CN201955400U - Device for detecting phase sequence of power supply system and alarming - Google Patents
Device for detecting phase sequence of power supply system and alarming Download PDFInfo
- Publication number
- CN201955400U CN201955400U CN2011200059740U CN201120005974U CN201955400U CN 201955400 U CN201955400 U CN 201955400U CN 2011200059740 U CN2011200059740 U CN 2011200059740U CN 201120005974 U CN201120005974 U CN 201120005974U CN 201955400 U CN201955400 U CN 201955400U
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- phase sequence
- phase
- power supply
- alarm
- supply system
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Abstract
A device for detecting phase sequence of a power supply system and alarming belongs to the technical field of power supply units, and aims at discovering the change of the phase sequence due to the overhaul of the power supply system timely and enhancing the efficiency of confirming the phase sequence. The device adopts the technical scheme that the device comprises a phase sequence controller and an alarm, wherein a three phase inlet end of the phase sequence controller is connected on a three phase power supply of a wire inlet cabinet at the low voltage side of a transformer of a low-voltage distribution system, or is connected on a three phase power supply of a high-voltage PT cabinet of a high-voltage power supply network; and an output end of the phase controller is connected with the alarm. By adopting the device for detecting the phase sequence of the power supply system and alarming, in corrective maintenance or scheduled maintenance, if the connection of the phase sequence is incorrect, the phase sequence controller starts the alarm to give an alert so as to alert an operator to correct, thereby avoiding accidents and guaranteeing normal production.
Description
Technical field
The utility model relates to a kind of device that detects the electric power system phase sequence, belongs to the power-supply unit technical field.
Background technology
In industrial and mining enterprises, electric power system is overhauled or safeguarded because fault takes place or all need after after a while.At this moment as can not in time find but owing to be busy with one's work or operating personnel's carelessness, the phase sequence wrong with original electric power system takes place in regular meeting, causes phase sequence to change, and, can cause the equipment counter-rotating, thereby bring unnecessary loss or cause device damage to production.The measure that prevents this situation at present mainly is that operating personnel check after construction, has increased workload, also omission might take place, and is necessary to take measures this situation is improved.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of change that can in time find to overhaul because of electric power system the phase sequence that causes, improves the detection electric power system phase sequence of the efficient of confirming phase sequence and the device of warning.
The technical scheme that solves the problems of the technologies described above is:
A kind of device that detects electric power system phase sequence and warning, it is made up of phase sequence controller and alarm, the three-phase input end of phase sequence controller is connected on the three-phase supply of incoming line cabinet of step down side of low-voltage distribution system, or be connected on the three-phase supply of high pressure P T cabinet of high voltage supply network the output terminal of phase sequence controller device taking alarm.
After adopting the device of this detection electric power system phase sequence and warning, if when when trouble hunting or scheduled maintenance phase sequence connection error taking place, the phase sequence controller will start alarm and send caution, in time reminds operating personnel to correct, avoided the generation of accident, guaranteed to produce and normally carry out.
Description of drawings
Fig. 1 is the connection diagram of the utility model and high pressure P T cabinet;
Fig. 2 is the connection diagram of the utility model and low-voltage distribution cabinet.
Mark is as follows among the figure: phase sequence controller 1, alarm 2.
Embodiment
The utility model is made up of phase sequence controller 1 and alarm 2.
In order to reduce line loss, the high voltage supply power supply mode that at present a lot of industrial and mining enterprises adopt is one tunnel power supply, and another road is in cold standby state.That show among Fig. 1 is high pressure P T cabinet one electrical secondary system figure, gets high pressure P T cabinet three-phase voltage and inserts phase sequence controller 1, connects alarm 2 at the outgoing side of phase sequence controller 1.
That Fig. 2 shows is low-voltage distribution cabinet one electrical secondary system figure, and the three-phase supply of incoming line cabinet of getting the step down side of low-voltage distribution system inserts phase sequence controller 1, connects alarm 2 at the outgoing side of phase sequence controller 1.
The phase sequence that increases the incoming line cabinet of low-voltage distribution system (step down side) and the high pressure P T cabinet of high voltage supply network detects and reports to the police; Be particularly suitable for type of production enterprise, particularly important for the cold standby power supply that uses outer net.
Claims (1)
1. device that detects electric power system phase sequence and warning, it is characterized in that: it is made up of phase sequence controller [1] and alarm [2], the three-phase input end of phase sequence controller [1] is connected on the three-phase supply of incoming line cabinet of step down side of low-voltage distribution system, or be connected on the three-phase supply of high pressure P T cabinet of high voltage supply network the output terminal device taking alarm [2] of phase sequence controller [1].
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200059740U CN201955400U (en) | 2011-01-11 | 2011-01-11 | Device for detecting phase sequence of power supply system and alarming |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200059740U CN201955400U (en) | 2011-01-11 | 2011-01-11 | Device for detecting phase sequence of power supply system and alarming |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201955400U true CN201955400U (en) | 2011-08-31 |
Family
ID=44499508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200059740U Expired - Fee Related CN201955400U (en) | 2011-01-11 | 2011-01-11 | Device for detecting phase sequence of power supply system and alarming |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201955400U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102426277A (en) * | 2011-09-09 | 2012-04-25 | 山东电力集团公司烟台供电公司 | Audible and visual alarm of load control terminal |
| CN109164307A (en) * | 2018-09-13 | 2019-01-08 | 南昌科晨电力试验研究有限公司 | A kind of distribution transformer phase sequence recognizer |
-
2011
- 2011-01-11 CN CN2011200059740U patent/CN201955400U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102426277A (en) * | 2011-09-09 | 2012-04-25 | 山东电力集团公司烟台供电公司 | Audible and visual alarm of load control terminal |
| CN109164307A (en) * | 2018-09-13 | 2019-01-08 | 南昌科晨电力试验研究有限公司 | A kind of distribution transformer phase sequence recognizer |
| CN109164307B (en) * | 2018-09-13 | 2020-07-07 | 南昌科晨电力试验研究有限公司 | Phase sequence identification algorithm for distribution transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110831 Termination date: 20170111 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |