CN107884734A - A kind of new phase-sequence meter test device - Google Patents
A kind of new phase-sequence meter test device Download PDFInfo
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- CN107884734A CN107884734A CN201711003741.5A CN201711003741A CN107884734A CN 107884734 A CN107884734 A CN 107884734A CN 201711003741 A CN201711003741 A CN 201711003741A CN 107884734 A CN107884734 A CN 107884734A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
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- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The present invention relates to a kind of new phase-sequence meter test device,Including phase sequence generator,Zero terminal N,Three-phase terminal L1,Three-phase terminal L2,Three-phase terminal L3,Delay switch SJ1,Intermediate relay ZJ,Positive sequence button SA,Normal opened contact KM1.1,A.C. contactor KM1,Normally closed contact KM2.2,Inverted sequence button NA,Normal opened contact KM2.1,A.C. contactor KM2,Normally closed contact KM1.2,Controlling switch ZA,Normal opened contact KM1.5,Normal opened contact KM2.5,Time relay sj,Normal opened contact KM1.3,Normal opened contact KM2.3,Positive sequence indicator lamp HR,Inverted sequence indicator lamp HG,Stop button TA,Normally closed contact ZJ1,Normally closed contact ZJ2,Normal opened contact KM3.1~3.3 and normal opened contact KM4.1~4.3.
Description
Technical field
The present invention relates to technical field of electric power, more particularly, to a kind of new phase-sequence meter test device.
Background technology
The internal structure of general phase-sequence meter is similar to three-phase alternating-current motor, with three-phase alternating current winding and very light turn
Son, it can be rotated under the torque of very little, and the operating voltage range of three-phase alternating current winding is very wide, from tens volts to five hectovolts all
It can work.During test, the direction of rotation according to rotor determines phase sequence.Also a kind of phase-sequence meter is true by rc phase shifter circuit
Determine phase sequence, just there is different traffic light system phase sequences in different phase sequences.
For early stage electrical measurement personnel when laboratory tests phase-sequence meter, the method used is inserted from exchange 380V power supply boxs or power supply
Seat draws A, B, C three phase mains, respectively the corresponding three-phase for being connected on phase-sequence meter, after the feeler switch for pressing phase-sequence meter, observes phase-sequence meter
Rotor whether rotate clockwise, then any two-phase in phase-sequence meter three-phase is exchanged again, then observe the rotor of phase-sequence meter to be
It is no to rotate counterclockwise, so as to judge whether the phase sequence of phase-sequence meter is correct.This method needs specifically used when to exchange
For any two-phase in phase-sequence meter three-phase, it is necessary to re-start wiring, this not only easily causes exchange there is great risk
The short circuit of 380V three phase mains or ground connection and instrument damage, or even accident of human electric shock can be caused, operating efficiency is also very low.
The content of the invention
Power supply holds caused by needing to repeat wiring when the present invention is tested phase-sequence meter for solution prior art
A kind of easily short circuit and the easy technological deficiency for causing accident of human electric shock, there is provided new phase-sequence meter test device.
To realize above goal of the invention, the technical scheme of use is：
A kind of new phase-sequence meter test device, including phase sequence generator, zero terminal N, three-phase terminal L1, three-phase terminal
L2, three-phase terminal L3, delay switch SJ1, intermediate relay ZJ, positive sequence button SA, normal opened contact KM1.1, A.C. contactor
KM1, normally closed contact KM2.2, inverted sequence button NA, normal opened contact KM2.1, A.C. contactor KM2, normally closed contact KM1.2, control are opened
Close ZA, normal opened contact KM1.5, normal opened contact KM2.5, time relay sj, normal opened contact KM1.3, normal opened contact KM2.3, just
Sequence indicator lamp HR, inverted sequence indicator lamp HG, stop button TA, normally closed contact ZJ1, normally closed contact ZJ2, normal opened contact KM3.1~3.3
With normal opened contact KM4.1~4.3；
Wherein phase sequence generator is connected with zero terminal N, three-phase terminal L1, three-phase terminal L2, three-phase terminal L3；Three phase terminals
Sub- L1 and delay switch SJ1 one end, positive sequence button SA one end, normal opened contact KM1.1 one end, the one of inverted sequence button NA
End, normal opened contact KM2.1 one end, controlling switch ZA one end, normal opened contact KM1.3 one end, the one of normal opened contact KM2.3
End connection；The delay switch SJ1 other end by intermediate relay ZJ and normally closed contact ZJ1 one end, normally closed contact ZJ2 one
End connection；The positive sequence button SA other ends are connected with the normal opened contact KM1.1 other end, and the normal opened contact KM1.1 other ends lead to successively
A.C. contactor KM1, normally closed contact KM2.2 and normally closed contact ZJ1 one end, normally closed contact ZJ2 one end is crossed to be connected；Inverted sequence is pressed
The button NA other ends are connected with the normal opened contact KM2.1 other end, and the normal opened contact KM2.1 other ends pass sequentially through A.C. contactor
KM2, normally closed contact KM1.2 are connected with normally closed contact ZJ1 one end, normally closed contact ZJ2 one end；The controlling switch ZA other end
One end, normal opened contact KM2.5 one end with normal opened contact KM1.5 are connected, normal opened contact the KM1.5 other end, normal opened contact
KM2.5 other end passage time relay SJ and normally closed contact ZJ1 one end, normally closed contact ZJ2 one end is connected；It is normally opened to connect
The point KM1.3 other end, the normal opened contact KM2.3 other end pass through positive sequence indicator lamp HR, inverted sequence indicator lamp HG and zero line respectively
Terminal N connections, zero terminal N are connected by the stop button TA and normally closed contact ZJ1 other end, the normally closed contact ZJ2 other end
Connect；One end of normal opened contact KM3.1~3.3 is connected with three-phase terminal L1, three-phase terminal L2, three-phase terminal L3 respectively, normally opened to connect
One end of point KM4.1~4.3 is connected with three-phase terminal L1, three-phase terminal L3, three-phase terminal L2 respectively, and normal opened contact KM4.1~
4.3 other end other end with normal opened contact KM3.1, the normal opened contact KM3.2 other end, normal opened contact KM3.3 respectively
The other end connects.
Preferably, the test device also includes voltmeter V1, voltmeter V2 and voltmeter V3, voltmeter V1, voltage
The other end of Table V 2 and voltmeter the V3 one end respectively with normal opened contact KM3.1~3.3 is connected, voltmeter V1, voltmeter V2 and
Voltmeter V3 other end connecting to neutral line terminals N.Voltmeter is set up, monitors whether voltage output and three-phase output voltage are normal.
Preferably, the test device also includes emergency stop switch QF, emergency stop switch QF and normal opened contact KM3.1~3.3
The other end connection.Set up emergency stop switch QF, can fast shut-off phase-sequence meter test device out-put supply, prevent accident,
Preferably personal safety is ensured.
Preferably, the test device also includes power switch and protective tube F, and power switch passes through protective tube F and phase
Sequence generator connects.
When using test device provided by the invention, the three-phase wire clamp of phase-sequence meter is respectively connected to emergency stop switch first
QF.Then to phase-sequence meter test device incoming transport 220V power supplys, phase sequence generator is opened, phase-sequence meter test device is sent out by phase sequence
Device is given birth to from output three-phase 380V power supplys；
Test device provided by the invention has manual test and automatic test both of which, the specific works of both of which
Principle and process are as follows：
First, manual test
1) the positive transfer to test of phase-sequence meter
(1) positive sequence button SA, contactor KM1 excitation actuatings, its normal opened contact KM1.1, KM1.3, normal opened contact are pressed
KM3.1~3.3 close, and normally closed contact KM1.2 disconnects；
(2) normal opened contact KM1.1 is closed, and realizes self-sustaining, turns on rotating forward loop；
(3) normal opened contact KM1.3 is closed, and positive sequence indicator lamp HR (red) is shinny；
(4) normal opened contact KM3.1~3.3 close, now phase-sequence meter test device output positive sequence power supply, voltmeter V1, V2,
The voltage that V3 is shown should be 380V, and phase-sequence meter should turn clockwise.
(5) normally closed contact KM1.2 disconnects, it is therefore an objective to：After positive sequence button SA is pressed, when preventing from pressing inverted sequence button NA by mistake,
Cause contactor KM1, KM2 excitation simultaneously, normal opened contact KM3.1~3.3 are closed at normal opened contact KM4.1~4.3, caused
Phase-sequence meter test device output short-circuit.
(6) rotate forward after being completed, press stop button TA, contactor KM1 losss of excitation, normal opened contact KM3.1~3.3 are broken
Open, the three-phase output voltage of phase-sequence meter test device should be zero, and the voltage that voltmeter is shown also all should be zero.
2) phase-sequence meter reversion test
Similarly, when pressing inverted sequence button NA, contactor KM2 excitations, the simultaneously self-sustaining of normal opened contact KM2.1 closures；It is normally opened to connect
Point KM2.3 is closed, and inverted sequence indicator lamp HG (green) is shinny；Normal opened contact KM4.1~4.3 close, the output of phase-sequence meter test device
Inverted sequence power supply, now phase-sequence meter answer rotate counterclockwise.
2nd, phase-sequence meter is tested automatically
(1) automatic control switch ZA is closed, presses SA positive sequence buttons, contactor KM1 excitation actuatings, normal opened contact KM1.5
Closure, time relay sj action start timing, phase-sequence meter test device output positive sequence power supply, and phase-sequence meter turns clockwise；
(2) the delay switch SJ1 closures of time relay sj start, intermediate relay ZJ action, normally closed contact ZJ1, ZJ2
Disconnect, now zero line disconnects, and the return of contactor KM1 losss of excitation is not charged, and the three-phase output voltage of phase-sequence meter test device is zero,
Phase-sequence meter test job finishes.
(3) reversion test job principle is same as above.
Compared with prior art, the beneficial effects of the invention are as follows：
(1) wiring need not be exchanged and repeated when being tested using device provided by the invention, avoid that power supply occurs
Short circuit and accident of human electric shock.
(2) on the basis of original power supply end switch, set up emergency stop switch, can fast shut-off phase-sequence meter test device it is defeated
Go out power supply, prevent accident, preferably ensured personal safety.
(3) the 380V three-phase and four-line ac power plugs of former detection case are changed to single-phase 220V ac power plugs, and led to
Phase sequence generator is crossed from the 380V power supplys of output three-phase 220.
Brief description of the drawings
Fig. 1 is the structural representation of test device.
Embodiment
Accompanying drawing being given for example only property explanation, it is impossible to be interpreted as the limitation to this patent；
Below in conjunction with drawings and examples, the present invention is further elaborated.
Embodiment 1
As shown in figure 1, a kind of new phase-sequence meter test device, including phase sequence generator, zero terminal N, three-phase terminal
L1, three-phase terminal L2, three-phase terminal L3, delay switch SJ1, intermediate relay ZJ, positive sequence button SA, normal opened contact KM1.1, friendship
Flow contactor KM1, normally closed contact KM2.2, inverted sequence button NA, normal opened contact KM2.1, A.C. contactor KM2, normally closed contact
It is KM1.2, controlling switch ZA, normal opened contact KM1.5, normal opened contact KM2.5, time relay sj, normal opened contact KM1.3, normally opened
Contact KM2.3, positive sequence indicator lamp HR, inverted sequence indicator lamp HG, stop button TA, normally closed contact ZJ1, normally closed contact ZJ2, normally opened connect
Point KM3.1~3.3 and normal opened contact KM4.1~4.3；
Wherein phase sequence generator is connected with zero terminal N, three-phase terminal L1, three-phase terminal L2, three-phase terminal L3；Three phase terminals
Sub- L1 and delay switch SJ1 one end, positive sequence button SA one end, normal opened contact KM1.1 one end, the one of inverted sequence button NA
End, normal opened contact KM2.1 one end, controlling switch ZA one end, normal opened contact KM1.3 one end, the one of normal opened contact KM2.3
End connection；The delay switch SJ1 other end by intermediate relay ZJ and normally closed contact ZJ1 one end, normally closed contact ZJ2 one
End connection；The positive sequence button SA other ends are connected with the normal opened contact KM1.1 other end, and the normal opened contact KM1.1 other ends lead to successively
A.C. contactor KM1, normally closed contact KM2.2 and normally closed contact ZJ1 one end, normally closed contact ZJ2 one end is crossed to be connected；Inverted sequence is pressed
The button NA other ends are connected with the normal opened contact KM2.1 other end, and the normal opened contact KM2.1 other ends pass sequentially through A.C. contactor
KM2, normally closed contact KM1.2 are connected with normally closed contact ZJ1 one end, normally closed contact ZJ2 one end；The controlling switch ZA other end
One end, normal opened contact KM2.5 one end with normal opened contact KM1.5 are connected, normal opened contact the KM1.5 other end, normal opened contact
KM2.5 other end passage time relay SJ and normally closed contact ZJ1 one end, normally closed contact ZJ2 one end is connected；It is normally opened to connect
The point KM1.3 other end, the normal opened contact KM2.3 other end pass through positive sequence indicator lamp HR, inverted sequence indicator lamp HG and zero line respectively
Terminal N connections, zero terminal N are connected by the stop button TA and normally closed contact ZJ1 other end, the normally closed contact ZJ2 other end
Connect；One end of normal opened contact KM3.1~3.3 is connected with three-phase terminal L1, three-phase terminal L2, three-phase terminal L3 respectively, normally opened to connect
One end of point KM4.1~4.3 is connected with three-phase terminal L1, three-phase terminal L3, three-phase terminal L2 respectively, and normal opened contact KM4.1~
4.3 other end other end with normal opened contact KM3.1, the normal opened contact KM3.2 other end, normal opened contact KM3.3 respectively
The other end connects.
In specific implementation process, the test device also includes voltmeter V1, voltmeter V2 and voltmeter V3, electricity
The other end of the one end of pressure Table V 1, voltmeter V2 and voltmeter V3 respectively with normal opened contact KM3.1~3.3 is connected, voltmeter V1,
Voltmeter V2 and voltmeter V3 other end connecting to neutral line terminals N.Voltmeter is set up, monitors that voltage output and three-phase output voltage are
It is no normal.
In specific implementation process, the test device also includes emergency stop switch QF, and emergency stop switch QF connects with normally opened
The other end connection of point KM3.1~3.3.Set up emergency stop switch QF, can fast shut-off phase-sequence meter test device out-put supply, prevent
Only accident occurs, and has preferably ensured personal safety.
In specific implementation process, the test device also includes power switch and protective tube F, and power switch passes through
Protective tube F is connected with phase sequence generator.
When using test device provided by the invention, the three-phase wire clamp of phase-sequence meter is respectively connected to emergency stop switch first
QF.Then to phase-sequence meter test device incoming transport 220V power supplys, phase sequence generator is opened, phase-sequence meter test device is sent out by phase sequence
Device is given birth to from output three-phase 380V power supplys；
Test device provided by the invention has manual test and automatic test both of which, the specific works of both of which
Principle and process are as follows：
First, manual test
1) the positive transfer to test of phase-sequence meter
(1) positive sequence button SA, contactor KM1 excitation actuatings, its normal opened contact KM1.1, KM1.3, normal opened contact are pressed
KM3.1~3.3 close, and normally closed contact KM1.2 disconnects；
(2) normal opened contact KM1.1 is closed, and realizes self-sustaining, turns on rotating forward loop；
(3) normal opened contact KM1.3 is closed, and positive sequence indicator lamp HR (red) is shinny；
(4) normal opened contact KM3.1~3.3 close, now phase-sequence meter test device output positive sequence power supply, voltmeter V1, V2,
The voltage that V3 is shown should be 380V, and phase-sequence meter should turn clockwise.
(5) normally closed contact KM1.2 disconnects, it is therefore an objective to：After positive sequence button SA is pressed, when preventing from pressing inverted sequence button NA by mistake,
Cause contactor KM1, KM2 excitation simultaneously, normal opened contact KM3.1~3.3 are closed at normal opened contact KM4.1~4.3, caused
Phase-sequence meter test device output short-circuit.
(6) rotate forward after being completed, press stop button TA, contactor KM1 losss of excitation, normal opened contact KM3.1~3.3 are broken
Open, the three-phase output voltage of phase-sequence meter test device should be zero, and the voltage that voltmeter is shown also all should be zero.
2) phase-sequence meter reversion test
Similarly, when pressing inverted sequence button NA, contactor KM2 excitations, the simultaneously self-sustaining of normal opened contact KM2.1 closures；It is normally opened to connect
Point KM2.3 is closed, and inverted sequence indicator lamp HG (green) is shinny；Normal opened contact KM4.1~4.3 close, the output of phase-sequence meter test device
Inverted sequence power supply, now phase-sequence meter answer rotate counterclockwise.
2nd, phase-sequence meter is tested automatically
(1) automatic control switch ZA is closed, presses SA positive sequence buttons, contactor KM1 excitation actuatings, normal opened contact KM1.5
Closure, time relay sj action start timing, phase-sequence meter test device output positive sequence power supply, and phase-sequence meter turns clockwise；
(2) the delay switch SJ1 closures of time relay sj start, intermediate relay ZJ action, normally closed contact ZJ1, ZJ2
Disconnect, now zero line disconnects, and the return of contactor KM1 losss of excitation is not charged, and the three-phase output voltage of phase-sequence meter test device is zero,
Phase-sequence meter test job finishes.
(3) reversion test job principle is same as above.
Obviously, the above embodiment of the present invention is only intended to clearly illustrate example of the present invention, and is not pair
The restriction of embodiments of the present invention.For those of ordinary skill in the field, may be used also on the basis of the above description
To make other changes in different forms.There is no necessity and possibility to exhaust all the enbodiments.It is all this
All any modification, equivalent and improvement made within the spirit and principle of invention etc., should be included in the claims in the present invention
Protection domain within.
Claims (4)
- A kind of 1. new phase-sequence meter test device, it is characterised in that：Including phase sequence generator, zero terminal N, three-phase terminal L1, three-phase terminal L2, three-phase terminal L3, delay switch SJ1, intermediate relay ZJ, positive sequence button SA, normal opened contact KM1.1, friendship Flow contactor KM1, normally closed contact KM2.2, inverted sequence button NA, normal opened contact KM2.1, A.C. contactor KM2, normally closed contact It is KM1.2, controlling switch ZA, normal opened contact KM1.5, normal opened contact KM2.5, time relay sj, normal opened contact KM1.3, normally opened Contact KM2.3, positive sequence indicator lamp HR, inverted sequence indicator lamp HG, stop button TA, normally closed contact ZJ1, normally closed contact ZJ2, normally opened connect Point KM3.1~3.3 and normal opened contact KM4.1~4.3；Wherein phase sequence generator is connected with zero terminal N, three-phase terminal L1, three-phase terminal L2, three-phase terminal L3；Three-phase terminal L1 One end of one end, positive sequence button SA one end, normal opened contact KM1.1 one end, inverted sequence button NA with delay switch SJ1, often Open contact KM2.1 one end, controlling switch ZA one end, normal opened contact KM1.3 one end, normal opened contact KM2.3 one end company Connect；The delay switch SJ1 other end is connected by intermediate relay ZJ and normally closed contact ZJ1 one end, normally closed contact ZJ2 one end Connect；The positive sequence button SA other ends are connected with the normal opened contact KM1.1 other end, and the normal opened contact KM1.1 other ends pass sequentially through friendship Stream contactor KM1, normally closed contact KM2.2 are connected with normally closed contact ZJ1 one end, normally closed contact ZJ2 one end；Inverted sequence button NA The other end is connected with the normal opened contact KM2.1 other end, the normal opened contact KM2.1 other ends pass sequentially through A.C. contactor KM2, often Close contact KM1.2 and normally closed contact ZJ1 one end, normally closed contact ZJ2 one end is connected；The controlling switch ZA other end with it is normally opened Contact KM1.5 one end, normal opened contact KM2.5 one end connection, the normal opened contact KM1.5 other end, normal opened contact KM2.5 Other end passage time relay SJ is connected with normally closed contact ZJ1 one end, normally closed contact ZJ2 one end；Normal opened contact KM1.3 The other end, normal opened contact KM2.3 the other end respectively pass through positive sequence indicator lamp HR, inverted sequence indicator lamp HG and zero terminal N connect Connect, zero terminal N is connected by stop button TA with the normally closed contact ZJ1 other end, the normally closed contact ZJ2 other end；It is normally opened One end of contact KM3.1~3.3 is connected with three-phase terminal L1, three-phase terminal L2, three-phase terminal L3 respectively, normal opened contact KM4.1 ~4.3 one end is connected with three-phase terminal L1, three-phase terminal L3, three-phase terminal L2 respectively, normal opened contact KM4.1~4.3 it is another The other end with normal opened contact KM3.1, the normal opened contact KM3.2 other end, the normal opened contact KM3.3 other end connect respectively for one end Connect.
- 2. new phase-sequence meter test device according to claim 1, it is characterised in that：The test device also includes Voltmeter V1, voltmeter V2 and voltmeter V3, voltmeter V1, voltmeter V2 and voltmeter V3 one end respectively with normal opened contact The other end connection of KM3.1~3.3, voltmeter V1, voltmeter V2 and voltmeter V3 other end connecting to neutral line terminals N.
- 3. new phase-sequence meter test device according to claim 1, it is characterised in that：The test device also includes Emergency stop switch QF, emergency stop switch QF are connected with the other end of normal opened contact KM3.1~3.3.
- 4. the new phase-sequence meter test device according to any one of claims 1 to 3, it is characterised in that：The test dress Put and also include power switch and protective tube F, power switch is connected by protective tube F with phase sequence generator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711003741.5A CN107884734B (en) | 2017-10-24 | 2017-10-24 | Phase sequence table testing arrangement |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711003741.5A CN107884734B (en) | 2017-10-24 | 2017-10-24 | Phase sequence table testing arrangement |
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| CN107884734A true CN107884734A (en) | 2018-04-06 |
| CN107884734B CN107884734B (en) | 2023-04-28 |
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3778801A (en) * | 1970-04-10 | 1973-12-11 | J Nudelmont | Apparatus for indicating voltage presence, phase sequence, voltage magnitude, ground faults, etc. in an electrical power distribution system |
| DE3313629A1 (en) * | 1983-04-12 | 1984-10-18 | Schleicher Gmbh & Co Relais-Werke Kg, 1000 Berlin | Circuit arrangement for monitoring the phase sequence and the phase failure of a three-phase alternating current |
| CN2390334Y (en) * | 1999-09-17 | 2000-08-02 | 华中理工大学 | Panel of multifunctional protector for AC motor, and structure for mounting it |
| CN2907025Y (en) * | 2006-05-24 | 2007-05-30 | 珠海科达信电子科技有限公司 | Three-phase power voltage regulator with automatic phase sequence switchover function |
| CN101872960A (en) * | 2010-06-01 | 2010-10-27 | 佛山市中格威电子有限公司 | Phase sequence detection and adjustment method and circuit |
| EP2325663A1 (en) * | 2009-11-20 | 2011-05-25 | Itron Metering Solutions UK Ltd | Three-phase electricity meters with phase monitoring indicator |
| CN105548731A (en) * | 2016-02-26 | 2016-05-04 | 国网上海市电力公司 | Low-voltage and three-phase phase-sequence meter |
| CN106291141A (en) * | 2016-08-30 | 2017-01-04 | 中国能源建设集团江苏省电力建设第工程有限公司 | Job site three-phase power supply phase sequence automatic identification equipment |
| CN206020544U (en) * | 2016-08-30 | 2017-03-15 | 中国能源建设集团江苏省电力建设第一工程有限公司 | Job site three-phase power supply phase sequence automatic identification equipment |
| CN107132448A (en) * | 2017-03-16 | 2017-09-05 | 珠海格力电器股份有限公司 | Recognition methods, device and system and the storage medium and processor of power supply wiring |
| CN207366726U (en) * | 2017-10-24 | 2018-05-15 | 广东电网有限责任公司茂名供电局 | A kind of new phase-sequence meter test device |
-
2017
- 2017-10-24 CN CN201711003741.5A patent/CN107884734B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3778801A (en) * | 1970-04-10 | 1973-12-11 | J Nudelmont | Apparatus for indicating voltage presence, phase sequence, voltage magnitude, ground faults, etc. in an electrical power distribution system |
| DE3313629A1 (en) * | 1983-04-12 | 1984-10-18 | Schleicher Gmbh & Co Relais-Werke Kg, 1000 Berlin | Circuit arrangement for monitoring the phase sequence and the phase failure of a three-phase alternating current |
| CN2390334Y (en) * | 1999-09-17 | 2000-08-02 | 华中理工大学 | Panel of multifunctional protector for AC motor, and structure for mounting it |
| CN2907025Y (en) * | 2006-05-24 | 2007-05-30 | 珠海科达信电子科技有限公司 | Three-phase power voltage regulator with automatic phase sequence switchover function |
| EP2325663A1 (en) * | 2009-11-20 | 2011-05-25 | Itron Metering Solutions UK Ltd | Three-phase electricity meters with phase monitoring indicator |
| CN101872960A (en) * | 2010-06-01 | 2010-10-27 | 佛山市中格威电子有限公司 | Phase sequence detection and adjustment method and circuit |
| CN105548731A (en) * | 2016-02-26 | 2016-05-04 | 国网上海市电力公司 | Low-voltage and three-phase phase-sequence meter |
| CN106291141A (en) * | 2016-08-30 | 2017-01-04 | 中国能源建设集团江苏省电力建设第工程有限公司 | Job site three-phase power supply phase sequence automatic identification equipment |
| CN206020544U (en) * | 2016-08-30 | 2017-03-15 | 中国能源建设集团江苏省电力建设第一工程有限公司 | Job site three-phase power supply phase sequence automatic identification equipment |
| CN107132448A (en) * | 2017-03-16 | 2017-09-05 | 珠海格力电器股份有限公司 | Recognition methods, device and system and the storage medium and processor of power supply wiring |
| CN207366726U (en) * | 2017-10-24 | 2018-05-15 | 广东电网有限责任公司茂名供电局 | A kind of new phase-sequence meter test device |
Non-Patent Citations (2)
| Title |
|---|
| 李利明: "一种简易三相交流电相序测量方法" * |
| 杜通波 等: "嵌入式相电检测及相序调整系统设计" * |
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| CN107884734B (en) | 2023-04-28 |
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