CN1066738A - Open phase timer - Google Patents
Open phase timer Download PDFInfo
- Publication number
- CN1066738A CN1066738A CN 91106104 CN91106104A CN1066738A CN 1066738 A CN1066738 A CN 1066738A CN 91106104 CN91106104 CN 91106104 CN 91106104 A CN91106104 A CN 91106104A CN 1066738 A CN1066738 A CN 1066738A
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- China
- Prior art keywords
- phase
- phase failure
- electromagnetic relay
- relay
- voltage
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- Measurement Of Predetermined Time Intervals (AREA)
Abstract
The invention belongs to the corollary apparatus of electric system high voltage supply, be used for the time measurement of the high pressure phase failure identification and the phase failure and electricity consumption.The present invention mainly adopts the electromagnetic relay element, by each relay tip control clock and alarm bell, reaches the purpose of phase failure timing.The present invention is simple in structure, in electrical energy meter electricity hydraulic circuit outage and have under the situation of electricity consumption and can accurately measure power-off time, writes down the separate of the three-phase voltage phase failure simultaneously, notifies the operator on duty in time to handle by the phase breaking alarm loop.
Description
The invention belongs to the corollary apparatus of electric system high voltage supply, be used for the separate identification and the metering of phase failure time of the high pressure phase failure.
The electric energy metrical of electric system high voltage supply is that the secondary terminal by the voltage transformer (VT) summation current transformer connects the metering of finishing electric energy with electric energy meter.In actual track, the high pressure inlet wire connects the high pressure disconnecting link, connects high-voltage fuse below the disconnecting link, joins with voltage transformer (VT) then.In electric process, if draw back disconnecting link or blown fuse, the user still can electricity consumption, but electric energy meter then stops accordingly or counted electric weight less.This phenomenon happens occasionally, and power loss is very big, and how the electricity ratio of error of omission more reasonably being calculated is the problem that needs solution.Work out phase failure time set around addressing this problem at present, wherein major part is an integrated circuit, electric circuit construction, and the emerged in operation poor anti jamming capability, timing error is big, line construction complexity, maintenance and repair difficulty.
In view of this, the object of the present invention is to provide a kind of open phase timer of simple in structure, strong interference immunity, this open phase timer is in electrical energy meter electricity hydraulic circuit outage and have under the situation of electricity consumption and can accurately measure the outage electricity consumption time and write down the separate of the three-phase voltage phase failure simultaneously, and notifies the operator on duty in time to handle by the phase breaking alarm loop.
The present invention is achieved through the following technical solutions: voltage circuit of the present invention adopts the electromagnetic relay element, the open phase timer three-phase input end is in parallel with the electric energy meter three-phase voltage, each phase voltage connects DC relay behind the transformer step-down rectifier, each relay tip control clock and alarm bell, current return adopts the high sensitivity current relay, its contact control clock loop.
In conjunction with the accompanying drawings formation of the present invention is done further detailed description.
Fig. 1 is an electrical schematic diagram of the present invention.
With reference to Fig. 1, the A of open phase timer voltage circuit, B, C three-phase input end are in parallel with the electric energy meter three-phase voltage, and every voltage meets rectification circuit D after by transformer B step-down
1, D
2, D
3, rectification circuit D
1, D
2, D
3DC voltage output be connected to the winding connection end of electromagnetic relay AJ, BJ, CJ, current return serial connection ac current relay P, the normally opened contact AJ of electromagnetic relay AJ, BJ, CJ respectively
1, BJ
1, CJ
1, be connected in series clock H respectively, and with the normally closed contact P of current relay P
1Be in parallel another group normally opened contact AJ of electromagnetic relay AJ, BJ, CJ with the series loop of electric current E
2, BJ
2, CJ
2Back in parallel and alarm bell F, power supply E, K switch is connected in series.In the actual motion, when arbitrary phase phase failure and electricity consumption, since the outage of phase failure electromagnetic relay, corresponding normal opened contact closure, and because electricity consumption, current relay has electric current to pass through, contact P
1Closure, clock loop is connected, and that cuts off the power supply and electricity consumption mutually, and that phase clock clocks, and alarm circuit is also connected and is reported to the police.The people is for the phase failure or the natural phase failure but when not having electricity consumption, current relay P is failure to actuate, P
1The contact open circuit, the clock loop open circuit is not-time.During normal the operation, each contact of electromagnetic relay often leaves, the clock loop open circuit, and clock is also not-time.The present invention is simple in structure, and strong interference immunity can accurately measure time of the electrical network phase failure and electricity consumption and separate, can prevent power loss effectively and provide foundation for remedying electric weight.
Claims (1)
1, open phase timer is characterized in that the voltage circuit of phase failure gauge adopts the electromagnetic relay element, and its A, B, C three-phase voltage meet rectification circuit D after by transformer B step-down
1, D
2, D
3, rectification circuit D
1, D
2, D
3DC voltage output meet and electromagnetic relay AJ, BJ, CJ winding connection end current return serial connection ac current relay P, the normally opened contact AJ of electromagnetic relay AJ, BJ, CJ respectively
1, BJ
1, CJ
1Be connected in series clock H respectively, and with the normally closed contact P of current relay P
1Be in parallel another group normally opened contact AJ of electromagnetic relay AJ, BJ, CJ with the series loop of power supply E
2, BJ
2, CJ
2Back in parallel is connected in series with alarm bell F, power supply E, K switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91106104 CN1066738A (en) | 1991-05-13 | 1991-05-13 | Open phase timer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91106104 CN1066738A (en) | 1991-05-13 | 1991-05-13 | Open phase timer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1066738A true CN1066738A (en) | 1992-12-02 |
Family
ID=4907541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91106104 Pending CN1066738A (en) | 1991-05-13 | 1991-05-13 | Open phase timer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1066738A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101739734B (en) * | 2008-11-14 | 2012-02-22 | 温县供电有限责任公司 | No-load time integrator of agricultural irrigation distribution transformer |
| CN103134976A (en) * | 2013-02-21 | 2013-06-05 | 天津华宁电子有限公司 | Mine circuit electrification indication device and achieving method based on magnetic circuit blocking technology |
-
1991
- 1991-05-13 CN CN 91106104 patent/CN1066738A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101739734B (en) * | 2008-11-14 | 2012-02-22 | 温县供电有限责任公司 | No-load time integrator of agricultural irrigation distribution transformer |
| CN103134976A (en) * | 2013-02-21 | 2013-06-05 | 天津华宁电子有限公司 | Mine circuit electrification indication device and achieving method based on magnetic circuit blocking technology |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| AD01 | Patent right deemed abandoned | ||
| C20 | Patent right or utility model deemed to be abandoned or is abandoned |