CN105182173A - Novel combined-type mutual inductor polarity tester - Google Patents
Novel combined-type mutual inductor polarity tester Download PDFInfo
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- CN105182173A CN105182173A CN201510484128.4A CN201510484128A CN105182173A CN 105182173 A CN105182173 A CN 105182173A CN 201510484128 A CN201510484128 A CN 201510484128A CN 105182173 A CN105182173 A CN 105182173A
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Abstract
The invention provides a novel combined-type mutual inductor polarity tester and belongs to the mutual inductor test device field. The tester comprises a panel and a shell. The panel is installed on the shell. The panel is provided with primary side interfaces, a secondary side interface, an ammeter interface, an indicating lamp A, an indicating lamp B, a selection switch, a test switch and a point-touch switch. A cell is arranged in the shell. A positive electrode and a negative electrode of the cell are connected to the two primary side interfaces through the selection switch and the point-touch switch respectively. One output terminal of the selection switch is connected to one primary side interface successively through the indicating lamp A and a protection resistor. The other output terminal of the selection switch is directly connected to one primary side interface. The positive electrode of the cell is connected to one secondary side interface successively through the test switch, the indicating lamp B and the protection resistor. Whether wiring is successful can be detected at any time and whether an ammeter is inversely connected can be detected so that detection efficiency is greatly increased.
Description
Technical field
The invention provides a kind of Novel composite mutual inductor polarity tester, belong to mutual inductor measuring electricity testing device field.
Background technology
In electric system, the polarity test of current transformer is extremely important.It is the basic premise ensureing protective relaying device correct operation and accurate measurement, at present, carrys out the polarity of measuring current mutual inductor during conventional method with 2 pieces of dry cells and 1 indicator type current meter.
Operation field, after mutual inductor is contained in metering cabinet usually, and before electric energy meter and terminal box be contained in metering cabinet, when measuring current mutual inductor polarity, one people is at the primary side of high-voltage mutual inductor, dry cell is utilized to be connected the inlet wire of current transformer and the limit phase of leading-out terminal or voltage transformer (VT) and middle phase with wire, then carry out switching operation, with the yawing moment that multimeter pointer is observed into and out of line in corresponding Current Transformer Secondary side in pointer multimeter aligning terminal box, another people judges that whether wiring polarity is correct simultaneously.Because combined instrument transformer one secondary coil is all sealed in the metal shell of ground connection, contact distance shell 20cm distance, existing transformer test instrument primary connection is difficult to be deep into mutual inductor contact, the contact of tester is added an extension lead and stretches into a contact by usual needs 2 to 3 people, but we cannot judge whether reliable contacts, in addition, mutual inductor secondary terminals S1, S2 is connected to table tail terminal box K1, K2 secondary wiring, usually a terminal block or switch can be added, broken string situation may be there is, also likely occur that S1 receives K2, S2 receives the situation of K1, in the process of test mutual inductor polarity, when after connection primary side power supply, if the ammeter pointer being connected to table tail does not deflect, because combined instrument transformer contact is bad when we cannot judge, or because the contact before metering cabinet does not connect, or breaking appears in the wire between mutual inductor secondary side and electric energy meter, existing polarity test instrument can not effectively solve the problem, we progressively can only be investigated by multimeter and ask trouble spot.
Summary of the invention
Whether the object of the invention is to provide a kind of Novel composite mutual inductor polarity tester, can detect wiring whether success at any time, and can detect reometer and connect instead, improves detection efficiency greatly.
Novel composite mutual inductor polarity tester of the present invention, comprise panel and shell, erecting of panel is on shell, panel is provided with primary side interface, secondary side interface, reometer interface, pilot lamp A, pilot lamp B, selector switch, Test Switchboard and point-touch switch, battery is provided with in shell, the positive pole of battery and negative pole are connected to two primary side interfaces respectively by selector switch and point-touch switch, an output terminal of selector switch is connected to a primary side interface by pilot lamp A and protective resistance successively, another output terminal of selector switch is directly connected to a primary side interface, the positive pole of battery passes through Test Switchboard successively, pilot lamp B and protective resistance are connected to a secondary side interface, battery cathode is directly connected to another secondary side interface, two secondary side interfaces are connected respectively to two reometer interfaces, primary side interface, secondary side interface and reometer interface are by connecting line and Devices to test primary side, secondary side and ammeter connect.
Described Novel composite mutual inductor polarity tester, after being connected with needing the joint of the current transformer measured, the two-way of selector switch exports corresponding test gear and operation range respectively, when selector switch pushes test shelves, namely the input end of selector switch is connected with the output terminal being connected pilot lamp A, when action personnel press point-touch switch, if pilot lamp A does not work, represent primary side wiring and do not connect, if pilot lamp lights, represent wiring success, in secondary side, can judge with same principle whether secondary side wiring connects by closed Test Switchboard, reometer interface is connected to after on the reometer on measuring screen, can judge that whether ammeter wiring direction is correct by closed Test Switchboard equally, if the display of wiring correct reometer on the occasion of, if reversal connection reometer display negative value, judge wiring whether success and ammeter wiring whether correct after, selector switch can be adjusted on work shelves, namely battery and primary side contact are directly connected, by pressing point-touch switch, and whether the wiring watching the beat of pointer walking direction current transformer of reometer is correct, the simple cost of whole device structure is low, and any problem that can occur in testing process, do not need to investigate one by one, improve detection efficiency greatly.
Described Novel composite mutual inductor polarity tester, panel is provided with reometer, and reometer is milliampere level reometer, and reometer interface is connected to the interface on reometer.Can on panel integrated current table, shortened the length of wire, directly can use the reometer on panel, made observed data also convenient.
Described Novel composite mutual inductor polarity tester, primary side interface, connecting line between secondary side interface and Devices to test comprise wire, wire one end is provided with connection plug, the wire other end is provided with special joint, special joint comprises insulation course, insulation course one end is provided with conductive head, and the insulation course other end is connected with handle by shading ring, and the core of wire is connected to copper conductive head through handle, separation layer and insulation course.When testing, conductive head made of copper is contacted with the contact of mutual inductor, other positions are insulation, improve security, install shading ring additional simultaneously and isolate, effectively can ensure the personal safety of staff between handle and insulation course.
The present invention compared with prior art beneficial effect is:
Described Novel composite mutual inductor polarity tester, after being connected with needing the joint of the current transformer measured, the two-way of selector switch exports corresponding test gear and operation range respectively, when selector switch pushes test shelves, namely the input end of selector switch is connected with the output terminal being connected pilot lamp A, when action personnel press point-touch switch, if pilot lamp A does not work, represent primary side wiring and do not connect, if pilot lamp lights, represent wiring success, in secondary side, can judge with same principle whether secondary side wiring connects by closed Test Switchboard, reometer interface is connected to after on the reometer on measuring screen, can judge that whether ammeter wiring direction is correct by closed Test Switchboard equally, if the display of wiring correct reometer on the occasion of, if reversal connection reometer display negative value, judge wiring whether success and ammeter wiring whether correct after, selector switch can be adjusted on work shelves, namely battery and primary side contact are directly connected, by pressing point-touch switch, and whether the wiring watching the beat of pointer walking direction current transformer of reometer is correct, the simple cost of whole device structure is low, and any problem that can occur in testing process, do not need to investigate one by one, improve detection efficiency greatly.
Accompanying drawing explanation
Fig. 1 is panel construction schematic diagram;
Fig. 2 is electrical schematic diagram of the present invention;
Fig. 3 is connecting wire structure schematic diagram.
In figure: 1, panel; 2, primary side interface; 3, secondary side interface; 4, reometer interface; 5, pilot lamp A; 6, pilot lamp B; 7, selector switch; 8, Test Switchboard; 9, point-touch switch; 10, battery; 11, connection plug; 12, insulation course; 13, conductive head; 14, shading ring; 15, handle; 16, Devices to test; 17, wire.
Embodiment
Below in conjunction with the present invention, the embodiment of the present invention is described further:
Embodiment 1: as Fig. 1 and shown, Novel composite mutual inductor polarity tester of the present invention, comprise panel 1 and shell, panel 1 is arranged on shell, panel 1 is provided with primary side interface 2, secondary side interface 3, reometer interface 4, pilot lamp A5, pilot lamp B6, selector switch 7, Test Switchboard 8 and point-touch switch 9, battery 10 is provided with in shell, the positive pole of battery 10 and negative pole are connected to two primary side interfaces 2 respectively by selector switch 7 and point-touch switch 9, an output terminal of selector switch 7 is connected to a primary side interface 2 by pilot lamp A5 and protective resistance successively, another output terminal of selector switch 7 is directly connected to a primary side interface 2, the positive pole of battery 10 is successively by Test Switchboard 8, pilot lamp B6 and protective resistance are connected to a secondary side interface 3, battery 10 negative pole is directly connected to another secondary side interface 3, two secondary side interfaces 3 are connected respectively to two reometer interfaces 4, primary side interface 2, secondary side interface 3 and reometer interface 4 are by connecting line and Devices to test 16 primary side, secondary side and ammeter connect.
Embodiment 2: on the architecture basics described in embodiment 1, panel 1 is provided with reometer, and reometer is milliampere level reometer, and reometer interface is connected to the interface on reometer.
Embodiment 3: on the architecture basics described in embodiment 2, as shown in Figure 3, primary side interface 2, connecting line between secondary side interface 3 and Devices to test 16 comprise wire 17, wire 17 one end is provided with connection plug 11, wire 17 other end is provided with special joint, special joint comprises insulation course 12, insulation course 12 one end is provided with conductive head 13, insulation course 12 other end is connected with handle 15 by shading ring 14, and the core of wire 17 is connected to copper conductive head 13 through handle 15, shading ring 14 and insulation course 12.
Claims (3)
1. a Novel composite mutual inductor polarity tester, comprise panel (1) and shell, panel (1) is arranged on shell, it is characterized in that, panel (1) is provided with primary side interface (2), secondary side interface (3), reometer interface (4), pilot lamp A (5), pilot lamp B (6), selector switch (7), Test Switchboard (8) and point-touch switch (9), battery (10) is provided with in shell, the positive pole of battery (10) and negative pole are connected to two primary side interfaces (2) respectively by selector switch (7) and point-touch switch (9), an output terminal of selector switch (7) is connected to a primary side interface (2) by pilot lamp A (5) and protective resistance successively, selector switch (7) another output terminal is directly connected to a primary side interface (2), the positive pole of battery (10) is successively by Test Switchboard (8), pilot lamp B (6) and protective resistance are connected to a secondary side interface (3), battery (10) negative pole is directly connected to another secondary side interface (3), two secondary side interfaces (3) are connected respectively to two reometer interfaces (4), primary side interface (2), secondary side interface (3) and reometer interface (4) are by connecting line and Devices to test (16) primary side, secondary side and ammeter connect.
2. Novel composite mutual inductor polarity tester according to claim 1, is characterized in that, panel (1) is provided with reometer, and reometer is milliampere level reometer, and reometer interface (4) is connected to the interface on reometer.
3. Novel composite mutual inductor polarity tester according to claim 1, it is characterized in that, primary side interface (2), connecting line between secondary side interface (3) and Devices to test (16) comprises wire (17), wire (17) one end is provided with connection plug (11), wire (17) other end is provided with special joint, special joint comprises insulation course (12), insulation course (12) one end is provided with conductive head (13), insulation course (12) other end is connected with handle (15) by shading ring (14), the core of wire (17) is through handle (15), separation layer and insulation course (12) are connected to copper conductive head (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510484128.4A CN105182173B (en) | 2015-08-07 | 2015-08-07 | Novel composite mutual inductor polarity tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510484128.4A CN105182173B (en) | 2015-08-07 | 2015-08-07 | Novel composite mutual inductor polarity tester |
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| Publication Number | Publication Date |
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| CN105182173A true CN105182173A (en) | 2015-12-23 |
| CN105182173B CN105182173B (en) | 2018-08-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510484128.4A Active CN105182173B (en) | 2015-08-07 | 2015-08-07 | Novel composite mutual inductor polarity tester |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110286295A (en) * | 2019-05-13 | 2019-09-27 | 国家电网有限公司 | A kind of direct current feed control panel branch CT polarity test device and method |
| CN112147563A (en) * | 2020-08-27 | 2020-12-29 | 国网山西省电力公司阳泉供电公司 | Fault electric meter tester |
| CN112505593A (en) * | 2020-10-13 | 2021-03-16 | 国网浙江省电力有限公司绍兴供电公司 | Measuring loop polarity check instrument |
| CN115421080A (en) * | 2022-09-21 | 2022-12-02 | 国网山东省电力公司淄博供电公司 | Low-voltage current transformer wiring inspection tester |
Citations (6)
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| US4272725A (en) * | 1979-05-03 | 1981-06-09 | Electronics Corporation Of America | Interface circuit for use with electronic control devices |
| CN201327522Y (en) * | 2008-12-17 | 2009-10-14 | 河南省电力公司商丘供电公司 | Polarity tester of electromagnetic type current transformer |
| CN103576041A (en) * | 2012-08-07 | 2014-02-12 | 国家电网公司 | Method and device for detecting electrical equipment secondary circuit |
| CN203535165U (en) * | 2013-11-18 | 2014-04-09 | 国网新彊电力公司奎屯供电公司 | Portable current transformer polarity tester |
| CN203849351U (en) * | 2013-11-28 | 2014-09-24 | 国网河南省电力公司鹤壁供电公司 | Direct current low_voltage tester |
| CN204832412U (en) * | 2015-08-07 | 2015-12-02 | 国网山东省电力公司淄博供电公司 | Novel combined instrument transformer polarity test appearance |
-
2015
- 2015-08-07 CN CN201510484128.4A patent/CN105182173B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4272725A (en) * | 1979-05-03 | 1981-06-09 | Electronics Corporation Of America | Interface circuit for use with electronic control devices |
| CN201327522Y (en) * | 2008-12-17 | 2009-10-14 | 河南省电力公司商丘供电公司 | Polarity tester of electromagnetic type current transformer |
| CN103576041A (en) * | 2012-08-07 | 2014-02-12 | 国家电网公司 | Method and device for detecting electrical equipment secondary circuit |
| CN203535165U (en) * | 2013-11-18 | 2014-04-09 | 国网新彊电力公司奎屯供电公司 | Portable current transformer polarity tester |
| CN203849351U (en) * | 2013-11-28 | 2014-09-24 | 国网河南省电力公司鹤壁供电公司 | Direct current low_voltage tester |
| CN204832412U (en) * | 2015-08-07 | 2015-12-02 | 国网山东省电力公司淄博供电公司 | Novel combined instrument transformer polarity test appearance |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110286295A (en) * | 2019-05-13 | 2019-09-27 | 国家电网有限公司 | A kind of direct current feed control panel branch CT polarity test device and method |
| CN110286295B (en) * | 2019-05-13 | 2021-07-06 | 国家电网有限公司 | Direct current feed screen branch CT polarity testing device and method |
| CN112147563A (en) * | 2020-08-27 | 2020-12-29 | 国网山西省电力公司阳泉供电公司 | Fault electric meter tester |
| CN112505593A (en) * | 2020-10-13 | 2021-03-16 | 国网浙江省电力有限公司绍兴供电公司 | Measuring loop polarity check instrument |
| CN115421080A (en) * | 2022-09-21 | 2022-12-02 | 国网山东省电力公司淄博供电公司 | Low-voltage current transformer wiring inspection tester |
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| CN105182173B (en) | 2018-08-28 |
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