CN202939230U - Portable high voltage current inductor transformation ratio measuring device - Google Patents
Portable high voltage current inductor transformation ratio measuring device Download PDFInfo
- Publication number
- CN202939230U CN202939230U CN 201220554998 CN201220554998U CN202939230U CN 202939230 U CN202939230 U CN 202939230U CN 201220554998 CN201220554998 CN 201220554998 CN 201220554998 U CN201220554998 U CN 201220554998U CN 202939230 U CN202939230 U CN 202939230U
- Authority
- CN
- China
- Prior art keywords
- transformer
- high voltage
- switch
- reometer
- resistor
- 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 - Fee Related
Links
- 230000009466 transformation Effects 0.000 title abstract 2
- 238000005259 measurement Methods 0.000 claims abstract description 13
- 238000004804 winding Methods 0.000 claims description 13
- 238000009434 installation Methods 0.000 claims description 5
- 238000010276 construction Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
Images
Abstract
The utility model discloses a portable high voltage current inductor transformation ratio measuring device. A signal output of the device is connected with an input end of a primary coil of a high voltage combination inductor to be measured, an output end of the primary coil is connected with a primary ammeter, a resistor R1 and a resistor R2 are connected in parallel, the other end of the ammeter is connected with the resistor R1 and the resistor R2 through a switch, the other end of the resistor R1 is connected with a series connection end of the resistor R2 and the switch and then connected with a secondary side of a power source transformer, a secondary ammeter of the device is respectively connected with two sets of secondary coils of the high voltage combination inductor to be measured through terminals, and measurement is carried out. The device has a reliable circuit and a light and convenient structure and is especially applicable to use in construction and overhaul field.
Description
Technical field
The utility model relates to a kind of electric power measuring device, relates in particular to a kind of high-tension current inductor no-load voltage ratio measurement mechanism.
Background technology
In electric system, rural power system widespread use 10kV ultra-high-tension power transmission line, high voltage combined transformer is used very general in the 10kV circuit, high voltage combined transformer has two groups of different electric current no-load voltage ratios, be easy in real work two kinds of electric current no-load voltage ratio tap false wirings, power supply enterprise's economic loss is given in the metering that makes the mistake; How not dismantling high voltage combined transformer at equipment installation, Overhaul site, identify quickly and easily, verify two groups of different electric current no-load voltage ratios of high voltage combined transformer, is to guarantee measurent wiring actual needs accurately.
The utility model is exactly the actual demand in conjunction with above-mentioned working site, custom-designed a kind of portable high-pressure current transformer ratio measurement mechanism for detection of checking high voltage combined transformer electric current no-load voltage ratio.
The utility model content
Order of the present utility model is to prevent the measurent wiring mistake, does not dismantle high voltage combined transformer after a kind of power failure is provided, and carries out the portable high-pressure current transformer ratio measurement mechanism of electric current winding no-load voltage ratio identification.
for reaching above-mentioned purpose, technical solution of the present utility model is: a kind of portable high-pressure current transformer ratio measurement mechanism, it is mainly by power transformer, reometer, shunt resistance, switch, fuse constitutes, the input of power transformer connects the 220V power supply through fuse, its output is connected to the AP1 end of tested high voltage combined transformer primary winding through lead-out terminal P1, the AP2 end of primary winding connects primary current Table A 1 through the P2 terminal, the other end of reometer A1 through K switch 1 with in parallel after resistance R 1, R2 joins, the other end of resistance R 1 is connected to the secondary output winding end of power transformer, resistance R 2 and the secondary output winding end that also is connected to power transformer after K switch 2 is connected, the two ends of reometer A2 join through one group of secondary coil of connection terminal AS1, AS2 and tested high voltage combined transformer.
The utility model device profile is rectangular parallelepiped, on its front panel, and parallel installation reometer A1, A2, reometer A2 side at right angle setting K switch 1, K2, in its back panel bottom, connection terminal and tubular fuse are installed, on casing top, carrying handle is installed.
Reliable due to the circuit of this device, structure is light, and is suitable especially in construction, use in Overhaul site.
Description of drawings
Fig. 1 portable high-pressure current transformer ratio measurement mechanism circuit diagram;
In the drawings, 1-power transformer, 2-fuse, 3-high voltage combined transformer;
Fig. 2 portable high-pressure current transformer ratio measurement mechanism profile schematic diagram;
Fig. 3 portable high-pressure current transformer ratio measurement mechanism schematic rear view.
Embodiment
Below in conjunction with accompanying drawing, this portable high-pressure current transformer ratio measurement mechanism is described in further detail:
as seen from Figure 1, portable high-pressure current transformer ratio measurement mechanism is mainly by power transformer, reometer, shunt resistance, switch, fuse constitutes, whole elements and the annex of device all are arranged in portable casing, the input of power transformer 1 is connected to the 220V power supply through fuse 2, be output as the safe power frequency supply of 12V, fuse can be selected glass tubular type, its output is connected to the AP1 end of tested high voltage combined transformer 3 primary windings through lead-out terminal P1, the AP2 end of primary winding connects primary current Table A 1 through the P2 terminal, the other end of reometer A1 through K switch 1 with in parallel after resistance R 1, R2 joins, resistance R 1, it is the measuring resistance of 4.8 ohm that R2 can select resistance, the other end of resistance R 1 is connected to the secondary output winding end of power transformer 1, resistance R 2 and the secondary output winding end that also is connected to power transformer 1 after K switch 2 is connected, first group of secondary coil through connection terminal AS1, AS2 and tested high voltage combined transformer of reometer A2 joins, when this device uses, switch on power, Closing Switch K1, calculate no-load voltage ratio after reading current Table A 1, A2 numerical value, Closing Switch K2 again, the double counting no-load voltage ratio is proofreaded.
By Fig. 2, Fig. 3 as seen, the device profile is rectangular parallelepiped, and size: 303 * 225 * 135mm can select the plain metal light sheet to make, on its front panel, parallel installation reometer A1, A2, reometer A2 side at right angle setting K switch 1, K2 are on its back panel, connection terminal, tubular fuse are installed, in order to be convenient for carrying, on casing top, carrying handle is housed, the mounting arrangements size of all parts is take the best as criterion.
The whole selection standard spares of undeclared components and parts in this device take best fit as standard, are not elaborated at this.
Claims (2)
1. portable high-pressure current transformer ratio measurement mechanism, mainly by power transformer, reometer, shunt resistance,
switch, fuse constitutes, it is characterized in that: the input of described installation's power source transformer (1) connects the 220V power supply through fuse (2), its output is connected to the AP1 end of tested high voltage combined transformer (3) primary winding through lead-out terminal P1, the AP2 end of primary winding connects primary current Table A 1 through the P2 terminal, the other end of reometer A1 through K switch 1 with in parallel after resistance R 1, R2 joins, the other end of resistance R 1 is connected to the secondary output winding end of power transformer (1), resistance R 2 and the secondary output winding end that also is connected to power transformer (1) after K switch 2 is connected, the two ends of reometer A2 join through one group of secondary coil of connection terminal AS1, AS2 and tested high voltage combined transformer.
2. portable high-pressure current transformer ratio measurement mechanism according to claim 1, it is characterized in that: described device profile is rectangular parallelepiped, on its front panel, parallel installation reometer A1, A2, reometer A2 side at right angle setting K switch 1, K2, in its back panel bottom, connection terminal and tubular fuse are installed, on casing top, carrying handle is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220554998 CN202939230U (en) | 2012-10-27 | 2012-10-27 | Portable high voltage current inductor transformation ratio measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220554998 CN202939230U (en) | 2012-10-27 | 2012-10-27 | Portable high voltage current inductor transformation ratio measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202939230U true CN202939230U (en) | 2013-05-15 |
Family
ID=48323461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220554998 Expired - Fee Related CN202939230U (en) | 2012-10-27 | 2012-10-27 | Portable high voltage current inductor transformation ratio measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202939230U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102955079A (en) * | 2012-10-27 | 2013-03-06 | 保定供电公司 | Portable-type high-voltage current transformer transformation-ratio measurement device |
| CN110007262A (en) * | 2019-04-23 | 2019-07-12 | 珠海市华优电气技术有限公司 | A kind of method, computer installation and computer readable storage medium detecting the practical no-load voltage ratio value of high-tension current inductor |
| CN113933558A (en) * | 2021-10-13 | 2022-01-14 | 江苏斯菲尔电气股份有限公司 | Instrument capable of automatically identifying specification of current transformer and setting transformation ratio |
-
2012
- 2012-10-27 CN CN 201220554998 patent/CN202939230U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102955079A (en) * | 2012-10-27 | 2013-03-06 | 保定供电公司 | Portable-type high-voltage current transformer transformation-ratio measurement device |
| CN110007262A (en) * | 2019-04-23 | 2019-07-12 | 珠海市华优电气技术有限公司 | A kind of method, computer installation and computer readable storage medium detecting the practical no-load voltage ratio value of high-tension current inductor |
| CN113933558A (en) * | 2021-10-13 | 2022-01-14 | 江苏斯菲尔电气股份有限公司 | Instrument capable of automatically identifying specification of current transformer and setting transformation ratio |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110850334B (en) | Nondestructive testing method and device for CT secondary circuit state | |
| CN102944700A (en) | Secondary wiring device for test of characteristics of a current transformer | |
| CN202939230U (en) | Portable high voltage current inductor transformation ratio measuring device | |
| CN203011948U (en) | Current transformer characteristic test secondary connection device | |
| CN105004963A (en) | Current and potential transformer polarity test device | |
| CN102955079A (en) | Portable-type high-voltage current transformer transformation-ratio measurement device | |
| CN102411135A (en) | Device and method for testing electrical fast transient/burst (EFT/B) immunity of electric energy meter | |
| CN105467239A (en) | Voltage transformer excitation characteristic test system | |
| CN202563077U (en) | Detector for electric energy metering apparatus | |
| CN103941216B (en) | Voltage transformer scene Automatic Check-out And Readiness Equipment | |
| CN203705524U (en) | Universal multifunctional integrated comprehensive test bench | |
| CN201532453U (en) | Tester of lightning arrester monitor | |
| CN103941051B (en) | Charged pluggable high voltage electric energy metering device and method | |
| CN205679721U (en) | The intelligence instrument of the automatic discrimination three-phase three-wire electric energy meter mode of connection | |
| CN203870240U (en) | Voltage transformer on-site detector | |
| CN209432939U (en) | A kind of high-power transformer second protection polarity test device | |
| CN204359883U (en) | A kind of transformer multifunctional tester | |
| CN204177954U (en) | A kind of 35kV global error of high voltage energy metering installation verification system | |
| CN204008911U (en) | A kind of coil apparatus proving installation | |
| CN206541018U (en) | A kind of multipoint grounding seeking instrument of voltage transformer | |
| CN202649459U (en) | Temporary load device for electric energy metering device field calibration | |
| CN204946702U (en) | A kind of Multichannel isolating voltage instrument transformer with compensation | |
| CN203519812U (en) | Current transformer on-site verifying unit | |
| CN201955466U (en) | Multifunctional electric apparatus parameter test instrument | |
| CN203858354U (en) | On-site automatic detector for voltage transformer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20131127 Address after: 100761 West Chang'an Avenue, Beijing, No. 86, No. Patentee after: State Grid Corporation of China Patentee after: State Grid Hebei Electric Power Company Patentee after: Baoding Power Supply Branch Company, State Grid Hebei Electric Power Company Address before: 071051 No. 138 sunny north street, new urban district, Hebei, Baoding Patentee before: Baoding Power Supply Company |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130515 Termination date: 20131027 |