CN103904924A - High-capacity anti-interference high-voltage switch test power source - Google Patents
High-capacity anti-interference high-voltage switch test power source Download PDFInfo
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- CN103904924A CN103904924A CN201410079510.2A CN201410079510A CN103904924A CN 103904924 A CN103904924 A CN 103904924A CN 201410079510 A CN201410079510 A CN 201410079510A CN 103904924 A CN103904924 A CN 103904924A
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Abstract
The invention relates to a high-capacity anti-interference high-voltage switch test power source. The high-capacity anti-interference high-voltage switch test power source is characterized by comprising a power source input loop connected with an external power source, the output end of the power source input loop is connected with a voltage gear selection loop, the output end of the voltage gear selection loop is connected with the coil input end of a voltage adjuster T of a voltage adjusting and isolating loop, the output of an isolation transformer T0 of the voltage adjusting and isolating loop is connected with the input end of a high-capacity alternating current output loop, the output of the high-capacity alternating current output loop is divided into two paths via a switch K4, one path is high-capacity alternating current output, the other path is connected with a direct current output loop, and direct current is output through the direct current output loop. By the high-capacity anti-interference high-voltage switch test power source, high-voltage electromagnetic radiation interference on site can be eliminated, large current can be output, and the power source can be used in cooperation with an ordinary mechanical characteristic tester.
Description
Technical field
The invention belongs to Hi-pot test mesohigh power technique fields, relate in particular to a kind of large anti-interference high-voltage switch gear experiment power supply of capacity.
Background technology
Integrated along with electronic component, switch testing with mechanic character tester towards interface, intellectuality, multifunction future development, still in use, tester is subject to test site high voltage electromagnetic interference, cause triggering signal and interference signal to be obscured, impact test; In addition, it is larger that permanent magnet mechanism triggers required transient current, generally reaches 20A, and this mechanism cannot be directly triggered in the triggering loop of common mechanic character tester configuration.
This patent relates to a kind of large anti-interference high-voltage switch gear experiment power supply of capacity, can meet this two requirements, and can be used in conjunction with general mechanic character tester.
Summary of the invention
The object of the invention is for the deficiencies in the prior art, and propose a kind of large anti-interference high-voltage switch gear experiment power supply of capacity, in order to meet large electric current and jamproof requirement.
The present invention solves its technical problem and takes following technical scheme to realize:
A kind of large anti-interference high-voltage switch gear experiment power supply of capacity, it is characterized in that: comprise the power supply input circuit that connects external power source, the output of power supply input circuit selects loop to be connected with voltage gear, voltage gear selects loop output to be connected with the coil input end of the voltage regulator T of voltage-regulation and isolated loop, the isolating transformer T0 output of voltage-regulation and isolated loop is connected with the input that large capacity exchanges output loop, the output that large capacity exchanges output loop is divided into two-way by K switch 4, one tunnel is that large capacity exchanges output, another road is connected with direct current output loop, realized the output of direct current by direct current output loop.
And described power supply input circuit comprises by input and plays insurance FU, the mains switch K0 and the power supply indicator L that are connected on successively in circuit.
And, described voltage gear is selected loop to comprise and is connected in parallel on the bleeder circuit being made up of capacitor C 1 series capacitance C2 between power positive end and ground, the connecting terminal of K switch 1 is divided into two grades, export for forming 110v between the output node between capacitor C 1 and capacitor C 2 and power positive end for one grade, another grade is the 220v output of power supply positive and negative terminal.
And the coil output of the voltage regulator T of described voltage-regulation and isolated loop is connected with the input of isolating transformer T0, and at the output of an isolating transformer T0 voltmeter V1 in parallel.
And described large capacity exchanges output loop and comprises that the output plus terminal of self-isolation transformer T0 plays K switch 2, K switch 3 and the K switch 4 of serial connection successively, shunt capacitance C3 between the node being connected with K switch 3 in K switch 2 and the output negative terminal of isolating transformer T0.
And described direct current output loop is the bridge rectifier being made up of diode D1-D4, bridge rectifier output is DC output end after resistance R, and is exporting shunt voltage Table V 2 between two ends.
Advantage of the present invention and good effect are
1, this Switching Power Supply input power, for the conventional AC220V that exchanges, is realized equipment self-protection by fuse.
2, realize the conversion of 110,220 two gears by stepping setting, be applicable to the switchgear of two kinds of operating powers.
3, can to realize output voltage range be 0～220V to voltage regulator; Isolation becomes the interference that has completely cut off the high field intensities such as transformer station; Voltmeter V1 shows output AC voltage actual numerical value.
4, large capacity exchange output loop can output AC 220V, transient current 20A, realizes the large current work requirement of permanent-magnet operating mechanism, can meet the test request of non-large electric current simultaneously.
5, DC loop can output dc voltage (0～220V).
Brief description of the drawings
The anti-interference high-voltage switch gear experiment power supply of the large capacity of Fig. 1 circuit theory diagrams.
Embodiment
Below in conjunction with accompanying drawing, the invention process is further described, following examples are descriptive, are not determinate, can not limit protection scope of the present invention with this.
A kind of large anti-interference high-voltage switch gear experiment power supply of capacity, as shown in Figure 1, comprise the power supply input circuit that connects external communication 220v power supply, the output of power supply input circuit selects loop to be connected with voltage gear, input voltage is divided into two kinds of 220v and 110v, voltage gear selects loop output to be connected with the coil input end of the voltage regulator T of voltage-regulation and isolated loop, the isolating transformer T0 output of voltage-regulation and isolated loop is connected with the input that large capacity exchanges output loop, the output that large capacity exchanges output loop is divided into two-way by K switch 4, one tunnel is that large capacity exchanges output, another road is connected with direct current output loop, realized the output of direct current by direct current output loop.
In specific embodiment of the invention, described power supply input circuit comprises by input and plays insurance FU, the mains switch K0 and the power supply indicator L that are connected on successively in circuit.
In specific embodiment of the invention, described voltage gear is selected loop to comprise and is connected in parallel on the bleeder circuit being made up of capacitor C 1 series capacitance C2 between power positive end and ground, the connecting terminal of K switch 1 is divided into two grades, export for forming 110v between the output node between capacitor C 1 and capacitor C 2 and power positive end for one grade, another grade is the 220v output of power supply positive and negative terminal.
In specific embodiment of the invention, the coil output of the voltage regulator T of described voltage-regulation and isolated loop is connected with the input of isolating transformer T0, and at the output of an isolating transformer T0 voltmeter V1 in parallel.
In specific embodiment of the invention, described large capacity exchanges output loop and comprises that the output plus terminal of self-isolation transformer T0 plays K switch 2, K switch 3 and the K switch 4 of serial connection successively, shunt capacitance C3 between the node being connected with K switch 3 in K switch 2 and the output negative terminal of isolating transformer T0, forms and exchanges output between the contact gear 2 of K switch 4 and the output negative terminal of isolating transformer T0; When non-large current requirements, K2 closure, K switch 4 is selected contact gear 2, presses K3, output AC voltage 0～220V; When large current requirements, after the energising of preposition loop, disconnect K2, press K3, output AC voltage 0～220V and large electric current.
In specific embodiment of the invention, described direct current output loop is the bridge rectifier being made up of diode D1-D4, and bridge rectifier output is DC output end after resistance R, and is exporting shunt voltage Table V 2 between two ends.
Claims (6)
1. the anti-interference high-voltage switch gear experiment power supply of large capacity, it is characterized in that: comprise the power supply input circuit that connects external power source, the output of power supply input circuit selects loop to be connected with voltage gear, voltage gear selects loop output to be connected with the coil input end of the voltage regulator T of voltage-regulation and isolated loop, the isolating transformer T0 output of voltage-regulation and isolated loop is connected with the input that large capacity exchanges output loop, the output that large capacity exchanges output loop is divided into two-way by K switch 4, one tunnel is that large capacity exchanges output, another road is connected with direct current output loop, realized the output of direct current by direct current output loop.
2. the anti-interference high-voltage switch gear experiment power supply of large capacity according to claim 1, is characterized in that: described power supply input circuit comprises by input and plays insurance FU, the mains switch K0 and the power supply indicator L that are connected on successively in circuit.
3. the anti-interference high-voltage switch gear experiment power supply of large capacity according to claim 1, it is characterized in that: described voltage gear is selected loop to comprise and is connected in parallel on the bleeder circuit being made up of capacitor C 1 series capacitance C2 between power positive end and ground, the connecting terminal of K switch 1 is divided into two grades, export for forming 110v between the output node between capacitor C 1 and capacitor C 2 and power positive end for one grade, another grade is the 220v output of power supply positive and negative terminal.
4. the anti-interference high-voltage switch gear experiment power supply of large capacity according to claim 1, it is characterized in that: the coil output of the voltage regulator T of described voltage-regulation and isolated loop is connected with the input of isolating transformer T0, and at the output of an isolating transformer T0 voltmeter V1 in parallel.
5. the anti-interference high-voltage switch gear experiment power supply of large capacity according to claim 1, it is characterized in that: described large capacity exchanges output loop and comprises that the output plus terminal of self-isolation transformer T0 plays K switch 2, K switch 3 and the K switch 4 of serial connection successively, shunt capacitance C3 between the node being connected with K switch 3 in K switch 2 and the output negative terminal of isolating transformer T0.
6. the anti-interference high-voltage switch gear experiment power supply of large capacity according to claim 1, it is characterized in that: described direct current output loop is the bridge rectifier being made up of diode D1-D4, bridge rectifier output is DC output end after resistance R, and is exporting shunt voltage Table V 2 between two ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410079510.2A CN103904924A (en) | 2014-03-06 | 2014-03-06 | High-capacity anti-interference high-voltage switch test power source |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410079510.2A CN103904924A (en) | 2014-03-06 | 2014-03-06 | High-capacity anti-interference high-voltage switch test power source |
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| CN103904924A true CN103904924A (en) | 2014-07-02 |
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| CN201410079510.2A Pending CN103904924A (en) | 2014-03-06 | 2014-03-06 | High-capacity anti-interference high-voltage switch test power source |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106370895A (en) * | 2016-09-14 | 2017-02-01 | 国家电网公司 | High-voltage test power source control device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200947577Y (en) * | 2006-07-07 | 2007-09-12 | 李文舟 | Adjustable constant current voltage-stabilized power supply |
| CN201917622U (en) * | 2011-01-06 | 2011-08-03 | 南京信息工程大学 | Decoupling network device of surge protection device |
| CN103457486A (en) * | 2013-09-09 | 2013-12-18 | 青岛纳川电气科技有限公司 | Voltage-regulating current-regulating direct-current power supply with lightning-stroke-prevention and surging-prevention functions |
-
2014
- 2014-03-06 CN CN201410079510.2A patent/CN103904924A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200947577Y (en) * | 2006-07-07 | 2007-09-12 | 李文舟 | Adjustable constant current voltage-stabilized power supply |
| CN201917622U (en) * | 2011-01-06 | 2011-08-03 | 南京信息工程大学 | Decoupling network device of surge protection device |
| CN103457486A (en) * | 2013-09-09 | 2013-12-18 | 青岛纳川电气科技有限公司 | Voltage-regulating current-regulating direct-current power supply with lightning-stroke-prevention and surging-prevention functions |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106370895A (en) * | 2016-09-14 | 2017-02-01 | 国家电网公司 | High-voltage test power source control device |
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Address after: 300010 Tianjin city Hebei District Wujing Road No. 39 Applicant after: State Grid Corporation of China Applicant after: State Grid Tianjin Electric Power Company Address before: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Applicant before: State Grid Corporation of China Applicant before: State Grid Tianjin Electric Power Company |
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Application publication date: 20140702 |