, and return current value of all electric current relays under two coil series connections is measured, and calculates drop-off to pick-up radio；
(8) wiring pin connecting with first coil is connect with the 4th P terminal 12, will be connect with the second coil
Wiring pin connect with the first P terminal 9, make two coils from parallel connection of coils of electric current relay；
(9) step (6) and (7) are executed, measures action current of all electric current relays under two coils from parallel connection of coils states
Value and return current value calculate drop-off to pick-up radio.
Using the voltage relay drop-off to pick-up radio test side of this specific embodiment electromagnetic relay drop-off to pick-up radio test platform
First P terminal 9 of all relay wiring modules is passed through the second test of conducting wire connection as shown in Figure 3 and Figure 4 by method
4th P terminal 12 of all relay wiring modules is connected the first calibrating terminal 7 by conducting wire by binding post 8,
The test method includes the following steps:
(1) relay-protection tester of voltage relay and voltage relay to be tested is taken；The relay of voltage relay
Protecting tester is the prior art, it can the adjustable voltage of output size.Voltage relay is the voltage relay of twin coil, double
The voltage relay of coil is the prior art, and there are two coil, the connection types of two coils can be with by its relay coil KA
Change, or in parallel or series, relay coil KA can control the switch state of normal open switch NO after being powered, by voltage relay
Two coils respectively select a pin respectively to connect a wiring pin；
(2) the first calibrating terminal 7 and the second calibrating terminal 8 are connected with relay-protection tester；So that relay is protected
Shield tester can input the voltage of adjustable section to test platform.
(3) each voltage relay to be tested is connect with a group relay Wiring module, the First Line of voltage relay
Two pins of circle are respectively inserted in first coil pin slot 13 and the second coil pin slot 14, and the second of voltage relay
Two pins of coil are respectively inserted in tertiary coil pin slot 15 and the 4th coil pin slot 16, and are connected with wiring pin
Two coil pins be respectively inserted in the second coil pin slot 14 and tertiary coil pin slot 15, voltage relay it is normal
Two pins of switch are respectively inserted in the first normally opened pin slot 3 and the second normally opened pin slot 4；
(4) wiring pin connecting with first coil is connect with third P terminal 11, will be connect with the second coil
Wiring pin connect with the second P terminal 10, make press current relay two coils series connection；
(5) start relay-protection tester, be gradually increased the output voltage of relay-protection tester, while observing luminous two
Pole pipe 5 (with light emitting diode D in Fig. 3) writes down relay-protection tester output at this time when light emitting diode 5 is lighted
Voltage value, the voltage value are operation voltage value of the corresponding voltage relay under two coil series connections；Continue increase after
The output voltage values of electric protection tester measure all voltage relays in two coils until all light emitting diodes 5 are lighted
Operation voltage value under series connection；
(6) stream is pressed in the output for slowly reducing relay-protection tester, while observing light emitting diode 5, when light emitting diode 5
When extinguishing, the voltage value of relay-protection tester output at this time is write down, which is corresponding voltage relay at two
Return voltage value under coil series connection；The output voltage values for continuing reduction relay-protection tester, until all luminous two
Pole pipe 5 is extinguished, and measures return pressure flow valuve of all voltage relays under two coil series connections, calculates drop-off to pick-up radio；
(7) wiring pin connecting with first coil is connect with the 4th P terminal 12, will be connect with the second coil
Wiring pin connect with the first P terminal 9, make two coils from parallel connection of coils of voltage relay；
(8) step (5) and (6) are executed, measures operation voltage of all voltage relays under two coils from parallel connection of coils states
Value and return voltage value calculate drop-off to pick-up radio.
Claims (2)
1. a kind of electric current relay drop-off to pick-up radio test method, it is characterised in that: flat using the test of electromagnetic relay drop-off to pick-up radio
Platform, the electromagnetic relay drop-off to pick-up radio test platform includes bottom plate, and multiple groups relay wiring module, are provided on bottom plate
One calibrating terminal, the second calibrating terminal and power supply, every group relay Wiring module include terminal plate, the first relay wiring
Column, the second P terminal, third P terminal, the 4th P terminal and a light emitting diode, terminal plate
Upper setting first coil pin slot, the second coil pin slot, tertiary coil pin slot, the 4th coil pin slot,
One normally opened pin slot and the second normally opened pin slot, wherein four coil pin slots by conducting wire respectively with four relays
Binding post connects one by one, and the second normally opened pin slot is connected by a terminals of conducting wire and light emitting diode, and first is normally opened
Pin slot is connected with an electrode of power supply, and another of light emitting diode connects another electrode of end connection power supply, by the
4th P terminal of one group relay Wiring module connects the first calibrating terminal by conducting wire, and every group relay is connect
First P terminal of wire module connects the 4th P terminal of next group relay Wiring module by conducting wire, will
First P terminal of last group relay Wiring module connects the second calibrating terminal, the test side by conducting wire
Method includes the following steps:
(1) relay-protection tester of electric current relay and electric current relay to be tested is taken, electric current relay is twin coil
Two coils of electric current relay are respectively selected a pin respectively to connect a wiring pin by electric current relay；
(2) the first calibrating terminal and the second calibrating terminal are connected with relay-protection tester；
(3) each electric current relay to be tested is connect with a group relay Wiring module, the first coil of electric current relay
Two pins are respectively inserted in first coil pin slot and the second coil pin slot, and the two of the second coil of electric current relay
A pin is respectively inserted in tertiary coil pin slot and the 4th coil pin slot, and two coils for being connected with wiring pin draw
Foot is respectively inserted in the second coil pin slot and tertiary coil pin slot, two pins of the normal open switch of electric current relay
It is respectively inserted in the first normally opened pin slot and the second normally opened pin slot；
(4) when the number of relay to be tested is less than the group number of relay wiring module, by unloaded relay wiring module
First P terminal and the 4th P terminal are shorted with conducting wire；
(5) wiring pin connecting with first coil is connect with third P terminal, the wiring that will be connect with the second coil
Needle is connect with the second P terminal, and two coils of electric current relay is made to connect；
(6) start relay-protection tester, be gradually increased the output electric current of relay-protection tester, while observing light-emitting diodes
Pipe writes down the current value of relay-protection tester output at this time when light emitting diode is lighted, which is corresponding electricity
Action current value of the current relay under two coil series connections；Continue the output current value of increase relay-protection tester,
Until all light emitting diodes are lighted, action current value of all electric current relays under two coil series connections is measured；
(7) the output electric current of relay-protection tester is slowly reduced, while observing light emitting diode, when light emitting diode extinguishes
When, the current value of relay-protection tester output at this time is write down, which is corresponding current relay in two coils
Return current value under series connection；The output current value for continuing reduction relay-protection tester, until all light emitting diodes
Extinguish, measure return current value of all electric current relays under two coil series connections, calculates drop-off to pick-up radio；
(8) wiring pin connecting with first coil is connect with the 4th P terminal, the wiring that will be connect with the second coil
Needle is connect with the first P terminal, makes two coils from parallel connection of coils of electric current relay；
(9) execute step (6) and (7), measure action current value of all electric current relays under two coils from parallel connection of coils states with
Return current value calculates drop-off to pick-up radio.
2. a kind of voltage relay drop-off to pick-up radio test method, it is characterised in that: flat using the test of electromagnetic relay drop-off to pick-up radio
Platform, the electromagnetic relay drop-off to pick-up radio test platform includes bottom plate, and multiple groups relay wiring module, are provided on bottom plate
One calibrating terminal, the second calibrating terminal and power supply, every group relay Wiring module include terminal plate, the first relay wiring
Column, the second P terminal, third P terminal, the 4th P terminal and a light emitting diode, terminal plate
Upper setting first coil pin slot, the second coil pin slot, tertiary coil pin slot, the 4th coil pin slot,
One normally opened pin slot and the second normally opened pin slot, wherein four coil pin slots by conducting wire respectively with four relays
Binding post connects one by one, and the second normally opened pin slot is connected by a terminals of conducting wire and light emitting diode, and first is normally opened
Pin slot is connected with an electrode of power supply, and another of light emitting diode connects another electrode of end connection power supply, by institute
There is the first P terminal of relay wiring module to connect the second calibrating terminal by conducting wire, by all relay wirings
4th P terminal of module connects the first calibrating terminal by conducting wire, and the test method includes the following steps:
(1) relay-protection tester of voltage relay and voltage relay to be tested is taken, voltage relay is twin coil
Two coils of voltage relay are respectively selected a pin respectively to connect a wiring pin by voltage relay；
(2) the first calibrating terminal and the second calibrating terminal are connected with relay-protection tester；
(3) each voltage relay to be tested is connect with a group relay Wiring module, the first coil of voltage relay
Two pins are respectively inserted in first coil pin slot and the second coil pin slot, and the two of the second coil of voltage relay
A pin is respectively inserted in tertiary coil pin slot and the 4th coil pin slot, and two coils for being connected with wiring pin draw
Foot is respectively inserted in the second coil pin slot and tertiary coil pin slot, two pins of the normal open switch of voltage relay
It is respectively inserted in the first normally opened pin slot and the second normally opened pin slot；
(4) wiring pin connecting with first coil is connect with third P terminal, the wiring that will be connect with the second coil
Needle is connect with the second P terminal, and two coils of voltage relay is made to connect；
(5) start relay-protection tester, be gradually increased the output voltage of relay-protection tester, while observing light-emitting diodes
Pipe writes down the voltage value of relay-protection tester output at this time when light emitting diode is lighted, which is corresponding electricity
Operation voltage value of the potential relay under two coil series connections；Continue the output voltage values of increase relay-protection tester,
Until all light emitting diodes are lighted, operation voltage value of all voltage relays under two coil series connections is measured；
(6) stream is pressed in the output for slowly reducing relay-protection tester, while observing light emitting diode, when light emitting diode extinguishes
When, the voltage value of relay-protection tester output at this time is write down, which is corresponding voltage relay in two coils
Return voltage value under series connection；The output voltage values for continuing reduction relay-protection tester, until all light emitting diodes
Extinguish, measures return pressure flow valuve of all voltage relays under two coil series connections, calculate drop-off to pick-up radio；
(7) wiring pin connecting with first coil is connect with the 4th P terminal, the wiring that will be connect with the second coil
Needle is connect with the first P terminal, makes two coils from parallel connection of coils of voltage relay；
(8) execute step (5) and (6), measure operation voltage value of all voltage relays under two coils from parallel connection of coils states with
Return voltage value calculates drop-off to pick-up radio.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610177842.3A CN105676122B (en) | 2016-03-25 | 2016-03-25 | A kind of electromagnetic relay drop-off to pick-up radio test platform and test method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610177842.3A CN105676122B (en) | 2016-03-25 | 2016-03-25 | A kind of electromagnetic relay drop-off to pick-up radio test platform and test method |
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| CN105676122A CN105676122A (en) | 2016-06-15 |
| CN105676122B true CN105676122B (en) | 2018-12-11 |
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| CN108872774B (en) * | 2018-04-26 | 2022-01-07 | 许继集团有限公司 | Converter detection method and device in protection device and aviation plug |
| CN109991538B (en) * | 2019-05-15 | 2021-08-03 | 格力电器（武汉）有限公司 | Liquid level switch detection device and method and air conditioner with device |
| US12019121B2 (en) | 2021-01-25 | 2024-06-25 | Tatsumi Ryoki Co., Ltd | Load testing device |
| CN114236371B (en) * | 2021-11-15 | 2022-05-24 | 广东电网有限责任公司东莞供电局 | Relay multistation testing arrangement |
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| CN105676122A (en) | 2016-06-15 |
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