CN208589773U - Monophase machine performance test protective device - Google Patents
Monophase machine performance test protective device Download PDFInfo
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- CN208589773U CN208589773U CN201821443666.4U CN201821443666U CN208589773U CN 208589773 U CN208589773 U CN 208589773U CN 201821443666 U CN201821443666 U CN 201821443666U CN 208589773 U CN208589773 U CN 208589773U
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- bidirectional thyristor
- onunit
- unit
- isolating transformer
- connect
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- 230000001681 protective effect Effects 0.000 title claims abstract description 15
- 238000011056 performance test Methods 0.000 title claims abstract description 14
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 55
- 238000012360 testing method Methods 0.000 claims abstract description 54
- 230000033228 biological regulation Effects 0.000 claims abstract description 13
- 239000003990 capacitor Substances 0.000 claims description 8
- 238000002955 isolation Methods 0.000 claims description 3
- 230000006698 induction Effects 0.000 description 5
- 230000005611 electricity Effects 0.000 description 4
- 238000005259 measurement Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000035772 mutation Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 230000010358 mechanical oscillation Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Control Of Ac Motors In General (AREA)
Abstract
The utility model discloses a kind of monophase machine performance test protective devices, including control circuit, the control circuit is respectively equipped with bidirectional thyristor control onunit, voltage regulation unit, from lock unit, isolating transformer, overload protection unit, AC power source one end connects the input terminal of the bidirectional thyristor control onunit, the output end of the bidirectional thyristor control onunit connects the AC power source other end after concatenating the isolating transformer input side, the voltage regulation unit is in parallel with bidirectional thyristor control onunit, it is described to be connected to AC power source both ends from lock unit, the self-locking output end from lock unit is connect with the self-locking input terminal of bidirectional thyristor control onunit, the input terminal of the overload protection unit is connect with the isolating transformer outlet side, the output end of the overload protection unit is used for and test Motor connection.The utility model energy effective protection motor, easy to operate, testing efficiency be high and easy popularization.
Description
Technical field
The utility model relates to Motor Measuring Technology fields, more specifically, it relates to a kind of monophase machine performance test
Protective device.
Background technique
Monophase machine standing time is long or runing time is long, and performance is begun to decline, and is needed to detect again, be generallyd use at present
Multimeter measurement, method are simple.But it is inaccurate sometimes, there are also other factors with multimeter to monophase machine performance measurement
If the problems such as capacitive property, mechanical oscillation, noise, friction exists, user's combined floodgate can burn rapidly motor, usual user after powering on
Can only repair scrap motor or buy again, economic loss is big, and cost of labor expenditure is big, and multiple with multimeter measurement operation
Miscellaneous, low efficiency.
Utility model content
The technical problems to be solved in the utility model is the above-mentioned deficiency for the prior art, and the utility model provides one kind
It can effective protection motor, easy to operate, testing efficiency be high and the monophase machine performance test protective device of easy popularization.
Technical scheme of the utility model is as follows: a kind of monophase machine performance test protective device, including control electricity
Road, the control circuit are respectively equipped with bidirectional thyristor control onunit, voltage regulation unit, from lock unit, isolating transformer, mistake
Protection location is carried, AC power source one end connects the input terminal of the bidirectional thyristor control onunit, the bidirectional thyristor
The output end for controlling onunit concatenates the connection AC power source other end after the isolating transformer input side, the voltage regulation unit
It is in parallel with bidirectional thyristor control onunit, described to be connected to AC power source both ends from lock unit, oneself from lock unit
Lock output end is connect with the self-locking input terminal of bidirectional thyristor control onunit, the input terminal of the overload protection unit
It is connect with the isolating transformer outlet side, the output end of the overload protection unit is used to connect with test motor.
As a further improvement, bidirectional thyristor control onunit include bidirectional thyristor, first resistor, after
Second normally opened contact of electric appliance, first main electrode of bidirectional thyristor are connect with AC power source one end, the bidirectional thyristor
The second main electrode of bidirectional thyristor and isolating transformer input are separately connected after gate pole concatenation first resistor, the second normally opened contact
Side.
Further, the voltage regulation unit includes capacitor, second resistance, and the capacitor, second resistance are serially connected with alternating current
Between source one end and isolating transformer input side.
Further, it is described from lock unit include start switch, shutdown switch, relay, it is described to start switch, stop opening
It closes, be connected to AC power source both ends after the coil of relay is sequentially connected in series, the first normally opened contact of the relay is opened with described
Dynamic switch in parallel.
Further, the overload protection unit includes second fuse, test switch, voltmeter, the voltmeter one
End is connect by test switch, second fuse with isolating transformer outlet side one end, the voltmeter other end and institute
The connection of the isolating transformer outlet side other end is stated, the both ends of the voltmeter are the output end of overload protection unit, are used for and institute
State test motor connection.
It further, further include operation panel, the operation panel integrates the control circuit, and is equipped with and the control
The indicating unit of circuit connection.
Beneficial effect
The utility model compared with prior art, has the advantage that are as follows:
1, since test motor is resistance load, when testing motor and connecting, the outlet side of isolating transformer can reflect first
The voltage for testing motor both ends out, when the performance for testing motor is bad, the numerical value of voltmeter be will rise rapidly, according to voltmeter
Numerical value carry out control test and switch on-off, motor can be tested with effective protection, prevent test motor overload serious and damage,
Meanwhile when current is excessive, second fuse voluntarily fuses, further protection test motor；
2, bidirectional thyristor control onunit can be used for being switched on and off test power supply, on or off speed
Degree is fast, stability is high, good reliability, and voltage regulation unit and bidirectional thyristor control onunit can effectively be absorbed in test motor
Be switched on or switched off moment make isolating transformer generate self induction electromotive force, stablize bidirectional thyristor control onunit both ends electricity
Pressure reduces power supply mutation and damages bidirectional thyristor control onunit, and overload protection unit effectively can detect and protect survey
Motor is tried, prevents test motor overload serious and damages, the utility model is easy to operate, testing efficiency is high and easy popularization；
3, cooperated using the second normally opened contact of bidirectional thyristor and relay and test power supply is switched on and off, it can
To avoid the voltge surge that relay contact closure moment generates, the stability of control circuit is improved；
4, capacitor, second resistance be composed in series RC circuit can effectively absorb motor be switched on or switched off moment make isolation become
The self induction electromotive force that depressor generates, to limit voltage build-up rate in bidirectional thyristor, meanwhile, RC circuit can be self induction electromotive force
There is provided continuous current circuit, it is ensured that the not breakdown damage of bidirectional thyristor improves the stability of bidirectional thyristor control onunit.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of operation panel in the utility model；
Fig. 2 is the circuit diagram in the utility model.
Wherein: 1- operation panel, 2- accessory power outlet, 3- first fuse seat, 4- second fuse seat, A- bidirectional thyristor
Onunit, B- voltage regulation unit, C- is controlled to become from lock unit, D- overload protection unit, S1- motor, U1- voltmeter, T1- isolation
Depressor, J1- upper electrical switch, J2- start switch, J3- shutdown switch, J4- test switch, AC- power supply, FU1- first fuse,
FU2- second fuse, VT1- bidirectional thyristor, K1- relay, R1- first resistor, R2- second resistance, C1- capacitor, HL1-
Power supply indicator, HL2- test indicator light.
Specific embodiment
Specific embodiment in reference to the accompanying drawing is described further the utility model.
Refering to fig. 1-2, a kind of monophase machine performance test protective device, including control circuit, control circuit are respectively equipped with
Bidirectional thyristor controls onunit A, voltage regulation unit B, from lock unit C, isolating transformer T1, overload protection unit D, alternating current
Source one end connects the input terminal of bidirectional thyristor control onunit A, and bidirectional thyristor controls the output end concatenation of onunit A
The AC power source other end is connected after isolating transformer T1 input side, voltage regulation unit B and bidirectional thyristor control onunit A are simultaneously
Connection, is connected to AC power source both ends from lock unit C, controls onunit A from the self-locking output end and bidirectional thyristor of lock unit C
The connection of self-locking input terminal, the input terminal of overload protection unit D connect with isolating transformer T1 outlet side, overload protection unit D
Output end be used for test motor S1 connect.
Bidirectional thyristor control onunit A include bidirectional thyristor VT1, first resistor R1, relay K1 second often
Contact K1-2 is opened, the first main electrode of bidirectional thyristor VT1 is connect with AC power source one end, bidirectional thyristor VT1 gate pole concatenation the
The second main electrode of bidirectional thyristor VT1 and isolating transformer T1 input are separately connected after one resistance R1, the second normally opened contact K1-2
Side is switched on and off test power supply using the second normally opened contact K1-2 of bidirectional thyristor VT1 and relay cooperation, can
To avoid the voltge surge that relay contact closure moment generates, the stability of control circuit is improved；Voltage regulation unit B includes capacitor
C1, second resistance R2, capacitor C1, second resistance R2 are serially connected between AC power source one end and isolating transformer T1 input side, electricity
Hold C1, second resistance R2 and be composed in series RC circuit and can effectively absorb and is switched on or switched off moment in test motor S1 and makes that transformation is isolated
The self induction electromotive force that device T1 is generated, to limit voltage build-up rate in bidirectional thyristor VT1, meanwhile, RC circuit can be self-induction electricity
Kinetic potential provides continuous current circuit, it is ensured that the not breakdown damage of bidirectional thyristor VT1 improves bidirectional thyristor control onunit A's
Stability.
From lock unit C include start switch J2, shutdown switch J3, relay K1, start switch J2, shutdown switch J3, after
The coil of electric appliance K1 is connected to AC power source both ends after being sequentially connected in series, the first normally opened contact K1-1 of relay K1 with start switch
J2 is in parallel, and the self-locking output end from lock unit C is the coil of relay K1, and bidirectional thyristor controls onunit A's
Self-locking input terminal is the second normally opened contact K1-2 of relay K1.
Overload protection unit D includes second fuse FU2, test switch J4, voltmeter U1, and the one end voltmeter U1 passes through survey
J4 is closed in runin, second fuse FU2 is connect with isolating transformer T1 outlet side one end, the voltmeter U1 other end and isolating transformer
The connection of the T1 outlet side other end, the both ends of voltmeter U1 are the output end of overload protection unit D, for connecting with test motor S1
It connects, since test motor S1 is resistance load, when testing motor S1 and connecting, the outlet side of isolating transformer T1 can reflect first
The voltage for testing the both ends motor S1 out, when the performance for testing motor S1 is bad, the numerical value of voltmeter U1 be will rise rapidly, according to
The numerical value of voltmeter U1 carries out the on-off of control test switch J4, can test motor S1 with effective protection, prevent test motor S1
Overload is serious and damages, meanwhile, when current is excessive, second fuse FU2 voluntarily fuses, further protection test motor S1.
Control circuit further respectively has upper electrical switch J1, first fuse FU1, upper electrical switch J1, first fuse FU1 string
It is connected to after connection between the first main pole of AC power source one end and bidirectional thyristor VT1.
Monophase machine performance test protective device further includes operation panel 1,1 integral control circuit of operation panel, and is equipped with
The indicating unit connected to the control circuit, indicating unit include power supply indicator HL1, test indicator light HL2, wherein power supply refers to
Show that the one end lamp HL1 is connect with the one end first fuse FU1, the other end is connect with AC power source one end, tests the one end indicator light HL2
It is connect respectively with the one end second fuse FU2, test one end switch J4, the test indicator light HL2 other end and isolating transformer T1
The connection of outlet side one end is convenient to investigation power failure and observes test mode；Upper electrical switch J1, it starts switch J2, stop
Switch J3, test switch J4, voltmeter U1 are each provided on operation panel 1, facilitate operation, and output is additionally provided on operation panel 1 and is inserted
Seat 2 and be respectively used to installation first fuse FU1, the first fuse seat 3 of second fuse FU2, second fuse seat 4,
Accessory power outlet 2 is connect with the both ends voltmeter U1, and for the power supply line at the both ends connecting test motor S1, wiring is simple and convenient, and first
Fuse base 3, second fuse seat 4, which can significantly facilitate, overhauls first fuse FU1 and second fuse FU2.
The operating process of the utility model: the accessory power outlet being first connected to the power supply line of motor S1 on operation panel 1
2；Then it is closed upper electrical switch J1, starts switch J2, guarantee that power supply indicator HL1, test indicator light HL2 are lighted simultaneously；Finally
Flicking tests switch J4, and motor S1 starts turning and observe operating condition, such as found, abnormal sound, mechanical friction, bearing is stuck asks
Topic is unclamped test switch J4 at once and is handled, and the performance such as motor S1 is bad, and voltmeter U1 numerical value will rise rapidly, this
When at once unclamp test switch J4, when motor S1 overload it is serious when blow second fuse FU2 automatically, to be played to motor S1
Maximum protective effect.
The utility model bidirectional thyristor control onunit A can be used for being switched on and off test power supply, lead
Logical or cut-off velocity is fast, stability is high, good reliability, voltage regulation unit B controls that onunit A is in parallel to be had with bidirectional thyristor
Effect absorb test motor S1 be switched on or switched off moment make isolating transformer T1 generate self induction electromotive force, stablize bidirectional thyristor
The voltage at the both ends onunit A is controlled, power supply mutation is reduced and damages bidirectional thyristor control onunit A, overload protection list
First D effectively can detect and protect test motor S1, prevent test motor S1 overload serious and damage, the utility model operation letter
Single, testing efficiency height and easy popularization.
The above are merely preferred embodiments of the present invention, it should be pointed out that for those skilled in the art,
Under the premise of not departing from the utility model structure, several modifications and improvements can also be made, these all will not influence practical
The effect and patent practicability of novel implementation.
Claims (6)
1. a kind of monophase machine performance test protective device, it is characterised in that: including control circuit, the control circuit is set respectively
There are bidirectional thyristor control onunit (A), voltage regulation unit (B), from lock unit (C), isolating transformer (T1), overload protection list
First (D), AC power source one end connect the input terminal of bidirectional thyristor control onunit (A), the bidirectional thyristor control
The output end of onunit (A) processed connects the AC power source other end after concatenating isolating transformer (T1) input side, described steady
Press unit (B) in parallel with bidirectional thyristor control onunit (A), it is described to be connected to AC power source both ends, institute from lock unit (C)
It states and is connect from the self-locking output end of lock unit (C) with the self-locking input terminal of bidirectional thyristor control onunit (A), it is described
The input terminal of overload protection unit (D) is connect with the isolating transformer (T1) outlet side, the overload protection unit (D) it is defeated
Outlet is used to connect with test motor (S1).
2. monophase machine performance test protective device according to claim 1, it is characterised in that: the bidirectional thyristor control
Onunit (A) processed includes the second normally opened contact (K1-2) of bidirectional thyristor (VT1), first resistor (R1), relay (K1),
First main electrode of bidirectional thyristor (VT1) is connect with AC power source one end, bidirectional thyristor (VT1) gate pole concatenation the
The second main electrode of bidirectional thyristor (VT1) and isolating transformer are separately connected after one resistance (R1), the second normally opened contact (K1-2)
(T1) input side.
3. monophase machine performance test protective device according to claim 1, it is characterised in that: the voltage regulation unit (B)
Including capacitor (C1), second resistance (R2), the capacitor (C1), second resistance (R2) are serially connected with AC power source one end and isolation becomes
Between depressor (T1) input side.
4. monophase machine performance test protective device according to claim 1, it is characterised in that: described from lock unit (C)
It is described to start switch (J2), shutdown switch (J3), relay including starting switch (J2), shutdown switch (J3), relay (K1)
(K1) coil is connected to AC power source both ends, the first normally opened contact (K1-1) of the relay (K1) and institute after being sequentially connected in series
It states and starts switch (J2) parallel connection.
5. monophase machine performance test protective device according to claim 1, it is characterised in that: the overload protection unit
It (D) include second fuse (FU2), test switch (J4), voltmeter (U1), described voltmeter one end (U1) passes through test switch
(J4), second fuse (FU2) is connect with the isolating transformer (T1) outlet side one end, voltmeter (U1) other end with
Isolating transformer (T1) the outlet side other end connection, the both ends of the voltmeter (U1) are the defeated of overload protection unit (D)
Outlet, for being connect with the test motor (S1).
6. monophase machine performance test protective device described in -5 any one according to claim 1, it is characterised in that: further include
Operation panel (1), the operation panel (1) integrates the control circuit, and is equipped with the instruction list connecting with the control circuit
Member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821443666.4U CN208589773U (en) | 2018-09-05 | 2018-09-05 | Monophase machine performance test protective device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821443666.4U CN208589773U (en) | 2018-09-05 | 2018-09-05 | Monophase machine performance test protective device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208589773U true CN208589773U (en) | 2019-03-08 |
Family
ID=65545630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821443666.4U Withdrawn - After Issue CN208589773U (en) | 2018-09-05 | 2018-09-05 | Monophase machine performance test protective device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208589773U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109038499A (en) * | 2018-09-05 | 2018-12-18 | 广西玉柴机器股份有限公司 | Monophase machine performance test protective device |
-
2018
- 2018-09-05 CN CN201821443666.4U patent/CN208589773U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109038499A (en) * | 2018-09-05 | 2018-12-18 | 广西玉柴机器股份有限公司 | Monophase machine performance test protective device |
| CN109038499B (en) * | 2018-09-05 | 2023-11-14 | 广西玉柴机器股份有限公司 | Single-phase motor performance test protection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20190308 Effective date of abandoning: 20231114 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20190308 Effective date of abandoning: 20231114 |