CN101907679A - Insulated detection and intelligent safety protection device of electric equipment - Google Patents
Insulated detection and intelligent safety protection device of electric equipment Download PDFInfo
- Publication number
- CN101907679A CN101907679A CN201010137423XA CN201010137423A CN101907679A CN 101907679 A CN101907679 A CN 101907679A CN 201010137423X A CN201010137423X A CN 201010137423XA CN 201010137423 A CN201010137423 A CN 201010137423A CN 101907679 A CN101907679 A CN 101907679A
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- equipment
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- insulation
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- 238000001514 detection method Methods 0.000 title claims abstract description 20
- 238000009413 insulation Methods 0.000 claims abstract description 36
- 238000012544 monitoring process Methods 0.000 claims abstract description 17
- 230000000295 complement effect Effects 0.000 claims description 3
- 238000012360 testing method Methods 0.000 description 22
- 238000005259 measurement Methods 0.000 description 11
- 230000006378 damage Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The invention relates to a detection and protection device, in particular to an insulated detection and intelligent safety protection device of electric equipment, which is used as an additional protection device of a tramegger. The insulated detection and intelligent safety protection device comprises a single-chip microprocessor, a control circuit, a converting circuit, a high-voltage monitoring module, an equipment electrification monitoring module, an insulated coarse measuring module, an AD converter, an indicating circuit and an alarm, wherein the single-chip microprocessor is electrically connected with the control circuit, the indicating circuit and the alarm; the control circuit is electrically connected with the converting circuit; the converting circuit is respectively and electrically connected with the high-voltage monitoring module, the equipment electrification monitoring module and the insulated coarse measuring module; the high-voltage monitoring module, the equipment electrification monitoring module and the insulated coarse measuring module are respectively connected with the AD converter; and the AD converter is connected with the single-chip microprocessor. The insulated detection and intelligent safety protection device indicates the electrification and insulation situations of measured equipment for operators so as to prevent the measured equipment from being broken down by high voltage and prevent the tramegger from being damaged by an equipment power supply.
Description
Technical field
The present invention relates to a kind of detection protective device, particularly a kind of insulated detection and intelligent safety protection device of electric equipment as the megohmmeter additional protection means.
Background technology
The long-term place of some electrical equipments in a humid environment, therefore, detections of all must insulating earlier when this electrical equipment is carried out current checks at different levels and maintenance, insulation detection must be forbidden two problems:
1, forbids the charged detection of insulating of equipment
If equipment under test has voltage, then this voltage can be added on megohmmeter by metering circuit, and megohmmeter is caused damage, high voltage even cause personal injury; Perhaps the megohmmeter output HIGH voltage can puncture equipment under test circuit or power supply, makes it some circuit and burns out, and causes equipment failure.
2, forbid apparatus insulatedly to fall very lowly or insulate detection during short circuit
Cause that equipment under test insulation is very low two kinds of reasons: the one, equipment insulation decline itself, the very low or equipment short circuit of resistance; The 2nd, the measuring position wrong.No matter above-mentioned which kind of reason, if insulation is very low even carry out insulation measurement again when being zero, the megohmmeter output HIGH voltage can make the circuit elements device breakdown, causes circuit to damage, and can further enlarge equipment failure.
Tradition utilizes megohmmeter to carry out in the process of insulation measurement; the operator is easy to ignore above-mentioned points for attention; thereby cause ill effect; therefore need an additional protection device; for operating personnel indicate the charged of measured equipment and insulation situation; thereby avoid equipment under test to be broken down by high-voltage, avoid megohmmeter to be damaged by device power supply (DPS).
Summary of the invention
Technical matters to be solved by this invention provides a kind ofly can point out the insulated detection and intelligent safety protection device of electric equipment of measured apparatus insulated or charged situation to avoid equipment under test or megohmmeter to damage.
In order to solve the problems of the technologies described above, the present invention realizes as follows: insulated detection and intelligent safety protection device of electric equipment of the present invention is made up of pyroelectric monitor module, insulation bigness scale module, AD converter, indicating circuit and alarm chip microprocessor, control circuit, change-over circuit, high tension voltage monitoring modular, equipment; In body, chip microprocessor is electrically connected with control circuit, indicating circuit and alarm; Control circuit is electrically connected with change-over circuit, change-over circuit has pyroelectric monitor module and insulation bigness scale module to be electrically connected with high tension voltage monitoring modular, equipment respectively, and high tension voltage monitoring modular, equipment have the pyroelectric monitor module to be connected with AD converter respectively with insulation bigness scale module; AD converter and chip microprocessor interconnect.
Described indicating circuit is electrically connected with indication panel, and indication panel is installed in body surface; Indication panel is provided with relay indicating light, the low pilot lamp that insulated, equipment have electric pilot lamp, measure pilot lamp, supply voltage is crossed low pilot lamp, and each pilot lamp is connected with indicating circuit.
The described body outside is provided with the hook that is complementary with the megohmmeter binding post.
Carry out before the insulation measurement with megohmmeter, circuit-under-test and megohmmeter disconnect, and judge by the high tension voltage monitoring modular whether megohmmeter starts, if megohmmeter starts, the chip microprocessor opertaing device has the pyroelectric monitor module to judge whether equipment under test has electricity, and indicates by indicating circuit; If circuit-under-test does not power up, will carry out the low-voltage insulation bigness scale to equipment under test, judge whether insulation is low excessively, and provide indication; If circuit-under-test does not power up, simultaneously the bigness scale result insulated lowly, and then control circuit is connected megohmmeter high-voltage output end and equipment under test, can carry out the normal insulation detection, reads insulation values on megohmmeter; Otherwise, forbid that the high pressure of megohmmeter output enters equipment under test.
Good effect of the present invention is: The present invention be directed to the problem that electrical equipment must be noted when insulation measurement, solve apparatus insulated intelligence, the protective device of security measurement, whether this device can detect the equipment that need carry out insulation measurement charged, stops the charged insulation of measuring; This device can detect need carry out the apparatus insulated whether low excessively of insulation measurement, prevents the damage of megohmmeter high pressure to the equipment under test circuit; This device is earlier with the insulation of low pressure preliminary surveying equipment under test, and this device provides corresponding prompt simultaneously; This device testing process is all handled in real time by chip microprocessor, and whole attachment device intellectuality and security are guaranteed; This device is the attachment device of megohmmeter, patches conveniently, does not influence megohmmeter measuring accuracy and insulation measurement process.
Description of drawings
The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.
Fig. 1 is a structure principle chart of the present invention
Fig. 2 is an indication panel structural drawing of the present invention
Fig. 3 is that the present invention operates scheme of installation
1 chip microprocessor, 2 control circuits, 3 change-over circuits among the figure
4 high tension voltage monitoring modulars, 5 equipment have the pyroelectric monitor module
6 insulation bigness scale module 7AD converters, 8 indicating circuits
9 alarms, 10 bodies, 11 indication panels
12 relay indicating lights 13 insulated and hanged down pilot lamp
14 equipment have electric pilot lamp 15 to measure pilot lamp
16 supply voltages are crossed low pilot lamp 17 hooks
Embodiment
As shown in Figure 1, insulated detection and intelligent safety protection device of electric equipment of the present invention is made up of pyroelectric monitor module 5, insulation bigness scale module 6, AD converter 7, indicating circuit 8 and alarm 9 chip microprocessor 1, control circuit 2, change-over circuit 3, high tension voltage monitoring modular 4, equipment; In body 10, chip microprocessor 1 is electrically connected with control circuit 2, indicating circuit 8 and alarm 9; Control circuit 2 is electrically connected with change-over circuit 3, change-over circuit 3 has pyroelectric monitor module 5 and insulation bigness scale module 6 to be electrically connected with high tension voltage monitoring modular 4, equipment respectively, and high tension voltage monitoring modular 4, equipment have pyroelectric monitor module 5 to be connected with AD converter 7 respectively with insulation bigness scale module 6; AD converter 7 interconnects with chip microprocessor 1.
Described indicating circuit 8 is electrically connected with indication panel 11, and indication panel 11 is installed in body 10 surfaces, sees Fig. 2 and Fig. 3; Indication panel 11 is provided with relay indicating light 12, the low pilot lamp 13 that insulated, equipment have electric pilot lamp 14, measure pilot lamp 15, supply voltage is crossed low pilot lamp 16, and each pilot lamp is connected with indicating circuit 8.
Described body 10 outsides are provided with the hook 17 that is complementary with the megohmmeter binding post, be mounted on the megohmmeter binding post as long as will link up with 17 during assembling, lead be connected to equipment under test get final product, see Fig. 3, after profile of the present invention is done simple modifications, also be applicable to digital megohmmeter.
Method of operating of the present invention is as follows:
1,, insulated detection and intelligent safety protection device of electric equipment of the present invention is installed on the megohmmeter according to shown in Figure 3.
2, with lead with the present invention with on equipment under test is connected.
3, begin normal measurement insulation resistance, clockwise direction is rotated the megohmmeter handle, and the present invention's this moment detects the high pressure output of megohmmeter, starts the work of this protective device, device judges at first whether equipment under test has electricity, exports low pressure bigness scale equipment under test insulation resistance then.
If 4 equipment under tests have electricity, it is bright that then equipment has electric pilot lamp 14, and whether the operator must cut off the power supply by checkout facility, and closes the equipment under test power supply and just can proceed insulation measurement.
If 5 equipment under test bigness scale insulation resistances are low excessively, the low pilot lamp 13 that then insulated is bright.
If 6 equipment do not power up, the bigness scale insulation resistance neither be low excessively, and it is bright then to measure pilot lamp 15, and promptly rotatable megohmmeter handle is measured.
7, measured pilot lamp 15 bright 10 seconds continuously, on megohmmeter, read insulation values during this period, so be greater than 10 seconds the duplicate measurements insulation gap time.
8, supply voltage is crossed low pilot lamp 16 and is represented that battery electric quantity is low when bright, should in time change battery.
Claims (3)
1. insulated detection and intelligent safety protection device of electric equipment is characterized in that: it has pyroelectric monitor module (5), insulation bigness scale module (6), AD converter (7), indicating circuit (8) and alarm (9) to form by chip microprocessor (1), control circuit (2), change-over circuit (3), high tension voltage monitoring modular (4), equipment; In body (10), chip microprocessor (1) is electrically connected with control circuit (2), indicating circuit (8) and alarm (9); Control circuit (2) is electrically connected with change-over circuit (3), change-over circuit (3) has pyroelectric monitor module (5) and insulation bigness scale module (6) to be electrically connected with high tension voltage monitoring modular (4), equipment respectively, and high tension voltage monitoring modular (4), equipment have pyroelectric monitor module (5) to be connected with AD converter (7) respectively with insulation bigness scale module (6); AD converter (7) interconnects with chip microprocessor (1).
2. according to the described insulated detection and intelligent safety protection device of electric equipment of claim 1, it is characterized in that: described indicating circuit (8) is electrically connected with indication panel (11), and indication panel (11) is installed in body (10) surface; Indication panel (11) is provided with relay indicating light (12), the low pilot lamp (13) that insulated, equipment have electric pilot lamp (14), measure pilot lamp (15), supply voltage is crossed low pilot lamp (16), and each pilot lamp is connected with indicating circuit (8).
3. according to the described insulated detection and intelligent safety protection device of electric equipment of claim 1, it is characterized in that: described body (10) outside is provided with the hook (17) that is complementary with the megohmmeter binding post.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010137423XA CN101907679A (en) | 2010-04-01 | 2010-04-01 | Insulated detection and intelligent safety protection device of electric equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010137423XA CN101907679A (en) | 2010-04-01 | 2010-04-01 | Insulated detection and intelligent safety protection device of electric equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101907679A true CN101907679A (en) | 2010-12-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010137423XA Pending CN101907679A (en) | 2010-04-01 | 2010-04-01 | Insulated detection and intelligent safety protection device of electric equipment |
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| Country | Link |
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| CN (1) | CN101907679A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104297652A (en) * | 2014-11-12 | 2015-01-21 | 国网河南省电力公司南阳供电公司 | Device for high-voltage insulation test of insulation rods in batch |
| CN111273147A (en) * | 2020-03-17 | 2020-06-12 | 神华国能集团有限公司 | Insulation measuring device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5936419A (en) * | 1997-06-05 | 1999-08-10 | Extech Electronics Co., Ltd. | Test method and apparatus utilizing reactive charging currents to determine whether a test sample is properly connected |
| CN1356557A (en) * | 2000-12-08 | 2002-07-03 | 哈尔滨九洲电气股份有限公司 | Intelligent insulation tester for DC system |
| CN201000467Y (en) * | 2007-01-19 | 2008-01-02 | 保定博为科技有限公司 | Microcomputer DC system insulation online monitoring device |
-
2010
- 2010-04-01 CN CN201010137423XA patent/CN101907679A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5936419A (en) * | 1997-06-05 | 1999-08-10 | Extech Electronics Co., Ltd. | Test method and apparatus utilizing reactive charging currents to determine whether a test sample is properly connected |
| CN1356557A (en) * | 2000-12-08 | 2002-07-03 | 哈尔滨九洲电气股份有限公司 | Intelligent insulation tester for DC system |
| CN201000467Y (en) * | 2007-01-19 | 2008-01-02 | 保定博为科技有限公司 | Microcomputer DC system insulation online monitoring device |
Non-Patent Citations (1)
| Title |
|---|
| 王水成: "兆欧表的正确使用", 《大众用电》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104297652A (en) * | 2014-11-12 | 2015-01-21 | 国网河南省电力公司南阳供电公司 | Device for high-voltage insulation test of insulation rods in batch |
| CN111273147A (en) * | 2020-03-17 | 2020-06-12 | 神华国能集团有限公司 | Insulation measuring device |
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Application publication date: 20101208 |