CN105259441A - Detection apparatus and method for switchgear primary equipment arc light warning and protection device - Google Patents
Detection apparatus and method for switchgear primary equipment arc light warning and protection device Download PDFInfo
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- CN105259441A CN105259441A CN201510695857.4A CN201510695857A CN105259441A CN 105259441 A CN105259441 A CN 105259441A CN 201510695857 A CN201510695857 A CN 201510695857A CN 105259441 A CN105259441 A CN 105259441A
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Abstract
The invention relates to a detection apparatus and method for a switchgear primary equipment arc light warning and protection device, and belongs to the technical field of arc light detection and inspection in power equipment. The detection apparatus comprises a test unit (1), a current unit (9) for generating a current required for detection, and an arc light unit (8). A current output port (10) of the test unit is connected to an input end of the current unit; a light source output port (11) of the test unit is connected to a visible light source (12) and a UV light source (13) of the arc light unit; the other sides, opposite to the visible light source and the UV light source, of the arc light unit are provided with a standard arc light probe placement portion (5) and a to-be-detected arc light probe placement portion (7); the standard arc light probe placement portion is provided internally with a standard arc light probe (6); the standard arc light probe is connected to an arc light probe access port (2) of the test unit; and the test unit is further provided with a binary input access port (4). The invention has the advantages of simple structure, easy operation and accurate detection, and can be used for effectively ensuring the safety operation and power supply reliability of power supply system equipment.
Description
Technical field
The present invention relates to a kind of checkout equipment for the arc light early warning of switch cabinet one-time equipment and protective device and method, belong to arc light inspection technology field in power equipment.
Background technology
Because the arc light early warning of switch cabinet one-time equipment and protective device can improve the reliability of substation equipment safe operation; effectively can prevent the generation of all kinds of accident; the problems such as the customer power supply interruption that accident can be avoided to cause and the personal injury of staff; therefore, the early warning of switch cabinet one-time equipment arc light and protective device are widely used in national grid industry.But along with the application of the arc light early warning of switch cabinet one-time equipment and protective device, in the formulation of electric power country and industry standard, a kind of work completely newly is also become to the inspection of the arc light early warning of switch cubicle primary equipment and protective device.
Summary of the invention
According to above deficiency of the prior art; the problem to be solved in the present invention is: provide a kind of structure simple; easy to operate; detect accurately, effectively can ensure the checkout equipment for the arc light early warning of switch cabinet one-time equipment and protective device and the method for the safe operation of electric power supply system equipment and the reliability of power supply.
The technical solution adopted for the present invention to solve the technical problems is: this checkout equipment comprises test cell, for generation of the current unit and the arc light unit that detect required electric current, the current output terminal mouth of test cell connects the input end of current unit, the light source output port of test cell connects visible light source and the ultraviolet source of arc light unit, the opposite side of the arc light unit relative with visible light source and ultraviolet source arranges standard arc probe placement section and tested arc probe placement section, in standard arc probe placement section, standard arc probe is set, the arc probe access interface of standard arc probe connecting test unit, test cell is also provided with intake access interface.
Wherein, test cell comprises the signal processing unit of DSP and CPLD composition, LCD display, button and power module, the signal output part of signal processing unit connects LCD display, the power end of signal processing unit connects power module, the signal input part of signal processing unit connects button, the current output terminal of signal processing unit connects current unit by current output terminal mouth, the light source output terminal of signal processing unit connects visible light source and the ultraviolet source of arc light unit by light source output port, the signal input part of signal processing unit is by arc probe access interface connection standard arc probe, signal processing unit is connected intake access interface by D/A converting circuit with low-pass filtering buffer circuit.
Wherein, arc light unit comprises a light shield, light shield one end arranges visible light source and ultraviolet source, and corresponding visible light source and ultraviolet source arrange standard arc probe placement section and tested arc probe placement section at the other end of light shield, arrange standard arc probe in standard arc probe placement section.
Wherein, current unit adopts high-current signal generator; Or described current unit comprises the input circuit connected successively, middle amplifying circuit and power output circuit, power output circuit periphery connects protection circuit, and power output circuit also connects input circuit by negative-feedback circuit.
Wherein, test cell arranges network interface, and test cell connects host computer by network interface.
Wherein, the signal processing unit of test cell adopts TMS320F2812, and standard arc probe adopts illuminance sensor.
The above-mentioned detection method for the arc light early warning of switch cabinet one-time equipment and protective device comprises the following steps:
(1) arc probe of detected switch cabinet one-time equipment arc light early warning and protective device is placed in tested arc probe placement section, the current input terminal of detected switch cabinet one-time equipment arc light early warning and protective device is connected the output terminal of current unit, by the intake access interface of the tripping operation outlet connecting test unit of detected switch cabinet one-time equipment arc light early warning and protective device;
(2) collect corresponding electric signal to detected switch cabinet one-time equipment arc light early warning and protective device compare by the electric signal of current value signals, visible light source and the ultraviolet source in the primary equipment arc light early warning of test cell input switch cabinet and protective device rated range, the current precision of detected switch cabinet one-time equipment arc light early warning and protective device and arc light precision are detected;
(3) by the electric signal of current value signals, visible light source and the ultraviolet source beyond test cell input rated range; while input, test cell carries out timing; tripping operation process is carried out after detected switch cabinet one-time equipment arc light early warning and protective device collect corresponding electric signal; trip signal is sent to test cell by intake access interface; test cell stops timing after signal being detected, by the LCD display display trip operation time.
Wherein, current precision detection method is: by test cell input current signal, current signal enters current unit by current output terminal mouth, current unit converts thereof into according to collected current signal and detects required big current by being detected the current input terminal input of the arc light early warning of switch cabinet one-time equipment and protective device, and by current signal that the detected switch cabinet one-time equipment arc light early warning of the display screen display of detected switch cabinet one-time equipment arc light early warning and protective device and protective device collect, the current signal of the current signal collected and input is contrasted, if in error range, then the current precision detection of this detected switch cabinet one-time equipment arc light early warning and protective device is qualified, if not in error range, then defective.
Wherein, the detection method of arc light precision is: input light signal by test cell; the arc light value detected by standard arc probe and detected arc probe is compared; if the arc light value that tested arc probe collects is in error range; then the arc light accuracy detection of this detected switch cabinet one-time equipment arc light early warning and protective device is qualified; if not in error range, then defective.
Wherein, the detection method of trip operation time is: also carry out timing by test cell input higher than load current value and specified arc light value simultaneously, after detected switch cabinet one-time equipment arc light early warning and protective device detect the electric current that test cell inputs and arc light value, judge whether in ratings, if when current value or arc light value any one or two equal off-ratings being detected, detected switch cabinet one-time equipment arc light early warning and protective device carry out trip operation, trip signal is sent to test cell by intake access interface, test cell stops timing after signal being detected, by the LCD display display trip operation time.
The beneficial effect that the present invention has is:
1, test cell is provided with operation push-button and LCD display, not only conveniently can input information, the information such as arc light value, current value and actuation time can also be shown in real time by LCD display, staff is facilitated to observe, simultaneously, the inner DSP digital signal processing unit that adopts is as central outlets device, coordinate CPLD logic computing unit, extend out RAM and EEPROM of dual-port, improve performance, the signal of accurate acquisition arc light unit and current unit, substantially increases arithmetic speed, also assures that the stability of circuit.
2, arc light unit arranged outside light shield, arranges visible ray and ultraviolet light in light shield inside, realizes the precise acquisition to visible ray and ultraviolet light, ensures the accuracy that switch cabinet one-time equipment arc light early warning and protective device detect.
3, current unit can realize the generation of electric current, is connected with detected switch cabinet one-time equipment arc light early warning and protective device by terminal, produces the size of current needed for detection time, and structure is simple, easy to operate.
4, the present invention not only improve detect arc light, electric current precision, also detect the trip operation time, structure is simple, and accuracy in detection is high, further ensures the safe operation of electric power supply system equipment and the reliability of power supply simultaneously.
5, arc light unit has arc light generating function, adopts photoelectric conversion technique can precise acquisition visible ray and ultraviolet light; Current unit can produce various experiment electric current, and can gather current signal accurately fast; Test cell not only accurately judges the precision of electric current and arc light, and to the time of tripping operation outlet action when can also judge that arc light, electric current occur fast, structure is simple, detects accurately, the safe operation of effective guarantee electric power supply system equipment.
6, test cell has button operation, LCD Presentation Function, to the time during tripping operation outlet action when can judge that arc light, electric current occur fast, the hommization of LCD menu design, close friendization, button operation is simple and practical, when arc light and electric current occur, test cell is by the change of access point signals, and test out to the time during tripping operation outlet when arc current occurs, LCD shows the information such as real-time current value, arc light value and trip operation time simultaneously.
7, power module part provides power supply for whole circuit part, intake is by the process of low-pass filtering buffer circuit, good process has been done to the undesired signal of outside, ensure that this Circuits System not by the interference of external signal, DAC and AD669 is analog to digital conversion circuit part, realize the accurate measurement of simulating signal, corresponding illuminance is converted into by the analog quantity collected, TMS320F2812 is the DSP product of a TI company, be used for carrying out the product of digital signal processing, this circuit adopts complex programmable logic device (CPLD), improve arithmetic speed greatly, also ensure that the stability of circuit part, for improving performance, also extend out RAM and EEPROM of dual-port.
8, arc light unit has arc light generating function, visible ray or the ultraviolet light of all size illuminance can be exported by controlling test cell, applied customization light shield, adopt photoelectric conversion technique, the optical system intelligent chip of inner utilization test cell, achieves the precise acquisition to visible ray and ultraviolet light.
9, current unit can produce the current value of the different sizes required by experiment, realize the precise acquisition of electric current, test cell adopts fast algorithm, several unique points of each cycle collection fixed qty, and carry out rational mathematical modeling, realize the accurate measurement reaching whole cycle within 7ms.
10, test cell is also provided with network interface, and test cell connects host computer by network interface, facilitates staff to carry out operation to proving installation and controls.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is current unit schematic diagram of the present invention;
Fig. 3 is test cell schematic diagram of the present invention;
In figure: 1 test cell; 2 arc probe access interface; 3 network interfaces; 4 intake access interface; 5 standard arc probe placement sections; 6 standard arc probe; 7 tested arc probe placement sections; 8 arc light units; 9 current units; 10 current output terminal mouths; 11 light source output ports; 12 visible light sources; 13 ultraviolet sources; 14 signal processing units; 15LCD display screen; 16 power modules; 17 D/A converting circuits; 18 low-pass filtering buffer circuits.
Embodiment
Below in conjunction with drawings and Examples, technical solution of the present invention is described further.
As shown in Figure 1-Figure 3, checkout equipment for the arc light early warning of switch cabinet one-time equipment and protective device comprises test cell 1, for generation of the current unit 9 and the arc light unit 8 that detect required electric current, the current output terminal mouth 10 of test cell 1 connects the input end of current unit 9, the light source output port 11 of test cell 1 connects visible light source 12 and the ultraviolet source 13 of arc light unit 8, the opposite side of the arc light unit 8 relative with ultraviolet source 13 with visible light source 12 arranges standard arc probe placement section 5 and tested arc probe placement section 7, in standard arc probe placement section 5, standard arc probe 6 is set, the arc probe access interface 2 of standard arc probe 6 connecting test unit 1, test cell 1 is also provided with intake access interface 4.
Wherein, test cell 1 comprises the signal processing unit 14 of DSP and CPLD composition, LCD display 15, button and power module 16, the signal output part of signal processing unit 14 connects LCD display 15, the power end of signal processing unit 14 connects power module 16, the signal input part of signal processing unit 14 connects button, the current output terminal of signal processing unit 14 connects current unit 9 by current output terminal mouth 10, the light source output terminal of signal processing unit 14 connects visible light source 12 and the ultraviolet source 13 of arc light unit 8 by light source output port 11, the signal input part of signal processing unit 14 is by arc probe access interface 2 connection standard arc probe 6, signal processing unit 14 is connected intake access interface 4 by D/A converting circuit 17 with low-pass filtering buffer circuit 18.
Wherein, arc light unit 8 comprises a light shield, light shield one end arranges visible light source 12 and ultraviolet source 13, corresponding visible light source 12 and ultraviolet source 13 arrange standard arc probe placement section 5 and tested arc probe placement section 7 at the other end of light shield, arrange standard arc probe 6 in standard arc probe placement section 5.
Wherein, current unit 9 adopts high-current signal generator; Or described current unit 9 comprises the input circuit connected successively, middle amplifying circuit and power output circuit, power output circuit periphery connects protection circuit, and power output circuit also connects input circuit by negative-feedback circuit; Described current unit 9 can also be PLC programmable logic controller (PLC), the signal processing unit of test cell sends current signal, PLC programmable logic controller (PLC) carries out treatment and analysis after receiving signal, control current unit and produce the current value required for testing, current unit is selected flexibly, easy to operate.
Wherein, test cell 1 is also provided with network interface 3, and test cell 1 connects host computer by network interface 3, facilitate operated by personnel, the signal processing unit of test cell 1 adopts TMS320F2812, fast operation, standard arc probe 6 adopts illuminance sensor, and arc light collection is accurate.
The concrete steps of the above-mentioned detection method for the arc light early warning of switch cabinet one-time equipment and protective device are as follows:
(1) arc probe of detected switch cabinet one-time equipment arc light early warning and protective device is placed in tested arc probe placement section 7, the current input terminal of detected switch cabinet one-time equipment arc light early warning and protective device is connected the output terminal of current unit, by the intake access interface 4 of the tripping operation outlet connecting test unit 1 of detected switch cabinet one-time equipment arc light early warning and protective device;
(2) collect corresponding electric signal to detected switch cabinet one-time equipment arc light early warning and protective device compare by the electric signal of current value signals, visible light source 12 and the ultraviolet source 13 in the primary equipment arc light early warning of test cell input switch cabinet and protective device rated range, the current precision of detected switch cabinet one-time equipment arc light early warning and protective device and arc light precision are detected;
(3) electric signal of current value signals, visible light source 12 and ultraviolet source 13 beyond rated range is inputted by test cell 1; while input; test cell 1 carries out timing; tripping operation process is carried out after detected switch cabinet one-time equipment arc light early warning and protective device collect corresponding electric signal; trip signal is sent to test cell 1 by intake access interface 4; test cell 1 stops timing after signal being detected, shows the trip operation time by LCD display 15.
Wherein, current precision detection method is: by test cell 1 input current signal, current signal enters current unit 9 by current output terminal mouth 10, current unit 9 converts thereof into according to collected current signal and detects required big current by being detected the current input terminal input of the arc light early warning of switch cabinet one-time equipment and protective device, and by current signal that the detected switch cabinet one-time equipment arc light early warning of the display screen display of detected switch cabinet one-time equipment arc light early warning and protective device and protective device collect, the current signal of the current signal collected and input is contrasted, if in error range, then the current precision detection of this detected switch cabinet one-time equipment arc light early warning and protective device is qualified, if not in error range, then defective.
Wherein, the detection method of arc light precision is: input light signal by test cell 1; the arc light value detected by standard arc probe 6 and detected arc probe is compared; if the arc light value that tested arc probe collects is in error range; then the arc light accuracy detection of this detected switch cabinet one-time equipment arc light early warning and protective device is qualified; if not in error range, then defective.
Wherein, the detection method of trip operation time is: also carry out timing by test cell input higher than load current value and specified arc light value simultaneously, after detected switch cabinet one-time equipment arc light early warning and protective device detect the electric current that test cell 1 inputs and arc light value, judge whether in ratings, if when current value or arc light value any one or two equal off-ratings being detected, detected switch cabinet one-time equipment arc light early warning and protective device carry out trip operation, trip signal is sent to test cell 1 by intake access interface 4, test cell 1 stops timing after signal being detected, the trip operation time is shown by LCD display 15.
Embodiment 1: the tested arc probe placement section 7 tested arc probe being put into arc light unit 8, the current signal output end of current unit 9 is connected to the current input terminal of tested switch cabinet one-time equipment arc light early warning and protective device, the intake interface of the tripping operation outlet access test cell of tested switch cabinet one-time equipment arc light early warning and protective device, to start shooting tested switch cabinet one-time equipment arc light early warning and protective device, be set to electric current, the two criterion trip protection pattern of arc light (the specified definite value 5kLux of setting arc light detecting), start tester, arc light experiment is selected by host computer or by key control, corresponding parameter is set, illuminance selects visible ray or ultraviolet light, illuminance size selects 5kLux, after being provided with, choice menus interface starts test, experiment is carried out automatically, meeting display light illumination size after end, if the arc light value that tested switch cabinet one-time equipment arc light early warning and protective device detect is within the scope of 4.5-5.5kLux, then tested switch cabinet one-time equipment arc light early warning and protective device arc light detecting precision accurate.
Embodiment 2: the tested arc probe placement section 7 tested arc probe being put into arc light unit 8, the current signal output end of current unit 9 is connected to the current input terminal of tested switch cabinet one-time equipment arc light early warning and protective device, the intake interface of the tripping operation outlet access test cell of tested switch cabinet one-time equipment arc light early warning and protective device, to start shooting tested switch cabinet one-time equipment arc light early warning and protective device, be set to electric current, the two criterion trip protection pattern (current protection ratings is 7.5A) of arc light, start tester, Current experiments is selected by host computer or by key control, corresponding parameter is set, electric current exports and is set to 7.5A, after being provided with, choice menus interface starts test, experiment is carried out automatically, size of current can be shown after end, if the current value that tested switch cabinet one-time equipment arc light early warning and protective device detect is 7-8A, then tested switch cabinet one-time equipment arc light early warning and protective device current detection accuracy accurate.
Embodiment 3: the tested arc probe placement section 7 tested arc probe being put into arc light unit 8, the current signal output end of current unit 9 is connected to the current input terminal of tested switch cabinet one-time equipment arc light early warning and protective device, the intake interface of the tripping operation outlet access test cell of tested switch cabinet one-time equipment arc light early warning and protective device, to start shooting tested switch cabinet one-time equipment arc light early warning and protective device, be set to electric current, the two criterion trip protection pattern of arc light, the specified definite value 5kLux of arc light detecting is set, current protection ratings is 7.5A, start tester, arc light is selected by host computer or by key control, Current experiments, corresponding parameter is set, electric current exports and is set to 8A, illuminance selects visible ray or ultraviolet light, illuminance size selects 7.5kLux, after being provided with, choice menus interface starts test, experiment is carried out automatically, meeting display light illumination size after end, size of current, intake from be tested to and receive the signal later time interval (i.e. the trip operation time of tested switch cabinet one-time equipment arc light early warning and protective device).
Embodiment 4: the tested arc probe placement section 7 tested arc probe being put into arc light unit 8, the current signal output end of current unit 9 is connected to the current input terminal of tested switch cabinet one-time equipment arc light early warning and protective device, the intake interface of the tripping operation outlet access test cell of tested switch cabinet one-time equipment arc light early warning and protective device, to start shooting tested switch cabinet one-time equipment arc light early warning and protective device, be set to electric current, arc light list criterion trip protection pattern, the specified definite value 5kLux of arc light detecting is set, current protection ratings is 7.5A, start tester, arc light is selected by host computer or by key control, Current experiments, corresponding parameter is set, electric current exports and is set to 8A, illuminance size is that 5kLux(or illuminance select visible ray or ultraviolet light, illuminance size selects 7.5kLux, electric current exports and is set to 7.5A), after being provided with, choice menus interface starts test, experiment is carried out automatically, meeting display light illumination size after end, size of current, intake from be tested to and receive the trip operation time that namely the signal later time interval is tested switch cabinet one-time equipment arc light early warning and protective device.
Tester of the present invention adopts the large scale integrated circuits such as DSP+CPLD as central processing unit and logic computing unit, gather the signal of arc light unit and current unit, tripping operation output action Time Calculation is made by analyzing judgement, test cell is designed with arc light generation button, electric current generation button, arc current the multiple button design such as button occur simultaneously, carries out different tests by corresponding experiment button; Meanwhile, test cell adopts true color LCD display, menu-type design, operation push-button realizes selection and the switching of different menu, and clear display test condition and test result, structure is simple, accuracy in detection is high, ensure that the safe operation of power-supply unit and the reliability of power supply.
Claims (10)
1. for the checkout equipment of the arc light early warning of switch cabinet one-time equipment and protective device, it is characterized in that: this checkout equipment comprises test cell (1), for generation of the current unit (9) and the arc light unit (8) that detect required electric current, the current output terminal mouth (10) of test cell (1) connects the input end of current unit (9), the light source output port (11) of test cell (1) connects visible light source (12) and the ultraviolet source (13) of arc light unit (8), the opposite side of the arc light unit (8) relative with ultraviolet source (13) with visible light source (12) arranges standard arc probe placement section (5) and tested arc probe placement section (7), standard arc probe (6) is set in standard arc probe placement section (5), the arc probe access interface (2) of standard arc probe (6) connecting test unit (1), test cell (1) is also provided with intake access interface (4).
2. the checkout equipment for the arc light early warning of switch cabinet one-time equipment and protective device according to claim 1, it is characterized in that: described test cell (1) comprises the signal processing unit (14) of DSP and CPLD composition, LCD display (15), button and power module (16), the signal output part of signal processing unit (14) connects LCD display (15), the power end of signal processing unit (14) connects power module (16), the signal input part of signal processing unit (14) connects button, the current output terminal of signal processing unit (14) connects current unit (9) by current output terminal mouth (10), the light source output terminal of signal processing unit (14) connects visible light source (12) and the ultraviolet source (13) of arc light unit (8) by light source output port (11), the signal input part of signal processing unit (14) is by arc probe access interface (2) connection standard arc probe (6), signal processing unit (14) is connected intake access interface (4) by D/A converting circuit (17) with low-pass filtering buffer circuit (18).
3. the checkout equipment for the arc light early warning of switch cabinet one-time equipment and protective device according to claim 1; it is characterized in that: described arc light unit (8) comprises a light shield; light shield one end arranges visible light source (12) and ultraviolet source (13); corresponding visible light source (12) and ultraviolet source (13) arrange standard arc probe placement section (5) and tested arc probe placement section (7) at the other end of light shield, arrange standard arc probe (6) in standard arc probe placement section (5).
4. the checkout equipment for the arc light early warning of switch cabinet one-time equipment and protective device according to claim 1, is characterized in that: described current unit (9) adopts high-current signal generator; Or described current unit (9) comprises the input circuit connected successively, middle amplifying circuit and power output circuit, power output circuit periphery connects protection circuit; Or power output circuit also connects input circuit by negative-feedback circuit.
5. the checkout equipment for the arc light early warning of switch cabinet one-time equipment and protective device according to claim 1, is characterized in that: described test cell (1) is also provided with network interface (3), and test cell (1) connects host computer by network interface (3).
6. the checkout equipment for the arc light early warning of switch cabinet one-time equipment and protective device according to claim 2; it is characterized in that: the signal processing unit of described test cell (1) adopts TMS320F2812, and standard arc probe (6) adopts illuminance sensor.
7., for the detection method of the arc light early warning of switch cabinet one-time equipment and protective device, it is characterized in that this detection method comprises the following steps:
(1) arc probe of detected switch cabinet one-time equipment arc light early warning and protective device is placed in tested arc probe placement section (7), the current input terminal of detected switch cabinet one-time equipment arc light early warning and protective device is connected the output terminal of current unit, by the intake access interface (4) of tripping operation outlet connecting test unit (1) of detected switch cabinet one-time equipment arc light early warning and protective device;
(2) collect corresponding electric signal to detected switch cabinet one-time equipment arc light early warning and protective device compare by the electric signal of the current value signals in the primary equipment arc light early warning of test cell input switch cabinet and protective device rated range, visible light source (12) and ultraviolet source (13), the current precision of detected switch cabinet one-time equipment arc light early warning and protective device and arc light precision are detected;
(3) by the electric signal of current value signals, visible light source (12) and the ultraviolet source (13) beyond test cell (1) input rated range; while input, test cell (1) carries out timing; tripping operation process is carried out after detected switch cabinet one-time equipment arc light early warning and protective device collect corresponding electric signal; trip signal is sent to test cell (1) by intake access interface (4); timing is stopped, by LCD display (15) the display trip operation time after test cell (1) detects signal.
8. the checkout equipment for the arc light early warning of switch cabinet one-time equipment and protective device according to claim 7, it is characterized in that described current precision detection method is: by test cell (1) input current signal, current signal enters current unit (9) by current output terminal mouth (10), current unit (9) converts thereof into according to collected current signal and detects required big current by being detected the current input terminal input of the arc light early warning of switch cabinet one-time equipment and protective device, and by current signal that the detected switch cabinet one-time equipment arc light early warning of the display screen display of detected switch cabinet one-time equipment arc light early warning and protective device and protective device collect, the current signal of the current signal collected and input is contrasted, if in error range, then the current precision detection of this detected switch cabinet one-time equipment arc light early warning and protective device is qualified, if not in error range, then defective.
9. the checkout equipment for the arc light early warning of switch cabinet one-time equipment and protective device according to claim 7; it is characterized in that the detection method of described arc light precision is: by test cell (1) input light signal; the arc light value detected by standard arc probe (6) and detected arc probe is compared; if the arc light value that tested arc probe collects is in error range; then the arc light accuracy detection of this detected switch cabinet one-time equipment arc light early warning and protective device is qualified; if not in error range, then defective.
10. the checkout equipment for the arc light early warning of switch cabinet one-time equipment and protective device according to claim 7, it is characterized in that the detection method of described trip operation time is: also carry out timing by test cell input higher than load current value and specified arc light value simultaneously, after detected switch cabinet one-time equipment arc light early warning and protective device detect the electric current that test cell (1) inputs and arc light value, judge whether in ratings, if when current value or arc light value any one or two equal off-ratings being detected, detected switch cabinet one-time equipment arc light early warning and protective device carry out trip operation, trip signal is sent to test cell (1) by intake access interface (4), timing is stopped after test cell (1) detects signal, by LCD display (15) the display trip operation time.
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| CN106093738A (en) * | 2016-08-26 | 2016-11-09 | 张振堂 | A kind of middle-low voltage switch cabinet online detector for partial discharge |
| CN106646309A (en) * | 2016-11-14 | 2017-05-10 | 国网江苏省电力公司淮安供电公司 | Precision detection device of arc light detector |
| CN109738768A (en) * | 2018-12-10 | 2019-05-10 | 国网浙江省电力有限公司金华供电公司 | A kind of switchgear electric arc on-line measuring device |
| CN110618337A (en) * | 2019-10-30 | 2019-12-27 | 云南恒协科技有限公司 | Arc light protection device calibrator |
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Application publication date: 20160120 |