CN208383986U - High-voltage switch gear coil resistance test device - Google Patents
High-voltage switch gear coil resistance test device Download PDFInfo
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- CN208383986U CN208383986U CN201821036653.5U CN201821036653U CN208383986U CN 208383986 U CN208383986 U CN 208383986U CN 201821036653 U CN201821036653 U CN 201821036653U CN 208383986 U CN208383986 U CN 208383986U
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Abstract
The utility model discloses a kind of high-voltage switch gear coil resistance test devices, including high-voltage switch gear, the first hardware circuit in high-voltage switch gear, the testing cassete that can be connect with high-voltage switch gear, test panel on testing cassete, direct current output port on test panel, ground terminal on test panel, power module on test panel, display screen in the middle part of test panel, opening button on test panel, switch knob on test panel, adjusting pressuring knob on test panel and the second hardware circuit inside testing cassete；Direct current output port, ground terminal, power module, display screen, opening button, switch knob and adjusting pressuring knob are electrically connected with the second hardware circuit respectively.The utility model have the characteristics that safely and effectively, to reduce equipment poor contact and damage, test efficient and convenient.
Description
Technical field
The utility model relates to high-voltage switch gear the field of test technology, more particularly, to one kind there is safe and effective, reduction to set
Standby poor contact and damage, the high-voltage switch gear coil resistance test device for testing efficient and convenient feature.
Background technique
High-voltage switch gear is a kind of for cut-offfing and closing the electric appliance of galvanic circle, and manipulating the control element in circuit is point
Switching electromagnet is called divide-shut brake coil, guarantees that the correctness of coil resistance value and stability are to ensure that height presses off in use
Close the necessary condition of safe and stable operation.According to GB 50150-2016 " electric device installing engineering electrical test commissioning test mark
It is quasi- ", DLT596 " power equipment preventive trial regulation ", its coil should be into commissioning test and preventive trial for high-voltage switch gear
The test of row D.C. resistance.DC resistance should meet manufactory provide (producer generally require directly hinder with factory-said value deviation≤
10%).
The prior art need to apply a voltage in wire loop when carrying out the measurement of high-voltage switch gear divide-shut brake coil resistance,
Then the electric current for measuring the voltage at divider resistance both ends and flowing through carries out calculating judgement.The straight resistance value of coil is generally higher than 10 Ω, and one
As with multimeter measure its resistance value, but there are the elements such as rectifier in most of divide-shut brake wire loops, if at this time in aviation
It is measured on plug, since multimeter output voltage is low, electronic component is not turned on, display open circuit.Therefore it at present cannot be in aviation
The D.C. resistance of divide-shut brake coil is directly measured on plug, finds division after generally opening the cover board of switch in real work
The leading-out terminal of brake cable circle, with multimeter measuring coil D.C. resistance.But the screw-socket of part terminal block and terminal block is inwardly, nothing
Method directly measures, and needs for terminal block extraction to be just capable of measuring；Partial switch coil is first connected in terminal block, then connects electronics member again
Part, therefore need for the wiring disconnection of coil to be just capable of measuring when measurement.Such method may result in connector pine during tearing head open
It is dynamic, security risk is left, and remove connector needs and take some time.
Utility model content
The purpose of the invention of the present invention is to overcome in the prior art to test electricity directly on aviation plug
It is time-consuming in resistance value and test process, cause damage to leave the deficiency of security risk equipment, provide it is a kind of have safely and effectively,
Reduce equipment poor contact and damage, the high-voltage switch gear coil resistance test device for testing efficient and convenient feature.
To achieve the goals above, the utility model uses following technical scheme:
A kind of high-voltage switch gear coil resistance test device, including high-voltage switch gear, the first hardware electricity in high-voltage switch gear
Road, the testing cassete that can be connect with high-voltage switch gear, the test panel on testing cassete, the DC output end on test panel
Mouthful, the ground terminal on test panel, the power module on test panel, the display screen in the middle part of test panel,
Opening button on test panel, the switch knob on test panel, adjusting pressuring knob on test panel and
The second hardware circuit inside testing cassete；Direct current output port, ground terminal, power module, display screen, opening button, conjunction
Lock button and adjusting pressuring knob are electrically connected with the second hardware circuit respectively.
The utility model is a kind of high-voltage switch gear coil resistance test device, and direct current output port is used for high-voltage switch gear
Aviation plug is attached；DC resistance when opening button and switch knob are respectively used to control test separating brake or close a floodgate
With DC voltage value；For adjusting pressuring knob for controlling voltage, voltage is adjustable in 0-220V；Display screen is used to show the resistance of test
Value and voltage value.The utility model can directly connect with the aviation plug of high-voltage switch gear and be tested, and not need to disconnect high-voltage line
The connection of circle protects equipment not damaged.
Preferably, the second hardware circuit includes sample resistance R1, sample resistance R2, switching switch, current-limiting circuit, separating brake
Relay and closing relay；One end of sample resistance R1 is electrically connected to a power source, and the other end of sample resistance R1 and switching switch
The electrical connection of a switch terminal, one end of sample resistance R2 is electrically connected to a power source, the sample resistance R2 other end and switching switch
The electrical connection of another switch terminal, the fixing end for switching switch are electrically connected with one end of current-limiting circuit, the other end point of current-limiting circuit
It is not electrically connected with one end of separating brake relay and closing relay, the other end and the direct current output port of separating brake relay are electrically connected
It connects, the other end of closing relay is electrically connected with direct current output port.Sample resistance R1 and sample resistance R2 can reduce because
Rectifier cell internal resistance bring influences；Electric current leads to greatly very much coil motion when current-limiting circuit is for preventing measurement, makes test data
By larger interference.
Preferably, the first hardware circuit includes opening coil, closing coil, the first rectification circuit, the second rectification circuit
And aviation plug；The upper N-MOS pipe of opening coil is electrically connected with the first MOS module, the N-MOS pipe and second on closing coil
The electrical connection of MOS module, opening coil are electrically connected with the first rectification circuit, and closing coil is electrically connected with the second rectification circuit, separating brake
Coil is electrically connected with aviation plug respectively with closing coil.
Preferably, direct current output port is electrically connected with aviation plug.
Preferably, direct current output port includes 3 terminals, 3 terminals are respectively red combined floodgate port, green separating brake end
Mouth and public port；Aviation plug includes combined floodgate terminal and separating brake terminal, red combined floodgate port, public port with combined floodgate terminal
Electrical connection, green separating brake port, public port are electrically connected with separating brake terminal.
Preferably, power module includes power input interface and power knob.Power input interface is for inputting 220V electricity
Pressure.
Therefore, the utility model has the following beneficial effects: the utility model be not required to during the test remove height press off
The associated connections of the coil of pass, reduce because take out stitches and caused by poor contact and joint failure, preferably ensure that equipment
Safety；Since the aviation plug of the present apparatus and high-voltage switch gear is directly connected to, the time of measurement D.C. resistance substantially reduces,
Improve test efficiency, thus the utility model have safely and effectively, to reduce equipment poor contact and damage, test efficient and convenient
The characteristics of.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the utility model；
Fig. 2 is a kind of hardware circuit connection schematic diagram of the utility model.
In figure: the first hardware circuit 1, testing cassete 2, test panel 3, direct current output port 4, ground terminal 5, power module 6,
Display screen 7, opening button 8, switch knob 9, adjusting pressuring knob 10, the second hardware circuit 11, current-limiting circuit 12, separating brake relay
13, closing relay 14, the first rectification circuit 15, the second rectification circuit 16, terminal 17, power input interface 18, power knob
19。
Specific embodiment
The utility model is further described with reference to the accompanying drawings and detailed description.
Embodiment as shown in Figure 1 is a kind of high-voltage switch gear coil resistance test device, including high-voltage switch gear, is set to high pressure
The first hardware circuit 1 in switch, the testing cassete 2 that can be connect with high-voltage switch gear, the test panel 3 on testing cassete are set to
Direct current output port 4 on test panel, the ground terminal 5 on test panel, the power module 6 on test panel,
Display screen 7 in the middle part of test panel, the opening button 8 on test panel, the switch knob on test panel
9, the adjusting pressuring knob 10 on test panel and the second hardware circuit 11 inside testing cassete；Direct current output port connects
Ground terminal, power module, display screen, opening button, switch knob and adjusting pressuring knob are electrically connected with the second hardware circuit respectively.Power supply
Block includes power input interface 18 and power knob 19.Direct current output port is used to be connected with the aviation plug of high-voltage switch gear
It connects；DC resistance and DC voltage value when opening button and switch knob are respectively used to control test separating brake or close a floodgate；
For adjusting pressuring knob for controlling voltage, voltage is adjustable in 0-220V；Display screen is used to show the resistance value and voltage value of test.
As shown in Fig. 2, the second hardware circuit includes sample resistance R1, sample resistance R2, switching is switched, current-limiting circuit 12,
Separating brake relay 13 and closing relay 14；One end of sample resistance R1 is electrically connected to a power source, the other end of sample resistance R1 with
The switch terminal electrical connection of switching switch, one end of sample resistance R2 is electrically connected to a power source, the sample resistance R2 other end with cut
Another switch terminal electrical connection of switch is changed, the fixing end for switching switch is electrically connected with one end of current-limiting circuit, current-limiting circuit
The other end is electrically connected with one end of separating brake relay and closing relay respectively, the other end and DC output end of separating brake relay
Mouth electrical connection, the other end of closing relay are electrically connected with direct current output port.First hardware circuit includes opening coil, closes a floodgate
Coil, the first rectification circuit 15, the second rectification circuit 16 and aviation plug；The upper N-MOS pipe and the first MOS mould of opening coil
Block is electrically connected, and the N-MOS pipe on closing coil is electrically connected with the 2nd MOS module, and opening coil is electrically connected with the first rectification circuit,
Closing coil is electrically connected with the second rectification circuit, and opening coil is electrically connected with aviation plug respectively with closing coil.Direct current output
Port is electrically connected with aviation plug.Direct current output port includes that 3 terminals, 17,3 terminals are respectively red combined floodgate port, green
Separating brake port and public port；Aviation plug includes combined floodgate terminal and separating brake terminal, red combined floodgate port, public port with conjunction
The electrical connection of lock terminal, green separating brake port, public port are electrically connected with separating brake terminal.Sample resistance R1 and sample resistance R2 energy
It is enough to reduce because rectifier cell internal resistance bring influences；Electric current leads to greatly very much coil motion when current-limiting circuit is for preventing measurement,
Make test data by larger interference.The resistance value of the measurable high-voltage switch gear coil of this test device 20 Ω -300 Ω it
Between, test device is easy to carry, and measurement is easy, it is not necessary to the associated connections of high-voltage switch gear coil is removed, caused by reducing because taking out stitches
Poor contact and joint failure ensure that the safety of equipment.
The course of work of the utility model is as follows:
When combined floodgate test, the red combined floodgate port of high-voltage switch gear coil resistance test device is pressed off with public port and height
The combined floodgate terminal wire of pass connects, and opens the power supply of test device, presses the switch knob in test device, on a display screen directly
Connect the DC resistance and DC voltage value for reading high-voltage switch gear coil when closing a floodgate.
When separating brake is tested, the green separating brake port of high-voltage switch gear coil resistance test device is pressed off with public port and height
The separating brake terminal wire of pass connects, and opens the power supply of test device, presses the opening button in test device, on a display screen directly
Connect the DC resistance and DC voltage value of high-voltage switch gear coil when reading separating brake.
It should be understood that the present embodiment is merely to illustrate the utility model rather than limitation the scope of the utility model.Furthermore
It should be understood that after reading the content taught by the present invention, those skilled in the art can make the utility model various
Change or modification, these equivalent forms also fall within the scope of the appended claims of the present application.
Claims (6)
1. a kind of high-voltage switch gear coil resistance test device, characterized in that including high-voltage switch gear, in high-voltage switch gear first
Hardware circuit (1), the testing cassete (2) that can be connect with high-voltage switch gear, the test panel (3) on testing cassete are set to test surfaces
Direct current output port (4) on plate, the ground terminal (5) on test panel, the power module (6) on test panel,
Display screen (7) in the middle part of test panel, the opening button (8) on test panel, the combined floodgate on test panel
Button (9), the adjusting pressuring knob (10) on test panel and the second hardware circuit (11) inside testing cassete；Direct current is defeated
Exit port, ground terminal, power module, display screen, opening button, switch knob and adjusting pressuring knob are respectively with the second hardware circuit electricity
Connection.
2. high-voltage switch gear coil resistance test device according to claim 1, characterized in that the second hardware circuit includes taking
Sample resistance R1, sample resistance R2, switching switch, current-limiting circuit (12), separating brake relay (13) and closing relay (14)；Sampling
One end of resistance R1 is electrically connected to a power source, and the other end of sample resistance R1 is electrically connected with a switch terminal of switching switch, is sampled
One end of resistance R2 is electrically connected to a power source, and the sample resistance R2 other end is electrically connected with another switch terminal of switching switch, is switched
The fixing end of switch is electrically connected with one end of current-limiting circuit, the other end of current-limiting circuit respectively with separating brake relay and combined floodgate relay
One end of device is electrically connected, and the other end of separating brake relay be electrically connected with direct current output port, the other end of closing relay with directly
Flow output port electrical connection.
3. high-voltage switch gear coil resistance test device according to claim 2, characterized in that the first hardware circuit includes point
Brake cable circle, closing coil, the first rectification circuit (15), the second rectification circuit (16) and aviation plug；The upper N- of opening coil
Metal-oxide-semiconductor is electrically connected with the first MOS module, and N-MOS on closing coil pipe is electrically connected with the 2nd MOS module, opening coil and the
The electrical connection of one rectification circuit, closing coil are electrically connected with the second rectification circuit, and opening coil and closing coil are inserted with aviation respectively
Head electrical connection.
4. high-voltage switch gear coil resistance test device according to claim 3, characterized in that direct current output port and aviation
Plug electrical connection.
5. high-voltage switch gear coil resistance test device according to claim 4, characterized in that direct current output port includes 3
A terminal (17), 3 terminals are respectively red combined floodgate port, green separating brake port and public port；Aviation plug includes closing a floodgate
Terminal and separating brake terminal, red combined floodgate port, public port are electrically connected with combined floodgate terminal, green separating brake port, public port
It is electrically connected with separating brake terminal.
6. high-voltage switch gear coil resistance test device described according to claim 1 or 2 or 3 or 4 or 5, characterized in that power module
Including power input interface (18) and power knob (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821036653.5U CN208383986U (en) | 2018-07-02 | 2018-07-02 | High-voltage switch gear coil resistance test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821036653.5U CN208383986U (en) | 2018-07-02 | 2018-07-02 | High-voltage switch gear coil resistance test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208383986U true CN208383986U (en) | 2019-01-15 |
Family
ID=64965467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821036653.5U Active CN208383986U (en) | 2018-07-02 | 2018-07-02 | High-voltage switch gear coil resistance test device |
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| Country | Link |
|---|---|
| CN (1) | CN208383986U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111638484A (en) * | 2020-06-11 | 2020-09-08 | 格力电器（郑州）有限公司 | Coil material detection device and detection method |
| CN111751639A (en) * | 2020-05-14 | 2020-10-09 | 广西电网有限责任公司电力科学研究院 | Secondary circuit measuring device for high-voltage circuit breaker |
| CN111751621A (en) * | 2020-05-14 | 2020-10-09 | 广西电网有限责任公司电力科学研究院 | Detection method for secondary circuit of high-voltage circuit breaker |
-
2018
- 2018-07-02 CN CN201821036653.5U patent/CN208383986U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111751639A (en) * | 2020-05-14 | 2020-10-09 | 广西电网有限责任公司电力科学研究院 | Secondary circuit measuring device for high-voltage circuit breaker |
| CN111751621A (en) * | 2020-05-14 | 2020-10-09 | 广西电网有限责任公司电力科学研究院 | Detection method for secondary circuit of high-voltage circuit breaker |
| CN111638484A (en) * | 2020-06-11 | 2020-09-08 | 格力电器（郑州）有限公司 | Coil material detection device and detection method |
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