CN203812124U - Voltage control box for withstand voltage test of circuit breaker - Google Patents
Voltage control box for withstand voltage test of circuit breaker Download PDFInfo
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- CN203812124U CN203812124U CN201420151089.7U CN201420151089U CN203812124U CN 203812124 U CN203812124 U CN 203812124U CN 201420151089 U CN201420151089 U CN 201420151089U CN 203812124 U CN203812124 U CN 203812124U
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Abstract
The utility model discloses a voltage control box for the withstand voltage test of a circuit breaker. The voltage control box comprises a voltage regulation circuit, a booster circuit, a near-end acousto-optical circuit, a far-end acousto-optical circuit and a voltage regulation control circuit, wherein the voltage regulation circuit is connected with the booster circuit and the near-end acousto-optical circuit respectively, and is connected with the voltage regulation control circuit through an external voltage regulation limiting motor; the near-end acousto-optical circuit is in Bluetooth communication with the far-end acousto-optical circuit, and is connected in parallel with the input end of the voltage regulation circuit. According to the voltage control box, the potential safety hazards and personal risks of other personnel around the site and particularly within an electrical connection range beyond the eyesight of an operator due to the fact of omissions of calling and singing before manual operation and ineffective monitoring can be effectively avoided; in addition, constant speed boosting and constant speed step-down can be implemented, so that the condition that the manual operation of an experienced operator is required in a boosting process of a conventional voltage control box is avoided, and the test difficulty is lowered.
Description
Technical field
The utility model relates to a kind of electrical test equipment, is specifically related to a kind of Control of Voltage case for isolating switch withstand voltage test.
Background technology
Electric system comprises numerous electrical equipments, and the fault of some electrical equipment even can threaten the safe power supply of whole system.Facts have proved of electrical production, carries out detection experiment work in accordance with regulations to electrical equipment, is to prevent trouble before it happens, and guarantees one of important measures of power system security, economical operation, and so-called " preventive trial " gains the name thus.The test of carrying out for the electrical equipment after new installation and overhaul, is called check test.Its objective is the quality of identifying electrical equipment itself and installation and overhaul.Check test is consistent with the object of preventive trial.Effect by test is different with requirement, and the test of electrical equipment can be divided into Insulation Test and the large class of attribute testing two.
Insulation Test: Insulation Test is carried out mainly for the insulation defect of equipment, the insulation defect of electrical equipment, hides during a kind of manufacture; A kind ofly under external influence, grow up.External influence has operating voltage, superpotential, humidity, mechanical force, heat effect, chemical action etc.
AC voltage withstand test is the most direct method of evaluation apparatus dielectric strength, and can it put into operation and have decisive meaning judgement electrical equipment, is also the important means that guarantees apparatus insulated level, avoids occurring insulation fault.According to < < power equipment hand-over and preventive test rules > > and < < power equipment field electrical test job instruction > >, stipulated that test condition, test method and the analysis of the conventional withstand voltage tests such as vacuum circuit breaker withstand voltage test judge requirement.Vacuum circuit breaker withstand voltage test, when the test period is divided into when handing-over, prerun or if desired, minute, carry out respectively under "on" position, in process of the test, should not occur any abnormal conditions, and the insulating resistance value after withstand voltage should be lower than the insulating resistance value before withstand voltage.
Existing withstand voltage test equipment comprises withstand voltage control device, when equipment is applied to voltage, can make Devices to test with high-tension electricity.And electric energy is sightless, with Devices to test and output unit hypotelorism even touching can cause casualties and the serious accident such as device damage.For fear of the generation of this type of situation, the mode of singing is manually exhaled in employing at present, before to equipment pressurization, warns, and makes clear and definite this region of on-the-spot all kinds of personnel carry out withstand voltage test, No nearing.For various ignorance factors, manually exhale to sing and may omit or sound passes on distance inadequate etc., still may cause the close of unrelated person, so need to improve accordingly this kind equipment.
Summary of the invention
The purpose of this utility model is to provide a kind of Control of Voltage case for isolating switch withstand voltage test, this Control of Voltage case can effectively be avoided the careless omission of singing due to exhaling before manual operation and guard ineffective causing around scene, especially other staff's potential safety hazard and personal risk within the scope of the untouchable electrical connection of operating personnel's sight.Simultaneously the utility model has adopted that electronic control is boosted, the far-end acousto-optic circuit of step-down, control direct motor drive voltage regulating module at the uniform velocity boosts, at the uniform velocity step-down, avoid conventional voltage control box to boost the veteran operating personnel people of process need for manual operation control, reduced test difficulty.
In order to achieve the above object, the utility model is achieved through the following technical solutions:
For a Control of Voltage case for isolating switch withstand voltage test, this Control of Voltage case comprises: regulating circuit, booster circuit; Be characterized in, this Control of Voltage case also comprises: near-end acousto-optic circuit, far-end acousto-optic circuit and voltage regulator control circuit.
Above-mentioned regulating circuit is connected with above-mentioned booster circuit, near-end acousto-optic circuit respectively; This regulating circuit is connected with above-mentioned voltage regulator control circuit by the spacing motor of outside pressure regulation; This near-end acousto-optic circuit and above-mentioned far-end acousto-optic circuit carry out communication by bluetooth; This near-end acousto-optic circuit is in parallel with the input end of above-mentioned regulating circuit.
The above-mentioned Control of Voltage case for isolating switch withstand voltage test, is characterized in, above-mentioned far-end acousto-optic circuit comprises: Bluetooth signal receiving trap, far-end speech prompting loudspeaker, bluetooth receiving trap contact switch, far-end warning lamp and power supply; Above-mentioned far-end speech prompting loudspeaker are in parallel with above-mentioned far-end warning lamp, and connect with above-mentioned bluetooth receiving trap contact switch; Above-mentioned Bluetooth signal receiving trap is in parallel with above-mentioned bluetooth receiving trap contact switch, far-end speech prompting loudspeaker; This Bluetooth signal receiving trap is in parallel with above-mentioned power supply.
The above-mentioned Control of Voltage case for isolating switch withstand voltage test, is characterized in, above-mentioned near-end acousto-optic circuit comprises: combined floodgate circuit, signal control circuit.
Above-mentioned combined floodgate circuit comprises: normally closed separating brake K switch B, and normal switching K switch F, the contactor K of series connection with it.
Above-mentioned contactor K also comprises contact switch K1, contact switch K2 and contact switch K3.Above-mentioned normal switching switch is in parallel with above-mentioned contact switch K1.
Above-mentioned signal control circuit comprises: near-end warning lamp, near-end speech prompting loudspeaker and Bluetooth signal transmitter; Above-mentioned near-end warning lamp, near-end speech prompting loudspeaker and Bluetooth signal transmitter are in parallel respectively, and connect with above-mentioned contact switch K1.
Above-mentioned near-end acousto-optic circuit carries out communication by above-mentioned Bluetooth signal transmitter, above-mentioned Bluetooth signal receiving trap and above-mentioned far-end acousto-optic circuit.
The above-mentioned Control of Voltage case for isolating switch withstand voltage test, be characterized in, above-mentioned voltage regulator control circuit comprises: pressurization step-down switch S, main winding L1, auxiliary winding L2, motor boost adjustable limiting normally closed contact KL1 and motor step-down adjustable limiting normally closed contact KL2.
The boost adjustable limiting normally closed contact KL1 series connection of above-mentioned main winding L1, motor forms branch road I; Above-mentioned auxiliary winding L2, motor step-down adjustable limiting normally closed contact KL2 series connection forms branch road II; Above-mentioned branch road I is in parallel with above-mentioned branch road II, and connects with above-mentioned pressurization step-down switch S, contact switch K3 respectively.
The utility model compared with prior art has the following advantages:
In actual tests, can make distance between field personnel relevant to other position, withstand voltage test position large or have in the situation of body of wall isolation, by far-end sound-light prompting function, the potential safety hazard reducing a staff, personal risk.The test voltage that simultaneously the utility model design can realize testing sample is progressively boosted, progressively step-down, makes that isolating switch withstand voltage test is more simple, easy operating completes, and has reduced test difficulty.
Accompanying drawing explanation
Fig. 1 is the principle schematic of a kind of Control of Voltage case for isolating switch withstand voltage test of the utility model.
Fig. 2 is the near-end acousto-optic circuit of a kind of Control of Voltage case for isolating switch withstand voltage test of the utility model, the schematic diagram of voltage regulator control circuit.
Fig. 3 is the principle schematic of the far-end acousto-optic circuit of a kind of Control of Voltage case for isolating switch withstand voltage test of the utility model.
Embodiment
Below in conjunction with accompanying drawing, by describing a preferably specific embodiment in detail, the utility model is further elaborated.
As shown in Figure 1, a kind of Control of Voltage case for isolating switch withstand voltage test.This Control of Voltage case comprises: regulating circuit 100, booster circuit 200, near-end acousto-optic circuit 300, far-end acousto-optic circuit 400 and voltage regulator control circuit 500.Regulating circuit 100 is connected with booster circuit 200, near-end acousto-optic circuit 300 respectively; This regulating circuit 100 is connected with voltage regulator control circuit 500 by the spacing motor 600 of outside pressure regulation; This near-end acousto-optic circuit 300 is connected with far-end acousto-optic circuit 400.
As shown in Figure 1, near-end acousto-optic circuit 300 is in parallel with the input end of regulating circuit 100.Regulating circuit 100 is provided with voltage regulation coil 110, and voltage regulator control circuit 500 is controlled the spacing motor 600 of outside pressure regulation, and the spacing motor 600 of this outside pressure regulation drives and regulate voltage regulation coil 110.
As shown in Figure 2, near-end acousto-optic circuit 300 comprises: combined floodgate circuit 310, signal control circuit 320.Combined floodgate circuit 310 comprises: normally closed separating brake K switch B 311, and normal switching K switch F 312, the contactor K313 of series connection with it.Contactor K313 also comprises contact switch K1 3131, contact switch K2 3132 and contact switch K3 3133.Normal switching switch 312 is in parallel with contact switch K13131.Signal control circuit 320 comprises: near-end warning lamp 321, near-end speech prompting loudspeaker 322 and Bluetooth signal transmitter 323.Near-end warning lamp 321, near-end speech prompting loudspeaker 322 and Bluetooth signal transmitter 323 are in parallel respectively, and connect with contact switch K13131.
Far-end acousto-optic circuit 400 comprises: Bluetooth signal receiving trap 410, far-end speech prompting loudspeaker 420, bluetooth receiving trap contact switch 430, far-end warning lamp 440 and power supply 450.Far-end speech prompting loudspeaker 420 are in parallel with far-end warning lamp 440, and connect with bluetooth receiving trap contact switch 430.Bluetooth signal receiving trap 410 points out loudspeaker 420 in parallel with bluetooth receiving trap contact switch 430, far-end speech; This Bluetooth signal receiving trap 410 is in parallel with power supply 450.Near-end acousto-optic circuit 300 carries out communication by Bluetooth signal transmitter 323, Bluetooth signal receiving trap 410 with far-end acousto-optic circuit 400.
Voltage regulator control circuit 500 comprises: pressurization step-down switch S 501, main winding L1 502, auxiliary winding L2 503, motor boost adjustable limiting normally closed contact KL1 504 and motor step-down adjustable limiting normally closed contact KL2 505.Adjustable limiting normally closed contact KL1 504 series connection of boosting of main winding L1 502, motor forms branch road I 510; Auxiliary winding L2 503, motor step-down adjustable limiting normally closed contact KL2 505 series connection form branch road II 520; Branch road I 510 is in parallel with branch road II 520, and is connected with pressurization step-down switch S 501, contact switch K3 3133.Pressurization step-down switch S 501 is divided into three gears, be respectively boost, stop, step-down.
The specific works principle of a kind of Control of Voltage case for isolating switch withstand voltage test of the utility model is as follows: as shown in Figure 1 and Figure 2, after the input end incoming transport voltage of regulating circuit 100, normal switching K switch F 312 closures in combined floodgate circuit 310, contactor K313 obtains electric, makes contact switch K1 3131, contact switch K2 3132 and contact switch K3 3133 closures; Near-end warning lamp 321, near-end speech prompting loudspeaker 322 and Bluetooth signal transmitter 323 are started working simultaneously, can realize sound and light alarm at test operation end, the input end of regulating circuit 100 accessed to 220V AC information simultaneously and be sent to far-end acousto-optic circuit 400 by Bluetooth signal transmitter 323.
The input end that the Bluetooth signal receiving trap 410 of far-end acousto-optic circuit 400 receives regulating circuit 100 by Bluetooth signal transmitter 323 has accessed after 220V AC information, closed bluetooth receiving trap contact switch 430, starts working far-end speech prompting loudspeaker 420, far-end warning lamp 440.Can point out far-end operating personnel, within the scope of this electrical connection, carry out applied voltage test, can not enter, thereby guarantee field work safe.
Contact switch K3 3133 closures in voltage regulator control circuit 500, when pressurization step-down switch S 501 is adjusted to while boosting gear, main winding L1 502 controls spacing motor 600 forwards of outside pressure regulation, drive and regulate the voltage regulation coil 110 in regulating circuit, booster circuit 200 can be realized at the uniform velocity and boost, at the output terminal generation high-tension electricity of booster circuit 200.
In the present embodiment, 220V AC supply voltage is the input voltage of the input end of regulating circuit 100, by this Control of Voltage case, regulate, make the input end of 0-200V alternating voltage input value booster circuit 200, different according to the turn ratio of the transformer 210 in booster circuit 200, can be so that the trial voltage of the output terminal of booster circuit 200 output be 0-50kV.
When the high-tension electricity of the output terminal output of booster circuit reaches trial voltage, the spacing action of the spacing motor 600 of outside pressure regulation, opens the motor adjustable limiting normally closed contact KL1 504 that boosts, and makes branch road I 510 dead electricity, and trial voltage no longer raises.
In the present embodiment, after the high-tension electricity of the output terminal of booster circuit reaches trial voltage, need to keep 1 minute withstand voltage.
Pressurization step-down switch S 501 is adjusted to step-down gear, auxiliary winding L2 503 controls spacing motor 600 reversions of outside pressure regulation, drive and regulate the voltage regulation coil 110 in regulating circuit, booster circuit 200 can be realized at the uniform velocity will press, at the output end voltage of booster circuit 200, be down to after 0V, motor step-down adjustable limiting normally closed contact KL2 505 opens, voltage regulator control circuit 500 dead electricity, finally pressurization step-down switch S 501 is adjusted to and stops gear, normally closed separating brake K switch B 311 disconnects, and completes test.
Although content of the present utility model has been done detailed introduction by above preferred embodiment, will be appreciated that above-mentioned description should not be considered to restriction of the present utility model.Those skilled in the art, read after foregoing, for multiple modification of the present utility model with to substitute will be all apparent.Therefore, protection domain of the present utility model should be limited to the appended claims.
Claims (4)
1. for a Control of Voltage case for isolating switch withstand voltage test, this Control of Voltage case comprises: regulating circuit (100), booster circuit (200); It is characterized in that, this Control of Voltage case also comprises: near-end acousto-optic circuit (300), far-end acousto-optic circuit (400) and voltage regulator control circuit (500);
Described regulating circuit (100) is connected with described booster circuit (200), near-end acousto-optic circuit (300) respectively; This regulating circuit (100) is connected with described voltage regulator control circuit (500) by the spacing motor of outside pressure regulation (600); This near-end acousto-optic circuit (300) carries out communication with described far-end acousto-optic circuit (400) by bluetooth; This near-end acousto-optic circuit (300) is in parallel with the input end of described regulating circuit (100).
2. the Control of Voltage case for isolating switch withstand voltage test as claimed in claim 1, it is characterized in that, described far-end acousto-optic circuit (400) comprises: Bluetooth signal receiving trap (410), far-end speech prompting loudspeaker (420), bluetooth receiving trap contact switch (430), far-end warning lamp (440) and power supply (450); Described far-end speech prompting loudspeaker (420) are in parallel with described far-end warning lamp (440), and connect with described bluetooth receiving trap contact switch (430); Described Bluetooth signal receiving trap (410) points out loudspeaker (420) in parallel with described bluetooth receiving trap contact switch (430), far-end speech; This Bluetooth signal receiving trap (410) is in parallel with described power supply (450).
3. the Control of Voltage case for isolating switch withstand voltage test as claimed in claim 2, is characterized in that, described near-end acousto-optic circuit (300) comprises: combined floodgate circuit (310), signal control circuit (320);
Normally closed separating brake K switch B(311), and the normal switching K switch F(312 of series connection with it described combined floodgate circuit (310) comprises :), contactor K (313);
Described contactor K (313) also comprises contact switch K1(3131), contact switch K2(3132) and contact switch K3(3133);
Described normal switching switch (312) and described contact switch K1(3131) in parallel;
Described signal control circuit (320) comprises: near-end warning lamp (321), near-end speech prompting loudspeaker (322) and Bluetooth signal transmitter (323); Described near-end warning lamp (321), near-end speech prompting loudspeaker (322) and Bluetooth signal transmitter (323) are in parallel respectively, and with described contact switch K1(3131) connect;
Described near-end acousto-optic circuit (300) carries out communication by described Bluetooth signal transmitter (323), described Bluetooth signal receiving trap (410) with described far-end acousto-optic circuit (400).
4. the Control of Voltage case for isolating switch withstand voltage test as claimed in claim 3, it is characterized in that, described voltage regulator control circuit (500) comprises: pressurization step-down switch S(501), main winding L1(502), auxiliary winding L2(503), the motor adjustable limiting normally closed contact KL1(504 that boosts) and motor step-down adjustable limiting normally closed contact KL2(505);
Described main winding L1(502), the motor adjustable limiting normally closed contact KL1(504 that boosts) series connection forms branch road I(510); Described auxiliary winding L2(503), motor step-down adjustable limiting normally closed contact KL2(505) series connection forms branch road II(520); Described branch road I(510) with described branch road II(520) in parallel, and respectively with described pressurization step-down switch S(501), contact switch K3(3133) connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420151089.7U CN203812124U (en) | 2014-03-31 | 2014-03-31 | Voltage control box for withstand voltage test of circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420151089.7U CN203812124U (en) | 2014-03-31 | 2014-03-31 | Voltage control box for withstand voltage test of circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203812124U true CN203812124U (en) | 2014-09-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420151089.7U Withdrawn - After Issue CN203812124U (en) | 2014-03-31 | 2014-03-31 | Voltage control box for withstand voltage test of circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203812124U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103885516A (en) * | 2014-03-31 | 2014-06-25 | 国网上海市电力公司 | Voltage control box used for breaker puncture test |
-
2014
- 2014-03-31 CN CN201420151089.7U patent/CN203812124U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103885516A (en) * | 2014-03-31 | 2014-06-25 | 国网上海市电力公司 | Voltage control box used for breaker puncture test |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140903 Effective date of abandoning: 20160106 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |