CN201273932Y - AC withstand voltage testing instrument - Google Patents
AC withstand voltage testing instrument Download PDFInfo
- Publication number
- CN201273932Y CN201273932Y CNU2008201101762U CN200820110176U CN201273932Y CN 201273932 Y CN201273932 Y CN 201273932Y CN U2008201101762 U CNU2008201101762 U CN U2008201101762U CN 200820110176 U CN200820110176 U CN 200820110176U CN 201273932 Y CN201273932 Y CN 201273932Y
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- China
- Prior art keywords
- current
- stepup transformer
- pressure regulator
- transformer
- output
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model provides an alternating current withstanding voltage tester, relates to technical field of testing which is not included in other kinds. The alternating current withstanding voltage tester is characterized in that a booster (DC), a regulator (TD) and a standard voltmeter (V) are connected together, and are installed inside the casing (3) of a box, and alternating current withstanding voltage tester also comprises a constant voltage and constant current power supply, a current protection element and an operation indication element. After the alternating current 220V passes through the constant voltage and constant current power supply, the alternating current 220V is connected in series with the regulator (TD) and the booster (DC) in turn. The output of the booster (DC) is connected with a testing lead wire (HV) to display data. At the same time the output of the booster (DC) is fed back to the constant voltage and constant current power supply after passing through a current relay (I) to protect the current. The constant voltage and constant current power supply, the booster (DC), the regulator (TD) and the current relay (I) are installed inside the casing (3) of the box with wheels 970. The operation indication element is installed on the panel of the box casing (3).
Description
Technical field
The utility model is a kind of ac voltage withstanding tester.Relate to other class technical field of measurement and test not to be covered.
Background technology
Usually need insulating tool, electrical equipment etc. is regularly made resistance test at commercial production first line, to guarantee safety.Existing resistance test does not also have complete can be pressurized to the instrument that the above high pressure of 50KV is done voltage-withstand test to insulating tool, electrical equipment, all is to be made up by device contexts such as pressure regulator, voltage table, stepup transformers to do experiment, and meets the requirements of electric pressure.This just exists following problem:
1) equipment splits such as stepup transformer, pressure regulator, voltage table need field wiring; Every make one-time detection must wiring, take out stitches once, and move inconveniently, be very much trouble;
2) there is not the indication of starting and stopping button and equipment operation; Can not expand capacity;
3) field wiring complexity is made mistakes easily, and field wiring easily causes the connecting line insulation breakdown;
4) various single devices are not easy to transportation, easily bump in transit, damage easily;
5) not protection is dangerous big;
6) need a plurality of power supply single power supplies;
7),, bring a lot of troubles to electrical test work to on-the-spot bad making often indoor handy.
The utility model content
To be that design is a kind of carry out the ac voltage withstanding tester that voltage-withstand test is easy to loading and unloading, simple to operate, testing crew had safety assurance to insulating tool, electrical equipment etc. to the purpose of this utility model.
The utility model is on bases such as original scattered stepup transformer DC, pressure regulator TD, normal voltage Table V, their is connected, is installed in the chest, and increase constant voltage constant current power, current protection, operation indication components and parts and form.Its formation mainly is made up of constant voltage constant current power, stepup transformer DC, pressure regulator TD, current relay I, chest shell 3, wheel 7 as shown in Figure 1.Alternating current 220V is connected in series pressure regulator TD, stepup transformer DC successively behind constant voltage constant current power, stepup transformer DC output is connected to test specimen lead HV, video data; Stepup transformer DC output simultaneously feeds back to constant voltage constant current power through current relay I, carries out current protection.Constant voltage constant current power, stepup transformer DC, pressure regulator TD, current relay I are installed in the chest shell 3 of wheel 7, and operation indication components and parts are installed on the panel of chest shell 3.
Its circuit constitutes as shown in Figure 2, and it is made up of power switch DL, operating power K switch A, trip button TA, switch knob HA, run indicator HD, stoppage in transit pilot lamp LD, A.C. contactor C, stepup transformer DC, pressure regulator TD, current transformer CT, current relay I, normal voltage Table V, test specimen lead HV.Exchange two line L of single-phase electricity, M is behind power switch DL, beading process power switch KA successively on one line M, be connected to the current relay I of the current transformer CT that is connected on the M line, the switch knob HA of ac contactor coil C in parallel and HD and parallel connection and A.C. contactor normally opened contact C connect and stoppage in transit pilot lamp LD that connects and A.C. contactor normally closed contact C parallel connection again, receive behind the trip button TA on another line L, two line L that exchange, M connects pressure regulator TD input through A.C. contactor C again, pressure regulator TD output meets stepup transformer DC, and stepup transformer DC is output as ground wire and test specimen lead HV; Stepup transformer DC output is connected to the normal voltage Table V.
This ac voltage withstanding tester structure such as Fig. 3 are shown in Figure 4,3 li of the rectangular box subshells that four chest handles 4 are arranged, stepup transformer DC and pressure regulator TD are installed in two ends respectively, on support frame 6 built on stilts between these two, A.C. contactor C is installed successively, current transformer CT, current relay I, and between stepup transformer DC and A.C. contactor C and stepup transformer DC and chest shell 3 be separated with insulating barrier 1, A.C. contactor C, current transformer CT, the top installation code voltage table V of current relay I, the test specimen lead HV that stepup transformer DC draws pass and are with insulated ring 5 holes on the insulating barrier 1 in the outside; The panel of chest shell 3 such as Fig. 4 by ordinary practice, see that from above stepup transformer DC is last, and the one side has protective ground 2 sockets; There is the dial plate of normal voltage Table V at middle part under stepup transformer DC insulating barrier 1, and respectively there are power switch DL, stoppage in transit pilot lamp LD and run indicator HD, operating power K switch A in the both sides of normal voltage Table V; The bottom of panel is the adjusting knob of pressure regulator TD, on one side it has supply socket 8, its inferior horn has trip button TA and switch knob HA.
Advantage of the present utility model:
1) saved field wiring;
2) earth leakage protection and overcurrent protection are arranged, improved personal safety is guaranteed;
3) be convenient to loading and unloading;
4) wheel is arranged at the test apparatus bottom, is convenient to on-the-spot mobile to the distinct device test;
5) be integrated in the casing, had protection not fragile equipment itself;
6) indication of start-stop button and equipment operation is arranged.
Description of drawings
Fig. 1 ac voltage withstanding tester theory diagram
Fig. 2 ac voltage withstanding tester electrical schematic diagram
Fig. 3 ac voltage withstanding tester mounting arrangement figure
Fig. 4 ac voltage withstanding tester panel figure
DL-power switch KA-operating power switch wherein
TA-trip button HA-switch knob
HD-run indicator LD-stoppage in transit pilot lamp
C-A.C. contactor DC-stepup transformer
TD-pressure regulator CT-current transformer
I-current relay V-standard voltmeter
HV-test specimen lead
2-the protective ground of 1-insulating barrier
3-chest shell, 4-chest handle
5-insulated ring, 6-support frame
8-the supply socket of 7-wheel
Embodiment
Embodiment.This example is an experimental prototype, and it constitutes electrical schematic diagram as shown in Figure 2.It is made up of power switch DL, operating power K switch A, trip button TA, switch knob HA, run indicator HD, stoppage in transit pilot lamp LD, A.C. contactor C, stepup transformer DC, pressure regulator TD, current transformer CT, current relay I, normal voltage Table V, test specimen lead HV.Exchange two line L of single-phase electricity, M is behind power switch DL, beading process power switch KA successively on one line M, be connected to the current relay I of the current transformer CT that is connected on the M line, the switch knob HA of ac contactor coil C in parallel and HD and parallel connection and A.C. contactor normally opened contact C connect and stoppage in transit pilot lamp LD that connects and A.C. contactor normally closed contact C parallel connection again, receive behind the trip button TA on another line L, two line L that exchange, M connects pressure regulator TD input through A.C. contactor C again, pressure regulator TD output meets stepup transformer DC, and stepup transformer DC is output as ground wire and test specimen lead HV; Stepup transformer DC output is connected to the normal voltage Table V.
Wherein:
Power switch DL selects DZ47-20A;
Operating power K switch A selects DZ47-10A;
The stepup transformer capacity selects 50A * 100mA=5kVA; 50KV/0.2KV;
Pressure regulator TD selects 5kVA (TDGC2-2);
Current transformer CT selects 25/5A;
5A is adopted in current relay I choosing;
The normal voltage Table V is selected 250V/2V;
Weight: 35 kilograms of gross weights.
The mounting structure of ac voltage withstanding tester as shown in Figure 3, the panel of chest is as shown in Figure 4.Above panel, stepup transformer DC is last, and the one side has protective ground 2 sockets; There is the dial plate of normal voltage Table V at middle part under stepup transformer DC insulating barrier 1, and respectively there are power switch DL, stoppage in transit pilot lamp LD and run indicator HD, operating power K switch A in the both sides of normal voltage Table V; The bottom of panel is the adjusting knob of pressure regulator TD, on one side it has supply socket 8, its inferior horn has trip button TA and switch knob HA.
The equipment that this example need be done withstand voltage test to insulating tool, lightning arrester etc. is repeatedly tested, and has saved field wiring in test, is convenient to loading and unloading; Equipment integration has had protection to equipment itself in a casing, not fragile; Because of wheel is arranged at the chest bottom, move the test of distinct device at convenient scene; Earth leakage protection and overcurrent protection are arranged, improved personal safety is guaranteed; It is a kind of simple and practical instrument.Application prospect is very extensive and permanent, because lightning arrester and insulating tool all will carry out one time voltage-withstand test every year, but also can expand electric pressure and capacity, and it is higher to arrive 80kV, 100kV or 8kVA, 10kVA and even voltage, and capacity is bigger.
Claims (2)
1. ac voltage withstanding tester, comprise stepup transformer (DC), pressure regulator (TD), standard voltmeter (V), it is characterized in that stepup transformer (DC), pressure regulator (TD), standard voltmeter (V) are connected, are installed in the chest, and increase constant voltage constant current power, current protection, operation indication components and parts and form; It mainly is made up of constant voltage constant current power, stepup transformer (DC), pressure regulator (TD), current relay (I), chest shell (3), wheel (7); Alternating current 220V is connected in series pressure regulator (TD), stepup transformer (DC) successively behind constant voltage constant current power, stepup transformer (DC) output is connected to test specimen lead (HV), video data; Stepup transformer (DC) output simultaneously feeds back to constant voltage constant current power through current relay (I), carries out current protection; (DCO, pressure regulator (TD), current relay (I) are installed in the chest shell (3) of wheel (7), and operation indication components and parts are installed on the panel of chest shell (3) for constant voltage constant current power, stepup transformer.
2. ac voltage withstanding tester according to claim 1 is characterized in that its circuit constitutes to be made up of power switch (DL), operating power switch (KA), trip button (TA), switch knob (HA), run indicator (HD), stoppage in transit pilot lamp (LD), A.C. contactor (C), stepup transformer (DC), pressure regulator (TD), current transformer (CT), current relay (I), standard voltmeter (V), test specimen lead (HV); Exchange two lines (L) of single-phase electricity, (M) behind power switch (DL), beading process power switch (KA) successively on one line (M), be connected to the current relay (I) of the current transformer (CT) that is connected on (M) line, ac contactor coil (C) in parallel and (HD) connect with the switch knob (HA) of parallel connection and A.C. contactor normally opened contact (C) again and stoppage in transit pilot lamp (LD) of connecting and A.C. contactor normally closed contact (C) parallel connection, receive after the trip button (TA) on another line (L), two lines (L) that exchange, (M) connect pressure regulator (TD) input through A.C. contactor (C) again, pressure regulator (TD) output connects stepup transformer (DC), and stepup transformer (DC) is output as ground wire and test specimen lead (HV); Stepup transformer (DC) output is connected to standard voltmeter (V).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201101762U CN201273932Y (en) | 2008-09-11 | 2008-09-11 | AC withstand voltage testing instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201101762U CN201273932Y (en) | 2008-09-11 | 2008-09-11 | AC withstand voltage testing instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201273932Y true CN201273932Y (en) | 2009-07-15 |
Family
ID=40884278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201101762U Expired - Lifetime CN201273932Y (en) | 2008-09-11 | 2008-09-11 | AC withstand voltage testing instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201273932Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101937050A (en) * | 2010-09-28 | 2011-01-05 | 达州电业局 | Portable multifunctional insulated instrument test rack |
| CN102004215A (en) * | 2010-12-13 | 2011-04-06 | 南京民盛电子仪器有限公司 | Withstand voltage tester with earthed testing end |
| CN102419410A (en) * | 2011-08-19 | 2012-04-18 | 云南电力试验研究院(集团)有限公司 | Voltage/current double-applying testing device for electric device |
| CN101762776B (en) * | 2009-11-30 | 2013-01-30 | 福建星网锐捷网络有限公司 | Method and device for testing voltage withstanding degree of port |
| CN103675545A (en) * | 2013-12-11 | 2014-03-26 | 广西新未来信息产业股份有限公司 | Silicon carbide rod test machine |
| CN108387828A (en) * | 2018-05-30 | 2018-08-10 | 南宁市高照电器有限责任公司 | A kind of ac voltage withstanding test device and its test method |
-
2008
- 2008-09-11 CN CNU2008201101762U patent/CN201273932Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101762776B (en) * | 2009-11-30 | 2013-01-30 | 福建星网锐捷网络有限公司 | Method and device for testing voltage withstanding degree of port |
| CN101937050A (en) * | 2010-09-28 | 2011-01-05 | 达州电业局 | Portable multifunctional insulated instrument test rack |
| CN101937050B (en) * | 2010-09-28 | 2013-05-22 | 四川省电力公司达州电业局 | Portable multifunctional insulated instrument test rack |
| CN102004215A (en) * | 2010-12-13 | 2011-04-06 | 南京民盛电子仪器有限公司 | Withstand voltage tester with earthed testing end |
| CN102419410A (en) * | 2011-08-19 | 2012-04-18 | 云南电力试验研究院(集团)有限公司 | Voltage/current double-applying testing device for electric device |
| CN103675545A (en) * | 2013-12-11 | 2014-03-26 | 广西新未来信息产业股份有限公司 | Silicon carbide rod test machine |
| CN108387828A (en) * | 2018-05-30 | 2018-08-10 | 南宁市高照电器有限责任公司 | A kind of ac voltage withstanding test device and its test method |
| CN108387828B (en) * | 2018-05-30 | 2023-09-29 | 南宁市高照电器有限责任公司 | Alternating-current withstand voltage testing device and testing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090715 |
|
| CX01 | Expiry of patent term |