CN203479953U - Alarming device for open circuit of current transformer - Google Patents
Alarming device for open circuit of current transformer Download PDFInfo
- Publication number
- CN203479953U CN203479953U CN201320630940.XU CN201320630940U CN203479953U CN 203479953 U CN203479953 U CN 203479953U CN 201320630940 U CN201320630940 U CN 201320630940U CN 203479953 U CN203479953 U CN 203479953U
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- Prior art keywords
- current transformer
- open circuit
- acoustic
- optic alarm
- diode
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- 238000004146 energy storage Methods 0.000 claims description 12
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007257 malfunction Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model relates to an alarming device for an open circuit of a current transformer. The alarming device comprises a sound-light alarming device working under a certain voltage. A first power supply connecting end of the sound-light alarming device is divided into two parts which are connected with two secondary terminals of the current transformer through first diodes; a second connecting end of the sound-light alarming device is also divided into two parts which are connected with two secondary terminals of the current transformer through second diodes. The device can alarm open circuit faults of the current transformer rapidly, accurately and intuitively.
Description
Technical field
The utility model relates to current mulual inductor malfunction reminding technology field, particularly a kind of current transformer open circuit warning device.
Background technology
In the prior art, for Current Transformer Secondary open circuit problem, the way conventionally adopting is artificial in-site measurement or protection device for installing, prevents from causing the person or device security problem after secondary circuit open circuit.But there is the problem that efficiency is low and security risk is large in artificial on-site measurement method.And open-circuit protecting device is installed, only solved the direct harm that open circuit causes, but the still state in cisco unity malfunction of rear equipment of opening a way does not have alarm set intuitively, fault is difficult to be processed in time.
Summary of the invention
The purpose of this utility model is to provide a kind of current transformer open circuit warning device, and this device can be fast, accurately, intuitively current transformer open fault is reported to the police.
For achieving the above object, the technical solution of the utility model is: a kind of current transformer open circuit warning device, comprise the acoustic-optic alarm that can work under certain voltage, the first power connector end of described acoustic-optic alarm divides two-way, through the first diode, be connected to respectively two secondary terminals of current transformer, the second source link of described acoustic-optic alarm also divides two-way, is connected to respectively two secondary terminals of described current transformer through the second diode.
Further, the positive pole of described the first diode is connected with the secondary terminals of current transformer, and negative pole is connected with acoustic-optic alarm; The negative pole of described the second diode is connected with the secondary terminals of current transformer, and positive pole is connected with acoustic-optic alarm.
Further, two power connector ends of described acoustic-optic alarm are parallel with for the energy-storage travelling wave tube of store electrical energy with for triggering the trigger of energy-storage travelling wave tube release electric energy.
The beneficial effects of the utility model are by open circuit warning device is installed on Current Transformer Secondary terminal, when current transformer generation open fault, can carry out quickly and accurately luminous and audible alarm, be convenient to tour personnel and find intuitively, in time current transformer open circuit abnormal conditions, thereby process in time open fault.
Accompanying drawing explanation
Fig. 1 is the circuit theory diagrams of the utility model embodiment.
Embodiment
Below in conjunction with drawings and the specific embodiments, the utility model is elaborated.
The utility model current transformer open circuit warning device, as shown in Figure 1, comprise the acoustic-optic alarm that can work under certain voltage, the first power connector end of described acoustic-optic alarm divides two-way, through the first diode, be connected to respectively two secondary terminals of current transformer, the second source link of described acoustic-optic alarm also divides two-way, is connected to respectively two secondary terminals of described current transformer through the second diode.
The positive pole of described the first diode is connected with the secondary terminals of current transformer, and negative pole is connected with acoustic-optic alarm; The negative pole of described the second diode is connected with the secondary terminals of current transformer, and positive pole is connected with acoustic-optic alarm.
Two power connector ends of described acoustic-optic alarm are parallel with for the energy-storage travelling wave tube of store electrical energy with for triggering the trigger of energy-storage travelling wave tube release electric energy.This warning device also comprises the energy storage trigger circuit that consist of above-mentioned energy-storage travelling wave tube and trigger, when open circuit of secondary loop of current transformer, warning device obtains certain operating voltage, energy-storage travelling wave tube progressively carries out energy storage, when enough driving acoustic-optic alarm work is arrived in energy energy storage, trigger triggers the energy that energy-storage travelling wave tube discharges storage, drives luminous and sound circuit working, sends prompting light and audible alert.
The utility model is installed acoustic-optic alarm on current transformer lead-out terminal, when current transformer is during in normal operating conditions, the voltage at lead-out terminal two ends is very low, and acoustic-optic alarm is not worked, also current sinking not simultaneously, can not affect the measurement performance of current transformer.When open circuit of secondary loop of current transformer, now secondary circuit will produce higher voltage, and acoustic-optic alarm obtains working power, enters duty, intermittence is sent flash for prompting and audible alarm, is convenient to tour personnel and finds that in time current transformer open circuit is abnormal.This warning device utilizes diode when surpassing forward voltage, just to understand the characteristic of Absorption Current, and assurance current transformer is not worked at normal operating conditions alarm device, and warning device does not impact the performance of current transformer.When current transformer is opened a way, secondary loop of mutual inductor output high voltage, the electric energy that warning device obtains after diode rectification carries out work.
Be more than preferred embodiment of the present utility model, all changes of doing according to technical solutions of the utility model, when the function producing does not exceed the scope of technical solutions of the utility model, all belong to protection domain of the present utility model.
Claims (3)
1. current transformer open circuit warning device, it is characterized in that: comprise the acoustic-optic alarm that can work under certain voltage, the first power connector end of described acoustic-optic alarm divides two-way, through the first diode, be connected to respectively two secondary terminals of current transformer, the second source link of described acoustic-optic alarm also divides two-way, is connected to respectively two secondary terminals of described current transformer through the second diode.
2. a kind of current transformer open circuit warning device according to claim 1, is characterized in that: the positive pole of described the first diode is connected with the secondary terminals of current transformer, and negative pole is connected with acoustic-optic alarm; The negative pole of described the second diode is connected with the secondary terminals of current transformer, and positive pole is connected with acoustic-optic alarm.
3. a kind of current transformer open circuit warning device according to claim 1, is characterized in that: two power connector ends of described acoustic-optic alarm are parallel with for the energy-storage travelling wave tube of store electrical energy with for triggering the trigger of energy-storage travelling wave tube release electric energy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320630940.XU CN203479953U (en) | 2013-10-14 | 2013-10-14 | Alarming device for open circuit of current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320630940.XU CN203479953U (en) | 2013-10-14 | 2013-10-14 | Alarming device for open circuit of current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203479953U true CN203479953U (en) | 2014-03-12 |
Family
ID=50228261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320630940.XU Expired - Fee Related CN203479953U (en) | 2013-10-14 | 2013-10-14 | Alarming device for open circuit of current transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203479953U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105092940A (en) * | 2015-07-07 | 2015-11-25 | 国网上海市电力公司 | Alarming device for the electrification of a current transformer secondary circuit |
| CN105785220A (en) * | 2016-05-16 | 2016-07-20 | 国网山东省电力公司滨州供电公司 | Open-circuit prompting circuit and device for power system secondary loop regular checking assistance |
| CN113588993A (en) * | 2021-06-10 | 2021-11-02 | 华能嘉祥发电有限公司 | Device and method for replacing ammeter on line |
-
2013
- 2013-10-14 CN CN201320630940.XU patent/CN203479953U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105092940A (en) * | 2015-07-07 | 2015-11-25 | 国网上海市电力公司 | Alarming device for the electrification of a current transformer secondary circuit |
| CN105092940B (en) * | 2015-07-07 | 2018-09-28 | 国网上海市电力公司 | A kind of secondary loop of mutual inductor electrification alarming device |
| CN105785220A (en) * | 2016-05-16 | 2016-07-20 | 国网山东省电力公司滨州供电公司 | Open-circuit prompting circuit and device for power system secondary loop regular checking assistance |
| CN105785220B (en) * | 2016-05-16 | 2018-05-08 | 国网山东省电力公司滨州供电公司 | A kind of secondary loop in power system regular inspection auxiliary open circuit alert circuit and device |
| CN113588993A (en) * | 2021-06-10 | 2021-11-02 | 华能嘉祥发电有限公司 | Device and method for replacing ammeter on line |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140312 Termination date: 20201014 |