CN104880666A - Remote testing device of automatic grounding operation - Google Patents
Remote testing device of automatic grounding operation Download PDFInfo
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- CN104880666A CN104880666A CN201510241191.5A CN201510241191A CN104880666A CN 104880666 A CN104880666 A CN 104880666A CN 201510241191 A CN201510241191 A CN 201510241191A CN 104880666 A CN104880666 A CN 104880666A
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- acting characteristic
- detection
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
- G01R31/3277—Testing of circuit interrupters, switches or circuit-breakers of low voltage devices, e.g. domestic or industrial devices, such as motor protections, relays, rotation switches
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
- Supply And Distribution Of Alternating Current (AREA)
- Testing Or Calibration Of Command Recording Devices (AREA)
Abstract
The invention discloses a remote testing device of automatic grounding operation. The testing device is used for automatically detecting operation characteristics of a residual current protective device, and comprises a data acquisition module, a data memory, a data processing module, a power supply module, a grounding module, and a GSM module, wherein the data acquisition module exchanges data with the residual current protective device; the power supply module provides a working power supply; the data memory are responsible for data storage; the data processing module controls the residual current protective device to detect the operation characteristics; the data processing module controls the grounding module to automatically adjust the corresponding grounding resistance; the data processing module controls the content of a message sent by GSM; and the GSM module sends the message according to processing judgment of the data processing module. The testing device is small in size, and has complete functions of data acquisition, intelligent judgment, and remote communication, and the correct rate of detecting the operation characteristics of the residual current protective device is improved.
Description
Technical field
The present invention relates to power technology, particularly relate to remote auto landing operation test unit.
Background technology
Rural low voltage network classification installing RCD is one of minimizing or the effective measures preventing personal electric shock casualty accident, is also the technical measures preventing from causing electrical fire and electrical equipment to damage by electric leakage.For many years; RCD is applied throughout all parts of the country; from family, enterprise and power supply enterprise all in use, the intelligent RCD that particularly power supply enterprise is installed in recent years, for power supply enterprise alleviates more pressure in operation maintenance work.
The acting characteristic detection of rural power grids RCD is the major tasks of power supply enterprise's controller switching equipment operation maintenance; this device action sensitivity directly prevents the most effective defense technique measure of personal electric shock casualty accident; detected site work by hand in the past, and not only increased power supply station's workload but also there is job safety risk.
Summary of the invention
Technical matters to be solved by this invention is just to provide a kind of remote auto landing operation test unit; utilize clocked flip automatically to complete RCD acting characteristic to detect; can significantly promote power supply enterprise's work efficiency; reduce job safety risk, improve the degree of accuracy of device action Characteristics Detection.
For solving the problems of the technologies described above, the present invention adopts following technical scheme: a kind of remote auto landing operation test unit, automatically detect for RCD acting characteristic, comprise data acquisition module, data-carrier store, data processing module, power module, earthing module and gsm module;
Described data acquisition module and RCD carry out exchanges data, and described power module provides working power, and described data-carrier store is responsible for data and is stored;
Described data processing module controls RCD and carries out acting characteristic detection, and described data processing module controls earthing module and automatically regulates corresponding stake resistance, and described data processing module sends short message content to GSM and controls;
Described gsm module judges to send note according to the process of data processing module.
Preferably, described power module is provided with lithium battery, when meeting power failure, is that test unit is powered by lithium battery.
Preferably; described data acquisition module detects plant-grid connection by 485 ports and two-way acting characteristic and forms; the voltage that 485 port processing RCDs push, electric current, residual current, switching value and tripping operation record data, two-way acting characteristic detects power supply from the access of low-pressure line-outgoing fuse upper prop lead-in wire.
Preferably, described earthing module is connected with grounding body with stake resistance through relay normally open contact according to two-way acting characteristic detection plant-grid connection.
Preferably, described data processing module comprises the steps: the control that RCD acting characteristic detects automatically
First, carry out RCD acting characteristic and detect preparation, be specially this month tripping operation record that statistics RCD stores, if store tripping operation record, send the information of " this month has trip operation record " and terminate this RCD acting characteristic detection preparation, if do not trip record, then enter next step;
Secondly, regulated ground resistance detects, be specially " residual action current value " data reading and preset in RCD, according to the scope of " residual action current value " data, the corresponding stake resistance of automatic adjustment, and testing circuit correspondence is connected to A phase or B phase or C phase;
Then, detect and collect RCD acting characteristic detection data, specifically comprise data and the rear data of detection in data before detecting, detection, RCD acting characteristic wherein detects data and comprises U
a, U
b, U
c, I
a, I
b, I
c, residual current I
Δ nwith the data of switching value KGL;
Finally, data after data in data, detection before the detection of RCD acting characteristic and detection are carried out contrasting and judged, if meet U
a1>0, U
a2=0, U
a3>0, U
b1>0, U
b2=0, U
b3>0, U
c1>0, U
c2=0, U
c3>0, I
a1>0, I
a2=0, I
a3>0, I
b1>0, I
b2=0, I
b3>0, I
c1>0, I
c2=0, I
c3>0, I
Δ n1>0, I
Δ n2=0, I
Δ n3>0, KGL
1=1, KGL
2=0 and KGL
3=1 condition; then send " RCD acting characteristic detects normal " information; and terminate this acting characteristic detection preparation; if do not met; send " RCD acting characteristic detects abnormal; need on-site verification " information, and terminate this acting characteristic detection preparation.
Test unit volume of the present invention is little and have complete data acquisition, intelligent decision and remote communicating function, flexible for installation and convenient.The application of this device has accomplished that automatically completing RCD acting characteristic detects; also utilize the low power consumption period to detect simultaneously; achieve many power supplies; avoid client's complaint of transient-power failure; also improve the accuracy that RCD acting characteristic detects, play the effect conscientiously alleviating grass-roots work amount.
(1) operation maintenance quality is improved.Utilize the public power load characteristic customization RCD acting characteristic detection time of becoming; of that month frequent movement can be avoided to affect the normal productive life electricity consumption of client; and achieve the detection being monthly regularly timed to rule, solve in the past random client that operation brings and be discontented with.
(2) RCD operational reliability is improved.The function such as utilize the statistics of test unit, contrast and study and judge; further increase the circuit board before and after RCD action, the healthy rate of mechanism action judges; testing result than manually puts in place more; namely solve and estimated not detectable internal fault in the past, also ensured RCD bringing normally into operation.
(3) grass-roots work pressure is reduced.Test unit monthly clocked flip detects, and achieves equipment manager and utilizes SMS to consult understanding testing result, alleviate the working pressure of basic unit, also achieve remote supervisory RCD running status.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the invention will be further described:
Fig. 1 is remote auto landing operation test unit theory diagram of the present invention;
Fig. 2 is remote auto landing operation test unit earthing module wiring diagram of the present invention;
Fig. 3 is remote auto landing operation test unit wiring diagram of the present invention;
Fig. 4 is the automatic overhaul flow chart of RCD acting characteristic.
Embodiment
As shown in Figure 1 to Figure 3, test unit comprises liquid crystal display, data memory module, CPU processor, gsm module, input through keyboard module, power module, data acquisition module, earthing module and two groups of change-over switches and on-the-spot trial jump button key composition, and concrete function is as follows:
(1) data-carrier store.Data after the complete acting characteristic Detection task of primary responsibility test unit store.
(2) CPU processor.Perform and gather RCD service data instruction transmission; grounding resistance regulates automatically; the relay coil time that logical (breaking) is connected with stake resistance regulates automatically; the setting of timed activity Characteristics Detection threshold values; GSM message triggers, and acting characteristic detects the function such as Data Comparison and judgement.
(3) power module.Working power access and lithium battery automatic charging, when this module is met and had a power failure, test unit can also pass through lithium battery power supply.
(4) data acquisition module.Detect plant-grid connection by 485 ports and two-way acting characteristic to form, 485 ports are responsible for carrying out exchanges data with RCD, gather voltage, electric current, residual current, switching value and tripping operation record data that RCD pushes.Two-way acting characteristic detects power supply then from the access of low-pressure line-outgoing fuse upper prop lead-in wire.
(5) earthing module.Detect plant-grid connection according to two-way acting characteristic to be connected with grounding body with 1k Ω ~ 2k Ω resistance through relay normally open contact.
(6) input through keyboard module.Data query in test unit data-carrier store, acting characteristic detects timing threshold value setting, and GSM mobile handset number sets, RCD type set etc.
(7) liquid crystal display.Trial jump testing process data wheel shows and data display in data-carrier store.
(8) change-over switch.The switching of test unit automatic and manual operation acting characteristic detecting pattern can be carried out according to long-range/on-the-spot switch.
(9) on-the-spot trial jump.When being on-the-spot by long-range/on-the-spot switch-linear hybrid, pressing on-the-spot trial jump button and carry out trial jump detection.
(10) gsm module.Be responsible for SMS to send, long-range reception parameters adjustment and editing short message carry out data query.
In conjunction with the automatic overhaul flow chart of RCD acting characteristic as shown in Figure 4, the concrete steps of RCD acting characteristic automatic testing method are explained.
First, carry out RCD acting characteristic and detect preparation, be specially this month tripping operation record that statistics RCD stores, if store tripping operation record, send the information of " this month has trip operation record " and terminate this RCD acting characteristic detection preparation, if do not trip record, then enter next step;
Secondly, regulated ground resistance detects, be specially " residual action current value " data reading and preset in RCD, according to the scope of " residual action current value " data, the corresponding stake resistance of automatic adjustment, and testing circuit correspondence is connected to A phase or B phase or C phase;
Then, detect and collect RCD acting characteristic detection data, specifically comprise data and the rear data of detection in data before detecting, detection, RCD acting characteristic wherein detects data and comprises U
a, U
b, U
c, I
a, I
b, I
c, residual current I
Δ nwith the data of switching value KGL;
Finally, data after data in data, detection before the detection of RCD acting characteristic and detection are carried out contrasting and judged, if meet U
a1>0, U
a2=0, U
a3>0, U
b1>0, U
b2=0, U
b3>0, U
c1>0, U
c2=0, U
c3>0, I
a1>0, I
a2=0, I
a3>0, I
b1>0, I
b2=0, I
b3>0, I
c1>0, I
c2=0, I
c3>0, I
Δ n1>0, I
Δ n2=0, I
Δ n3>0, KGL
1=1, KGL
2=0 and KGL
3=1 condition; then send " RCD acting characteristic detects normal " information; and terminate this acting characteristic detection preparation; if do not met; send " RCD acting characteristic detects abnormal; need on-site verification " information, and terminate this acting characteristic detection preparation.
Further, be specially:
Step 1: according to the timing arranged in CPU processor, starts RCD acting characteristic and detects preparation, eliminates CPU processor cache data, enters RCD acting characteristic testing process.
Step 2:CPU processor utilizes this month tripping operation record in 485 port communication statistics RCD storeies; detect preparation day forward according to acting characteristic to add up for 29th; when result is for being more than or equal to " 1 ", enter step 3, otherwise enter step 4.
Step 3: trigger gsm module send " this month has trip operation record " note, and enter step 17 link terminate this RCD acting characteristic detect prepare.
Step 4: read " residual action current value " data preset in RCD by 485 ports.
Step 5: reading " residual action current value " data is 50 ~ 75mA, and the automatic regulated ground resistance of test unit is 1k Ω shelves, and testing circuit is connected to A phase; During 100 ~ 150mA, regulated ground resistance is 1.5k Ω shelves, and testing circuit is connected to B phase; During 200 ~ 300mA, be adjusted to 2k Ω shelves, testing circuit is connected to C phase.If when being greater than 300mA, first test unit sends instruction, and the residual action current value of RCD is adjusted to 300mA, and then regulates on corresponding stake resistance and detect.
Step 6: send RCD acting characteristic and detect front Data Collection instruction, gather U
a, U
b, U
c, I
a, I
b, I
c, residual current I
Δ nbe stored in CPU processor cache with the data of switching value KGL, and press U
a1, U
b1, U
c1, I
a1, I
b1, I
c1, I
Δ n1and KGL
1form stores.
Step 7: according to CPU processor deliberate action Characteristics Detection timing, by testing circuit phase sequence by relay coil 0.2s conduction time to carry out simulating 80% detection of residual current super default " residual action current value " through connecing resistance to grounding body.
Step 8: send Data Collection instruction after waiting for 10 ~ 20s, gathers U
a, U
b, U
c, I
a, I
b, I
c, residual current I
Δ nbe stored in CPU processor cache with the data of switching value KGL, and press U
a2, U
b2, U
c2, I
a2, I
b2, I
c2, I
Δ n2and KGL
2form stores, 0.3s and 0.5s circle collection then adopts the data in alternative CPU processor cache.
Step 9: judge U
a2=0, U
b2=0, U
c2=0 and KGL
2whether=0 condition meets, and does not meet and returns step 10 or step 11 successively by 0.3s and 0.5s ON time, meet, enter step 12.
Step 10: by testing circuit phase sequence by relay coil 0.3s conduction time to carry out simulating 80% detection of residual current super default " residual action current value " through connecing resistance to grounding body, and then enter step 8 and step 9 Data Collection and judgement and sentence link, do not meet and enter step 11, eligiblely enter step 12.
Step 11: by testing circuit phase sequence by relay coil 0.5s conduction time to carry out simulating 80% detection of residual current super default " residual action current value " through connecing resistance to grounding body, then sentence according to step 8 and step 9 Data Collection and judgement and also do not meet, ineligiblely carry out step 16, meet, enter step 12.
Again send Data Collection instruction after step 12:60s, gather U
a, U
b, U
c, I
a, I
b, I
c, residual current I
Δ n2be stored in CPU processor cache with the data of switching value KGL, and press U
a3, U
b3, U
c3, I
a3, I
b3, I
c3, I
Δ n3and KGL
3form stores.
Step 13: carry out contrasting according to (data of the collection after 60s) after (10 ~ 20s image data) before detection in CPU processor cache, in detection and detection and judge.
Step 14: if meet U
a1>0, U
a2=0, U
a3>0, U
b1>0, U
b2=0, U
b3>0, U
c1>0, U
c2=0, U
c3>0, I
a1>0, I
a2=0, I
a3>0, I
b1>0, I
b2=0, I
b3>0, I
c1>0, I
c2=0, I
c3>0, I
Δ n1>0, I
Δ n2=0, I
Δ n3>0, KGL
1=1, KGL
2=0 and KGL
3=1 condition then enters step 15, does not meet and enters step 16.
Step 15: trigger gsm module and send " RCD acting characteristic detect normal " note, and enter step 17 and terminate this acting characteristic and detect and prepare.
Step 16: trigger gsm module and send " RCD acting characteristic detect abnormal, need on-site verification " note, and enter step 17 and terminate this acting characteristic and detect and prepare.
Step 17: by the data conversion storage in CPU processor cache in data-carrier store, and remove data cached.
Claims (5)
1. a remote auto landing operation test unit, automatically detects for RCD acting characteristic, it is characterized in that: comprise data acquisition module, data-carrier store, data processing module, power module, earthing module and gsm module;
Described data acquisition module and RCD carry out exchanges data, and described power module provides working power, and described data-carrier store is responsible for data and is stored;
Described data processing module controls RCD and carries out acting characteristic detection, and described data processing module controls earthing module and automatically regulates corresponding stake resistance, and described data processing module sends short message content to GSM and controls;
Described gsm module judges to send note according to the process of data processing module.
2. a kind of remote auto landing operation test unit according to claim 1, is characterized in that: described power module is provided with lithium battery, when meeting power failure, is that test unit is powered by lithium battery.
3. a kind of remote auto landing operation test unit according to claim 1; it is characterized in that: described data acquisition module detects plant-grid connection by 485 ports and two-way acting characteristic and forms; the voltage that 485 port processing RCDs push, electric current, residual current, switching value and tripping operation record data, two-way acting characteristic detects power supply from the access of low-pressure line-outgoing fuse upper prop lead-in wire.
4. a kind of remote auto landing operation test unit according to claim 3, is characterized in that: described earthing module detects plant-grid connection according to two-way acting characteristic and is connected with grounding body with stake resistance through relay normally open contact.
5. a kind of remote auto landing operation test unit according to claim 1, is characterized in that: described data processing module comprises the steps: the control that RCD acting characteristic detects automatically
First, carry out RCD acting characteristic and detect preparation, be specially this month tripping operation record that statistics RCD stores, if store tripping operation record, send the information of " this month has trip operation record " and terminate this RCD acting characteristic detection preparation, if do not trip record, then enter next step;
Secondly, regulated ground resistance detects, be specially " residual action current value " data reading and preset in RCD, according to the scope of " residual action current value " data, the corresponding stake resistance of automatic adjustment, and testing circuit correspondence is connected to A phase or B phase or C phase;
Then, detect and collect RCD acting characteristic detection data, specifically comprise data and the rear data of detection in data before detecting, detection, RCD acting characteristic wherein detects data and comprises U
a, U
b, U
c, I
a, I
b, I
c, residual current I
Δ nwith the data of switching value KGL;
Finally, data after data in data, detection before the detection of RCD acting characteristic and detection are carried out contrasting and judged, if meet U
a1>0, U
a2=0, U
a3>0, U
b1>0, U
b2=0, U
b3>0, U
c1>0, U
c2=0, U
c3>0, I
a1>0, I
a2=0, I
a3>0, I
b1>0, I
b2=0, I
b3>0, I
c1>0, I
c2=0, I
c3>0, I
Δ n1>0, I
Δ n2=0, I
Δ n3>0, KGL
1=1, KGL
2=0 and KGL
3=1 condition; then send " RCD acting characteristic detects normal " information; and terminate this acting characteristic detection preparation; if do not met; send " RCD acting characteristic detects abnormal; need on-site verification " information, and terminate this acting characteristic detection preparation.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710454500.6A CN107271892B (en) | 2015-05-13 | 2015-05-13 | A kind of residual current action protector remote auto landing operation experimental rig |
| CN201510241191.5A CN104880666B (en) | 2015-05-13 | 2015-05-13 | A kind of remote auto landing operation experimental rig |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510241191.5A CN104880666B (en) | 2015-05-13 | 2015-05-13 | A kind of remote auto landing operation experimental rig |
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| CN201710454500.6A Division CN107271892B (en) | 2015-05-13 | 2015-05-13 | A kind of residual current action protector remote auto landing operation experimental rig |
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| CN104880666A true CN104880666A (en) | 2015-09-02 |
| CN104880666B CN104880666B (en) | 2017-11-17 |
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| CN201710454500.6A Active CN107271892B (en) | 2015-05-13 | 2015-05-13 | A kind of residual current action protector remote auto landing operation experimental rig |
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Cited By (4)
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| CN107910953A (en) * | 2017-03-29 | 2018-04-13 | 国网浙江省电力公司湖州供电公司 | A kind of device and method of intelligent monitoring controller switching equipment |
| CN111880084A (en) * | 2020-08-11 | 2020-11-03 | 常熟开关制造有限公司(原常熟开关厂） | Residual current protection uninterruptible power test method and device and residual current protection device |
| CN111880083A (en) * | 2020-08-11 | 2020-11-03 | 常熟开关制造有限公司(原常熟开关厂） | Uninterrupted residual current test method and device and residual current protection device |
| CN113030715A (en) * | 2021-03-02 | 2021-06-25 | 国网浙江省电力有限公司湖州供电公司 | Residual current operated circuit breaker performance detection device and fault judgment method |
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| CN108152571B (en) * | 2017-12-29 | 2020-06-30 | 国网浙江省电力公司湖州供电公司 | Residual current dynamic tracking analysis recording curve triggering short message device and method |
| CN110398686A (en) * | 2019-08-27 | 2019-11-01 | 杭州华春科技有限公司 | A kind of monitoring system of residual current action protector |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113030715B (en) * | 2021-03-02 | 2024-03-26 | 国网浙江省电力有限公司湖州供电公司 | Residual current operated circuit breaker performance detection device and fault judgment method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107271892A (en) | 2017-10-20 |
| CN107271892B (en) | 2019-07-02 |
| CN104880666B (en) | 2017-11-17 |
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