CN210181203U - Mutual inductor field test protection device and equipment - Google Patents
Mutual inductor field test protection device and equipment Download PDFInfo
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- CN210181203U CN210181203U CN201920782449.6U CN201920782449U CN210181203U CN 210181203 U CN210181203 U CN 210181203U CN 201920782449 U CN201920782449 U CN 201920782449U CN 210181203 U CN210181203 U CN 210181203U
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Abstract
The utility model relates to a mutual-inductor field test protection device and equipment, wherein, mutual-inductor field test protection device includes: the detection device is used for outputting a detection signal when detecting a specific behavior action of a person; and the signal generating device is electrically connected with the detection device, is also used for being electrically connected with a power supply controller on a test site, and is used for outputting a power-off trigger signal to the power supply controller when receiving the detection signal, wherein the power-off trigger signal is used for indicating the power supply controller to cut off a power supply. The utility model discloses when detecting people's specific action through detecting device, to signal generation device output detection signal, signal generation device is when receiving detection signal, and output outage trigger signal to electrical source controller instructs electrical source controller to cut off power supply to avoid staff or mistake to go into the person and get into the high-tension apparatus test area who is in charged state, prevent to electrocute danger.
Description
Technical Field
The utility model relates to a mutual-inductor test technical field especially relates to a mutual-inductor field test protection device and equipment.
Background
The high-voltage large-current electric energy metering device of a power plant and a transformer substation and the electric energy metering device of a large user are related to the benefits of power generation, power transmission, power supply and multiple users. In order to ensure accurate measurement, the current transformer and the voltage transformer must be tested according to the electric energy metering device test rules and the electric energy metering device technical management rules.
However, the staff in the test site needs to frequently move, so that the electric shock danger exists, and when the staff has problems in the middle of the test, the staff needs to enter the site test area for processing, and the staff easily forgets to cut off the power supply and then enters the high-voltage area, or because the staff forgets to cut off the power supply when leaving, the high-voltage equipment is still electrified, so that the electric shock of the staff or a person who enters the high-voltage equipment by mistake can be caused.
SUMMERY OF THE UTILITY MODEL
Based on this, it is necessary to provide a mutual inductor field test protection device and equipment.
An instrument transformer field test protection device, comprising:
the detection device is used for outputting a detection signal when detecting a specific behavior action of a person;
and the signal generating device is electrically connected with the detection device, is also used for being electrically connected with a power supply controller on a test site, and is used for outputting a power-off trigger signal to the power supply controller when receiving the detection signal, wherein the power-off trigger signal is used for indicating the power supply controller to cut off a power supply.
In one embodiment, the detection device comprises a contact sensor, and the detection signal is a first detection signal;
the contact sensor is arranged on the seat of the worker and used for outputting a first detection signal when the state is changed from the state of contact with the worker to the non-contact state, and the detection signal comprises a first detection signal.
In one embodiment, the detection device comprises an infrared detector, and the detection signal is a second detection signal;
and the infrared detector is arranged at the periphery of the test area and used for outputting a second detection signal when a person is detected.
In one embodiment, the field test protection device for the mutual inductor further comprises:
and the support frame is used for fixedly mounting the infrared detector.
In one embodiment, the support is a retractable support.
In one embodiment, the infrared detectors are arranged at one or more monitoring points on the test site, and the number of the monitoring points is the same as that of the infrared detectors.
In one embodiment, the number of the infrared detectors is four, and the infrared detectors are correspondingly arranged at the monitoring points one by one.
In one embodiment, the field test protection device for the mutual inductor further comprises:
and the alarm device is arranged on the support frame, is electrically connected with the infrared detector and is used for triggering alarm when receiving the second detection signal.
A transformer field test apparatus comprising:
the power supply controller is used for controlling the on-off of the power supply;
the tested mutual inductor is electrically connected with the power supply controller;
the standard mutual inductor is electrically connected with the power supply controller;
the transformer calibration device is electrically connected with the power supply controller, the tested transformer and the standard transformer;
and the mutual inductor field test protection device is in communication connection with the power supply controller through the signal generation device.
In one embodiment, the instrument transformer field test apparatus further comprises:
and the booster or the current booster is electrically connected with the tested mutual inductor and the power supply controller.
According to the mutual inductor field test protection device and equipment, when the detection device detects specific actions of people, the detection signal is output to the signal generation device, when the signal generation device receives the detection signal, the power-off trigger signal is output to the power supply controller, the power supply controller is instructed to cut off the power supply, so that a worker or a person entering the high-voltage equipment field test area in a charged state is avoided, and electric shock danger is prevented.
Drawings
FIG. 1 is a schematic structural diagram of a field test protection device of a mutual inductor in one embodiment;
FIG. 2 is a schematic structural diagram of a field test protection device of the mutual inductor in another embodiment;
FIG. 3 is a schematic structural diagram of a field test protection device of a transformer in a further embodiment;
FIG. 4 is a schematic diagram of the mechanism of the field test protection device of the mutual inductor with two detection devices in one embodiment;
FIG. 5 is a schematic diagram of the construction of a transformer field test apparatus in one embodiment;
fig. 6 is a schematic structural diagram of a transformer field test protection device with an alarm device in one embodiment.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully below. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
In one embodiment, a field test protection device for a transformer, as shown in fig. 1, includes:
a detection device 100 for outputting a detection signal when a specific behavior motion of a person is detected;
the signal generating device 200 is electrically connected with the detecting device 100, is also used for being in communication connection with a power supply controller 600 on a test site, and is used for outputting a power-off trigger signal to the power supply controller 600 when receiving the detection signal, and the power supply controller 600 cuts off the power supply when receiving the power-off trigger signal.
The specific action is an action that can be detected by the detection device 100 and can determine that a person may enter a dangerous area of the test site, for example, the person may approach the test site, be far away from the position of the detection device 100, or enter the detection area of the detection device 100. The detection device 100 outputs a detection signal to the signal generation device 200 when detecting a specific behavioral action of the person, and in some embodiments the detection signal may be a voltage signal, a current signal, or other form of signal, depending on the type of the detection device 100. The signal generating device 200 receiving the detection signal outputs a power-off trigger signal to the power controller 600 for controlling the power supply of the test site, so that the power controller 600 cuts off the power supply of the test site, the equipment of the test site is not electrified, and the electric shock accident is avoided.
The utility model discloses a detection device 100 is when detecting people's specific action, to signal generation device 200 output detection signal, and signal generation device 200 is when receiving detection signal, and output outage trigger signal to electrical source controller 600 instructs electrical source controller 600 to cut off power supply to avoid staff or mistake person of going into to get into the high-tension apparatus test area who is in electrified state, prevent to electrocute danger. Under some circumstances, can also avoid simultaneously that the toy mistake goes into the high tension apparatus test electrified region and causes the electric shock to and avoid the equipment damage that arouses because of the electric shock accident.
In one embodiment, as shown in fig. 2, the detecting device 100 includes a contact sensor 110, wherein the detecting signal is a first detecting signal;
the contact sensor is arranged on the seat of the worker and used for outputting a first detection signal when the state is changed from a state of contact with the worker to a non-contact state.
In one embodiment, the contact sensor 110 may be a pressure sensor, and may be capable of recognizing whether a worker is seated on the worker seat, and outputting a first detection signal when the worker is recognized to leave the worker seat, wherein the first detection signal is an electrical signal converted by the pressure sensor when the pressure sensor is subjected to pressure. The signal generating device 200 is electrically connected to the contact sensor 110, and outputs a power-off trigger signal, which may be a voltage signal or a current signal, to the power controller 600 upon receiving the first detection signal. In one embodiment, the power controller 600 includes an MCU, a PLC, or a logic circuit capable of controlling the power to be turned off when receiving the first power-off trigger signal. The selection of the first signal generator 210 can be selected by those skilled in the art according to specific needs, and is not limited herein.
In one embodiment, as shown in fig. 3, the detecting device 100 includes an infrared detector 120, and the detecting signal is a second detecting signal;
and the infrared detector is arranged at the periphery of the test area and used for outputting a second detection signal when a person is detected.
In one embodiment, the infrared detector 120 may be a thermal infrared detector or an active infrared intrusion detector including an infrared transmitter and an infrared receiver, and in one embodiment, the infrared detector 120 is a thermal infrared detector, and when a biological thermal infrared signal is detected, an output signal of the thermoelectric element is converted into a second detection signal in the form of a voltage signal and output to the signal generating device 200. In one embodiment, the infrared detector 120 is an active infrared intrusion detector, and transmits an infrared beam to the infrared receiver through an infrared transmitter, and when the infrared beam is completely blocked or blocked according to a preset percentage, the infrared beam is converted into a second detection signal in the form of a voltage signal and is output to the signal generation device 200, and when the signal generation device 200 receives the second detection signal, the signal generation device outputs a power-off trigger signal to the power controller 600, where the power-off trigger signal may be a voltage signal or a current signal, and the power controller 600 controls the power supply to be turned off when receiving the power-off trigger signal.
When someone enters the monitoring range of the infrared detector, the power supply is cut off, and electric shock accidents caused by the fact that workers or non-workers enter the electrified field test area by mistake are avoided.
In one embodiment, as shown in fig. 4, the detecting device 100 includes a contact sensor 110 and an infrared detector 120, which can cut off the power when the worker leaves the seat, and can also ensure that the power is cut off when someone enters the seat by mistake, so as to avoid contact accidents caused by the fact that the worker does not see the person entering the seat by mistake and performs power-off treatment or reminding.
In one embodiment, as shown in fig. 5, the field test protection device for a transformer further includes:
and a support 300 for fixedly mounting the infrared detector 120.
In one embodiment, the number of the support frames 300 is not less than the number of the infrared detectors 120, and the infrared detectors 120 are respectively arranged around the mutual inductor test site, so that the infrared detectors 120 are fixed on the support frames to form an infrared monitoring area, and people are prevented from entering the test site by mistake.
Because the mutual inductor that carries out the experiment needs the test area size according to the difference of voltage class and is different, adopt the base support frame that portable, adjustable height and direction, can adjust according to on-the-spot actual conditions, adapt to different experimental sites.
In one embodiment, the support is a retractable support.
The height of the infrared detector 120 can be adjusted by the telescopic support frame according to the requirements of different test sites, and in one embodiment, the direction of the infrared detector 120 can be adjusted, so that an infrared region can be conveniently set for monitoring.
In one embodiment, the infrared detectors 120 are disposed at one or more monitoring points on the test site, and the number of the monitoring points is the same as that of the infrared detectors.
And setting corresponding monitoring points according to the actual conditions of dangerous areas of the test site, so that the infrared detectors arranged at the corresponding monitoring points can cover all entrances or areas entering or approaching the test site.
In one embodiment, the number of the infrared detectors 120 is four, and the infrared detectors are correspondingly arranged at the monitoring points one by one.
In order to surround the dangerous area of the test site as much as possible, four monitoring points can be arranged on the periphery of the dangerous area of the test site, and an infrared detector is arranged at each monitoring point to cover all passages entering the dangerous area of the test site, so that the monitoring reliability is ensured.
In one embodiment, each infrared detector 120 includes an infrared transmitter and an infrared receiver.
The first infrared transmitter transmits infrared beams to the first infrared receiver, the second infrared transmitter transmits infrared beams to the second infrared receiver, the third infrared transmitter transmits infrared beams to the third infrared receiver, the fourth infrared transmitter transmits infrared beams to the fourth infrared receiver, a closed quadrilateral infrared region is formed among the four infrared detectors, once a person walks between the two monitoring points, the infrared receiver shielded from the infrared beams transmits second detection signals to the signal generating device 200, and therefore the power supply controller 600 cuts off a power supply.
It should be noted that fig. 5 is a schematic diagram of the infrared emission direction in only one embodiment, and the positions of the infrared emitter and the infrared receiver may be interchanged, so that the infrared beam emission direction is the opposite direction to that in fig. 5. In addition, the position of the signal generator 200 shown in fig. 5 is also only a schematic diagram of one embodiment, and in some embodiments, the signal generator may also be disposed on the supporting rod or disposed at other positions.
In one embodiment, as shown in fig. 6, the field test protection device for the transformer further includes:
and the alarm device 400 is mounted on the support frame, electrically connected with the infrared detector 120, and used for triggering an alarm when receiving the second detection signal.
When infrared detector 120 outputs the second detection signal, alarm device 400 also can receive the second detection signal, report to the police when alarm device 400 receives the second detection signal, indicate that the staff has the mistake to go into the test scene, in some embodiments, alarm device 400 includes audible alarm and light alarm, can add sound or light through light and add voice alarm, indicate that the mistake goes into this region danger of person, avoid because the staff can't take into account the accident that the mistake led to the fact into the person.
In one embodiment, the instrument transformer field test protection device further comprises a signal receiver electrically connected with the power supply controller 600 and used for receiving the detection signal output by the signal generating device 200. The reliability of signal transmission can be improved, and in some cases, the signal generating device may be far away from the power controller 600, and remote communication is realized by additionally arranging a signal receiver.
In one embodiment, as shown in fig. 5, a transformer field test apparatus includes:
a power controller 600 for controlling the on/off of the power;
the tested transformer 710 is electrically connected with the power supply controller;
the standard mutual inductor 720 is electrically connected with the power supply controller;
the transformer checking device 730 is electrically connected with the power controller, the tested transformer and the standard transformer;
the transformer field test protection device 800 is provided, wherein the signal transmitting device 200 is in communication connection with the power supply controller 600.
The power supply controller 600 is used for controlling a power supply of a test site, the tested mutual inductor 710, the standard mutual inductor 720, the mutual inductor verifying device 730 and the mutual inductor field test protecting device 800 are connected with the power supply, the tested mutual inductor 710 can be verified through the mutual inductor verifying device 730 and the standard mutual inductor 720, the mutual inductor field test protecting device 800 can output a power-off triggering signal to the power supply controller 600 when the characteristic behavior action of a person is detected, namely the person possibly approaches to or enters a dangerous area of the test site, so that the power supply controller 600 cuts off the power supply, and accidents are avoided. In some embodiments, the transformer field test protection device 800 may further form an infrared monitoring area around the transformer, and if a person enters the transformer by mistake, output a second power-off trigger signal to the power controller 600, so that the power controller 600 cuts off the power supply. In some embodiments, the transformer field test protection device 800 can also give an alarm through the alarm device 400 when someone enters the test field by mistake, so as to prompt a worker or a person entering the test field by mistake, and avoid accidents.
In one embodiment, the tested transformer 710 is a current transformer or a voltage transformer.
The utility model discloses can be applied to in the field test to two kinds of different grade type mutual-inductors of current transformer or voltage transformer.
In one embodiment, the instrument transformer field test apparatus further comprises:
and the booster or the current booster is electrically connected with the tested mutual inductor 710 and the power controller 600.
If the tested mutual inductor is a current mutual inductor, the mutual inductor field test equipment also comprises a current booster; if the tested mutual inductor is a voltage mutual inductor, the mutual inductor field test equipment further comprises a booster. Since the tested transformers to be tested are all high-voltage devices, the current or voltage input to the tested transformer 710 through the power controller 600 needs to be boosted or boosted through the current booster or the voltage booster.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. The utility model provides a mutual-inductor field test protection device which characterized in that includes:
the detection device is used for outputting a detection signal when detecting a specific behavior action of a person;
and the signal generating device is electrically connected with the detection device, is also used for being in communication connection with a power supply controller on a test site, and is used for outputting a power-off trigger signal to the power supply controller when receiving the detection signal, wherein the power-off trigger signal is used for indicating the power supply controller to cut off a power supply.
2. Mutual inductor field test protection device according to claim 1,
the detection device comprises a contact sensor, and the detection signal is a first detection signal;
the contact sensor is arranged on the seat of the worker and used for outputting the first detection signal when the state is changed from the state of contact with the worker to the non-contact state.
3. Mutual inductor field test protection device according to claim 1,
the detection device comprises an infrared detector, and the detection signal is a second detection signal;
the infrared detector is arranged on the periphery of the test area and used for outputting the second detection signal when a person is detected.
4. The instrument transformer field test protection device of claim 3, further comprising:
and the support frame is used for fixedly mounting the infrared detector.
5. Mutual inductor field test protection device according to claim 4,
the support frame is a telescopic support frame.
6. Mutual inductor field test protection device according to claim 3,
the infrared detectors are arranged at monitoring points of the test site, the number of the monitoring points is one or more, and the number of the infrared detectors is the same as that of the monitoring points.
7. Mutual inductor field test protection device according to claim 6,
the number of the infrared detectors is four, and the infrared detectors are correspondingly arranged at the monitoring points one by one.
8. The instrument transformer field test protection device of claim 4, further comprising:
and the alarm device is arranged on the support frame, is electrically connected with the infrared detector and is used for triggering alarm when receiving the second detection signal.
9. A transformer field test apparatus, comprising:
the power supply controller is used for controlling the on-off of the power supply;
the tested mutual inductor is electrically connected with the power supply controller;
the standard mutual inductor is electrically connected with the power supply controller;
the transformer checking device is electrically connected with the power supply controller, the tested transformer and the standard transformer;
the instrument transformer field test protection device of any one of claims 1 to 8, being in communication with the power supply controller through the signal generating device.
10. The instrument transformer field test device of claim 9, further comprising:
and the booster or the current booster is electrically connected with the tested mutual inductor and the power supply controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920782449.6U CN210181203U (en) | 2019-05-28 | 2019-05-28 | Mutual inductor field test protection device and equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920782449.6U CN210181203U (en) | 2019-05-28 | 2019-05-28 | Mutual inductor field test protection device and equipment |
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| Publication Number | Publication Date |
|---|---|
| CN210181203U true CN210181203U (en) | 2020-03-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920782449.6U Active CN210181203U (en) | 2019-05-28 | 2019-05-28 | Mutual inductor field test protection device and equipment |
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|---|---|
| CN (1) | CN210181203U (en) |
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- 2019-05-28 CN CN201920782449.6U patent/CN210181203U/en active Active
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