CN202102079U - Extra-high voltage direct current-alternating current testing equipment - Google Patents
Extra-high voltage direct current-alternating current testing equipment Download PDFInfo
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- CN202102079U CN202102079U CN201120182635XU CN201120182635U CN202102079U CN 202102079 U CN202102079 U CN 202102079U CN 201120182635X U CN201120182635X U CN 201120182635XU CN 201120182635 U CN201120182635 U CN 201120182635U CN 202102079 U CN202102079 U CN 202102079U
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- testing equipment
- high voltage
- direct current
- alternating current
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Abstract
The utility model relates to extra-high voltage direct current-alternating current testing equipment. The extra-high voltage direct current-alternating current testing equipment comprises a variable transformer; the variable transformer is connected with a multistage high-voltage transformer, a wire stream resistor, an object to be detected and an ampere meter; the object to be detected and the ampere meter are connected with a resistor R1 and a resistor R2 in parallel, wherein the resistor R1 is connected with the resistor R2 in series; the resistor R1 and the resistor R2 are connected with a capacitor in parallel; and the multistage high-voltage transformer is connected with an insulating gasket except the first stage. The extra-high voltage direct current-alternating current testing equipment has the advantages of simple structure, stable performance and low price, and namely, high cost performance.
Description
One, technical field:
The utility model relates to the dual-purpose testing equipment of a kind of extra-high voltage alternating current-direct current.
Two, background technology:
China's current power transmission voltage is up to 500KV, 750 KV, 1000KV; The Datong of having built up recently is to more than the 600 kilometer 1000KV ac transmission circuit in Wuhan, Hubei; Also plan in a few years from now on, to build four to five 1000KV transmission of electricity circuit,, all will drop into preceding check like transformer, isolating switch and mutual inductor etc. to the transmission facility of UHV (ultra-high voltage) and extra-high voltage; The preventative withstand voltage test of security maintenance after putting into operation; That is to say that trial voltage is also higher than 1000KV, the development of UHV (ultra-high voltage) and extra-high voltage testing equipment so just becomes the especially big problem of electric system.
Three, utility model content:
The utility model provides a kind of extra-high voltage alternating current-direct current dual-purpose testing equipment in order to solve the weak point in the above-mentioned background technology, and its performance simple in structure is stable.
For realizing above-mentioned purpose; The technical scheme that the utility model adopts is: the dual-purpose testing equipment of extra-high voltage alternating current-direct current; Comprise adjustable transformer, it is characterized in that: be connected with multistage high-tension transformer, linear flow water resistance, reometer on the described adjustable transformer, be parallel with the resistance R 1 and resistance R 2 of series connection on the described reometer; Be parallel with capacitor on resistance R 1 and the resistance R 2, remove the first order on the described multistage high-tension transformer and be externally connected with insulating cell.
Described multistage high-tension transformer has three grades at least.
Connect high-voltage rectifier on the described linear flow water resistance.
Be parallel with voltage table on the described resistance R 2.
Compared with prior art, the advantage and the effect that the utlity model has are following: simple in structure, stable performance, cheap be that cost performance is high.
Four, description of drawings:
Fig. 1 is the structural representation of the utility model.
Five, embodiment:
Referring to Fig. 1: the dual-purpose testing equipment of the utility model extra-high voltage alternating current-direct current; Comprise adjustable transformer 1; Be connected with multistage high-tension transformer 2, linear flow water resistance 4, measured object 9 and reometer 5 on its described adjustable transformer 1, be parallel with the resistance R 1 and resistance R 2 of series connection on described measured object 9 and the reometer 5, be parallel with capacitor 6 on resistance R 1 and the resistance R 2; Described multistage high-tension transformer 2 has three grades at least; Except that the first order, be connected with insulating cell 3 on other what, connect high-voltage rectifier 7 on the described linear flow water resistance 4, be parallel with voltage table 8 on the described resistance R 2.
The multistage high-tension transformer first order is pressure regulation and boosts, adjustable transformer input power frequency 220V
AC, input 0～220V
ACChange, thereby regulate whole output high pressure, UHV (ultra-high voltage), extra-high voltage variation, what capacity needs after the capacity of adjustable transformer will satisfy.
Every grade with high pressure output with the low pressure winding that is connected, still be 220V
AC, the input that subordinate's high-tension transformer is given in its power supply, an end of subordinate's input, with its high pressure so-called " " end is connected.
Insulation raises gradually to the earth behind the second level, is 100KV as if every step voltage, then second level insulation against ground 100KV; The third level is 200KV; By that analogy, therefore, except that the first order; Later on what all will be the high-tension transformer bed hedgehopping, make its bottom half be placed in insulation against ground by on the insulation porcelain knob or insulator that other material constitutes of requirement voltage.
If the output direct current is wanted adjunction high voltage silicon rectifier stack peace ripple capacitor.
High-voltage output end and by between the side thing will insert water under high pressure resistance, and the electric current that restriction is flow through transformer during by electric breakdown when test product is in allowed band.
High-precision high voltage resistor partial pressure type is adopted in the test of extreme high voltage, introduces measurement instrument to low voltage.
Claims (4)
1. the dual-purpose testing equipment of extra-high voltage alternating current-direct current; Comprise adjustable transformer (1); It is characterized in that: be connected with multistage high-tension transformer (2), resistance (4) and reometer (5) on the described adjustable transformer (1); Be parallel with the resistance R 1 and resistance R 2 of series connection on the described reometer (5), be parallel with capacitor (6) on resistance R 1 and the resistance R 2, described multistage high-tension transformer (2) upward removes the first order and is externally connected with insulating cell (3).
2. the dual-purpose testing equipment of extra-high voltage alternating current-direct current according to claim 1 is characterized in that: described multistage high-tension transformer (2) has three grades at least.
3. the dual-purpose testing equipment of extra-high voltage alternating current-direct current according to claim 2 is characterized in that: described resistance (4) is gone up and is connected high-voltage rectifier (7).
4. the dual-purpose testing equipment of extra-high voltage alternating current-direct current according to claim 3 is characterized in that: be parallel with voltage table (8) on the described resistance R 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120182635XU CN202102079U (en) | 2011-06-01 | 2011-06-01 | Extra-high voltage direct current-alternating current testing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120182635XU CN202102079U (en) | 2011-06-01 | 2011-06-01 | Extra-high voltage direct current-alternating current testing equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202102079U true CN202102079U (en) | 2012-01-04 |
Family
ID=45388084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120182635XU Expired - Fee Related CN202102079U (en) | 2011-06-01 | 2011-06-01 | Extra-high voltage direct current-alternating current testing equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202102079U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109655645A (en) * | 2019-01-24 | 2019-04-19 | 山西晋缘电力化学清洗中心有限公司 | The pilot system of the dual-purpose high voltage power supply of AC and DC |
| CN115616257A (en) * | 2022-12-05 | 2023-01-17 | 常州同惠电子股份有限公司 | Alternating current and direct current test switching device and method for ultra-high voltage |
-
2011
- 2011-06-01 CN CN201120182635XU patent/CN202102079U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109655645A (en) * | 2019-01-24 | 2019-04-19 | 山西晋缘电力化学清洗中心有限公司 | The pilot system of the dual-purpose high voltage power supply of AC and DC |
| CN115616257A (en) * | 2022-12-05 | 2023-01-17 | 常州同惠电子股份有限公司 | Alternating current and direct current test switching device and method for ultra-high voltage |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120104 Termination date: 20140601 |