CN202631672U - Portable detector for indicator with short-circuit and grounding fault - Google Patents
Portable detector for indicator with short-circuit and grounding fault Download PDFInfo
- Publication number
- CN202631672U CN202631672U CN 201220107055 CN201220107055U CN202631672U CN 202631672 U CN202631672 U CN 202631672U CN 201220107055 CN201220107055 CN 201220107055 CN 201220107055 U CN201220107055 U CN 201220107055U CN 202631672 U CN202631672 U CN 202631672U
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- power supply
- current sensor
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- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
- Locating Faults (AREA)
Abstract
The utility model discloses a portable detector for an indicator with short-circuit and grounding faults, comprising a detector host, and a power supply unit, an inverter and a current booster arranged in the detector host. The power supply unit comprises a power supply, a power switch and a voltmeter connected to the power supply through the power switch; a grounding current sensor is connected between the inverter and the current booster; the inverter is connected to a monostable trigger controller, a trigger button and a relay to form a loop; the current booster is also connected to a short-circuit current sensor; the detector host comprises a housing, an operation unit and a determination indicating unit; the grounding current sensor and the short-circuit current sensor are respectively connected to the determination indicating unit; the operation unit is arranged on the panel of the housing; and the operation unit comprises a grounding test rack and a short-circuit test rack. Once the detector is employed, the fault of an indicator can be directly detected in daily tour inspection, a display with a fault is not necessary to be sent to a manufacturer for inspection, the work efficiency of daily tour inspection is raised, and manpower and material resources are saved.
Description
Technical field
The utility model relates to the electric power detection range, is specifically related to a kind of detector of indicator.
Background technology
When power equipment detects, the zone that broad, geographic position relatively disperse in the power supply compass of competency, except daily walkaround inspection, the case change is broken down or problem, mainly leans on the fault detector of installing in the case change.
Electric power line fault indicator is to be used to detect and whether the discriminating user power circuit produces a kind of signal meter (SM) of fault.Its principle of work is; When power circuit broke down, electric parameter can change in the circuit, the variation that around power circuit, produces magnetic field and electric field; The wiring board of feeder line fault sensor internal detects and the failure judgement state automatically; And then output alarm signal is transferred to the fault detector main frame, and the fault detector main frame carries out detection calculations and makes corresponding judgement after receiving alerting signal, and then drives indicating section work; Through showing that various colors reaches the effect of caution, thus the indication fault circuit.
Fault detector is the distribution line failure on-line monitoring system, and this characteristics of product is by the fault detect terminal, through optical fiber, with probe clip on threephase cable.When line failure (short trouble, earth fault, end finger of a specified duration show) can be distinguished at once.These fault detectors itself can't verification, must deliver to manufacturer.When fault detector itself breaks down, to deliver to producer's maintenance process especially, this has brought very big inconvenience for daily testing.
The utility model content
The technical matters that the utility model will solve is, a kind of directly instrument of detection failure indicator is provided, at the scene can the fast detecting fault detector.It is easy to carry, and is suitable for using at the scene and testing, and shortens the daily testing time, increases work efficiency.
The technical scheme of the utility model is, portable short circuit, earth-fault indicator detector comprise power supply and the power switch that is attached thereto, and said detector comprises the detector main frame, power supply unit, inverter and current lifting device in the detector main frame;
Said power supply is connected with a voltage table through power switch, and said power supply, power switch and voltage table constitute power supply unit; Be connected with the ground current sensor between said inverter and the current lifting device, said inverter and monostable trigger controller, trigger button and relay and connect into the loop; The other end of said current lifting device is connected with the short-circuit current sensor;
Said detector main frame comprises shell, operating unit and judgement indicating member, and said ground current sensor is connected with said judgement indicating member respectively with the short-circuit current sensor; Said operating unit places on the panel of shell, comprises respectively the earth test frame and the short-circuit test frame that are connected with the short-circuit current sensor with said ground current sensor.
Wherein, said power supply is an accumulator.
Wherein, said shell comprises the handle of housing and surface of shell.
Perhaps, said shell comprises housing and the portable chamber installation of being convenient to that is enclosed within outside the housing.
Wherein, said operating unit also comprises a test starting button and a power switch button.Two buttons are connected with the respective switch of inboard respectively.
Further, said operating unit also comprises supply socket.
The utility model advantage compared with prior art is: this portable short circuit, earth-fault indicator detector are easy to carry, safe and reliable.Adopted after this detector, when daily walkaround inspection, can directly check the failure condition of fault detector, do not needed to send producer's inspection in addition, improved the work efficiency of daily walkaround inspection, saved manpower and materials fault detector.
Description of drawings
Fig. 1 is the detector host panel structural representation of the utility model.
Fig. 2 is the electrical schematic diagram of the portable short circuit of the utility model, earth-fault indicator detector.
Among the figure, 1-supply socket, 2-power light, 3-power switch, 4-short-circuit test frame, 5-electric current action indicator, 6-testing button, 7-earth test frame, 8-handle.
The 21-voltage table, the 22-power supply, the 23-monostable triggers controller, 24-inverter, 25-ground current sensor, 26-current lifting device, 27-short-circuit current sensor, the big electric current of 28-(1000A) loop wire, K1-power switch, K2-trigger button, J1-relay.
Embodiment
Describe in further detail below in conjunction with the specific embodiment of accompanying drawing the utility model.
See Fig. 1 and Fig. 2, portable short circuit, the earth-fault indicator detector of the utility model comprise the detector main frame, power supply unit, DC/AC inverter 24 and current lifting device 26 in the detector main frame.The voltage table 21 that said power supply unit comprises power supply 22 and the power switch K1 that is attached thereto, is connected with power supply through said power switch; Be connected with ground current sensor 25 between said inverter 24 and the current lifting device 26, said inverter 24 triggers controller 23, trigger button K2 and relay J 1 with monostable and connects into the loop; The other end of said current lifting device 26 is connected with short-circuit current sensor 27, and big electric current (1000A) loop wire 28 links together short-circuit current sensor 27 and current lifting device 26.
The detector main frame comprises shell, operating unit and judgement indicating member, and said ground current sensor 25 is connected with said judgement indicating member respectively with short-circuit current sensor 27; Said operating unit places on the panel of shell, comprises respectively earth test frame and short-circuit test frame with said ground current sensor and short-circuit current sensor.The panel of detector main frame is as shown in Figure 1, comprises supply socket 1, power light 2, and power switch 3, short-circuit test frame 4, electric current action indicator 5, testing button 6, earth test frame 7 and handle 8 are mounted with handle and help being convenient for carrying on the housing.Two pilot lamp are formed the judgement indicating member, and corresponding button and earth test frame 7 are operating unit with short-circuit test frame 4.
Power supply can adopt accumulator, also can adopt external power supply, adopts accumulator to be convenient for carrying.Accumulator provides 12V power supply through switch to detector, and when K switch 1 is closed (when pressing power switch 3), whether voltage table indication 12V voltage is sufficient, if need charge a battery in advance when inadequate.One the road supplies with DC/AC inverter 24, inverter 24 output AC 220V voltages; Monostable trigger control circuit 23 is supplied with on another road, and when pressing the K2 switch, monostable trigger control circuit 23 produces the square wave of an about 200ms, after internal drive circuits makes relay J 1 adhesive 200ms, discharges.Inverter output AC 220V voltage is connected through the input end of relay J 1 with the 1000A current lifting device, connects once when the contact of J1, and current lifting device can be responded to the big electric current that once exchanges the output 200ms duration.(simulating the above short-circuit current of 1000A one time) is installed in short-circuit current Sensor Analog Relay System actual condition in the big electric current loop; When the short-circuit current of 1000A, 200ms passes through; Sensor should have an induced signal to output to indicating instrument, and the electric current action indicator 5 on the panel of instrument has the flashing signal indication.
Ground current is less; Be installed in the ground current sensor in the primary return of current lifting device by actual applying working condition; When the 200ms electric current took place, primary current should have 15-20A, after grounding sensor receives this current signal; Convert the receiving end that an electric signal or light signal are input to instrument to, electric current action indicator 5 flickers on the panel of instrument.
When detection finishes, answer the power cutoff switch, when the electric weight deficiency should in time be charged.
The principle of the portable short circuit of the utility model, earth-fault indicator Characteristics Detection appearance is:
(1) accumulator provides 12V power supply through switch to detector, and when K switch 1 was closed, whether voltage table indication 12V voltage was sufficient, if need charge a battery in advance when inadequate.
(2) 12V power supply one road is supplied with DC/AC inverter, inverter output AC 220V voltage; The monostable trigger control circuit is supplied with on another road, and when pressing the K2 switch, the monostable trigger control circuit produces the square wave of an about 200ms, after internal drive circuits makes relay J 1 adhesive 200ms, discharges.
(3) inverter output AC 220V voltage is connected through the input end of relay J 1 with the 1000A current lifting device, connects once when the contact of J1, and current lifting device can be responded to the big electric current that once exchanges the output 200ms duration.(simulating the above short-circuit current of 1000A one time)
(4) short-circuit current Sensor Analog Relay System actual condition is installed in the big electric current loop; When the short-circuit current of 1000A, 200ms passes through; Sensor should have an induced signal to output to indicating instrument, and the flashing signal of the short circuit action of corresponding this phase should be arranged on the panel of instrument.
(5) ground current is less; Be installed in the ground current sensor in the primary return of current lifting device by actual applying working condition; When the 200ms electric current took place, primary current should have 15-20A, after grounding sensor receives this current signal; Should convert the receiving end that an electric signal or light signal are input to instrument to, on the panel of instrument the ground signalling flasher should be arranged.
(6) finish when detection, answer the power cutoff switch,, should in time charge the phenomenon of the undercurrent 1000A that is short-circuited when preventing to test when the electric weight deficiency in order to avoid that unnecessary discharge causes electric weight is not enough.
In another embodiment, do not have handle on the host panel, can be arranged to the handled portable casing of a tyre, this detector is put in wherein, be easy to carry.
Adopted after this detector, when daily walkaround inspection, can directly check the failure condition of fault detector, do not needed to send producer's inspection in addition, improved the work efficiency of daily walkaround inspection, saved manpower and materials fault detector.
Claims (6)
1. portable short circuit, earth-fault indicator detector comprise power supply and the power switch that is attached thereto, and it is characterized in that: said detector comprises the detector main frame, power supply unit, inverter and current lifting device in the detector main frame;
Said power supply is connected with a voltage table through power switch, and said power supply, power switch and voltage table constitute power supply unit; Be connected with the ground current sensor between said inverter and the current lifting device, said inverter and monostable trigger controller, trigger button and relay and connect into the loop; The other end of said current lifting device is connected with the short-circuit current sensor;
Said detector main frame comprises shell, operating unit and judgement indicating member, and said ground current sensor is connected with said judgement indicating member respectively with the short-circuit current sensor; Said operating unit places on the panel of shell, comprises respectively the earth test frame and the short-circuit test frame that are connected with the short-circuit current sensor with said ground current sensor.
2. portable short circuit according to claim 1, earth-fault indicator detector is characterized in that said power supply is an accumulator.
3. portable short circuit according to claim 1, earth-fault indicator detector is characterized in that said shell comprises the handle of housing and surface of shell.
4. portable short circuit according to claim 1, earth-fault indicator detector is characterized in that said shell comprises housing and the portable chamber installation of being convenient to that is enclosed within outside the housing.
5. portable short circuit according to claim 1, earth-fault indicator detector is characterized in that said operating unit also comprises a test starting button and a power switch button.
6. according to claim 1 or 5 described portable short circuits, earth-fault indicator detector, it is characterized in that said operating unit also comprises supply socket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220107055 CN202631672U (en) | 2012-03-20 | 2012-03-20 | Portable detector for indicator with short-circuit and grounding fault |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220107055 CN202631672U (en) | 2012-03-20 | 2012-03-20 | Portable detector for indicator with short-circuit and grounding fault |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202631672U true CN202631672U (en) | 2012-12-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220107055 Expired - Lifetime CN202631672U (en) | 2012-03-20 | 2012-03-20 | Portable detector for indicator with short-circuit and grounding fault |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202631672U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104111433A (en) * | 2014-07-16 | 2014-10-22 | 云南电力试验研究院（集团）有限公司电力研究院 | Device for detecting motion performances of earth fault indicator |
| CN106526414A (en) * | 2016-10-14 | 2017-03-22 | 国家电网公司 | Power distribution network's low voltage fault detection instrument and detection method |
| CN106896335A (en) * | 2015-12-21 | 2017-06-27 | 浙江科畅电子有限公司 | A kind of portable thread line fault indicator tester |
| CN107037256A (en) * | 2017-03-31 | 2017-08-11 | 中广核核电运营有限公司 | Ground detection device |
| CN107063303A (en) * | 2017-04-01 | 2017-08-18 | 陕西法士特齿轮有限责任公司 | A kind of electronic odometer sensor signal detection instrument |
-
2012
- 2012-03-20 CN CN 201220107055 patent/CN202631672U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104111433A (en) * | 2014-07-16 | 2014-10-22 | 云南电力试验研究院（集团）有限公司电力研究院 | Device for detecting motion performances of earth fault indicator |
| CN104111433B (en) * | 2014-07-16 | 2016-09-28 | 云南电力试验研究院（集团）有限公司电力研究院 | A kind of detection device of earth-fault indicator performance |
| CN106896335A (en) * | 2015-12-21 | 2017-06-27 | 浙江科畅电子有限公司 | A kind of portable thread line fault indicator tester |
| CN106526414A (en) * | 2016-10-14 | 2017-03-22 | 国家电网公司 | Power distribution network's low voltage fault detection instrument and detection method |
| CN107037256A (en) * | 2017-03-31 | 2017-08-11 | 中广核核电运营有限公司 | Ground detection device |
| CN107063303A (en) * | 2017-04-01 | 2017-08-18 | 陕西法士特齿轮有限责任公司 | A kind of electronic odometer sensor signal detection instrument |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121226 |