CN202522641U - Efficiency testing device for low voltage generator changed from high voltage generator of rural hydropower station - Google Patents
Efficiency testing device for low voltage generator changed from high voltage generator of rural hydropower station Download PDFInfo
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- CN202522641U CN202522641U CN2012201045881U CN201220104588U CN202522641U CN 202522641 U CN202522641 U CN 202522641U CN 2012201045881 U CN2012201045881 U CN 2012201045881U CN 201220104588 U CN201220104588 U CN 201220104588U CN 202522641 U CN202522641 U CN 202522641U
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- efficiency
- voltage generator
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Abstract
The utility model relates to an efficiency testing device for an updated generator of a rural hydropower station and discloses the efficiency testing device for a low voltage generator changed from a high voltage generator of the rural hydropower station. The efficiency testing device comprises an insulation voltage-resistant tester, a magnetic tester, a temperature rising tester, a generator efficiency tester, a generator electrical reactance tester and a coil tester, wherein the insulation voltage-resistant tester, the magnetic tester, the temperature rising tester, the generator efficiency tester, the generator electrical reactance tester and the coil tester are successively connected through lead. The efficiency testing device for the low voltage generator changed from the high voltage generator of the rural hydropower station has advantages of low cost, good compatibility, simplified equipment, high testing efficiency and good safety.
Description
Technical field
The utility model relates to the rural hydropower station back generator efficiency testing equipment that renovates, and has related in particular to a kind of rural hydropower station high pressure and has changed the low voltage generator efficiency test device.
Background technology
China renovates to old power station, rural area at present; Original single-machine capacity can change high pressure into low pressure when undergoing technological transformation in the old power station of 500-1000kW; Cancel original electric primary equipment, comprise primary equipments such as generator high-tension switch cabinet, high voltage potential transformer and lightning arrester cabinet, high-voltage terminal cabinet, high-voltage metering cubicle, high voltage power cable; Cancel original electrical secondary equipment, comprise unit local control unit LCU screen, Microcomputer Protection screen, straight-flow system.The generator single-machine capacity is the low pressure outlet at the old power plant retrofit of 500-1000kW; Guaranteeing under the situation of security performance; Electrical equipment is greatly simplified, as long as electric primary equipment is set up (except generator, the main-transformer): primary equipments such as generator low voltage control screen, high-voltage metering cubicle, lv power cables; Also greatly simplify when electrical secondary equipment adopts computer monitoring, relevant device can be contained on the unit control flow.Thus saving the cost of investment, but high pressure to low pressure after the current increases will affect the generator insulation safety, the need for a series of high-pressure and low-pressure performance test changed, but there is no national or industry standards can refer to, nor The test device ready, hydropower stations therefore invented a high voltage generator efficiency test device change is necessary.
Summary of the invention
The purpose of the utility model provides a kind of with low cost, and compatible performance is good, has simplified equipment, and testing efficiency is high, and the rural hydropower station high pressure that security is good changes the low voltage generator efficiency test device.
In order to solve the problems of the technologies described above, the utility model is able to solve through following technical proposals:
The rural hydropower station high pressure changes the low voltage generator efficiency test device; This device comprises dielectric voltage withstand tester, magnetic force tester, temperature rise test appearance, generator efficiency tester, generator reactance tester and coil measuring instrument, and dielectric voltage withstand tester, magnetic force tester, temperature rise test appearance, generator efficiency tester, generator reactance tester, coil measuring instrument connect by lead successively.Dielectric voltage withstand tester, main measuring are ordered the withstand voltage degree of insulating sublayer material for a trial and whether the thickness of insulating paper reaches requirement.The magnetic force tester mainly refers to draw close and close variation relation and air gap flux density and the close relation of stator magnet of stator magnet of rotor magnetic through after the stator step-down, and calculating through electromagnetism then provides technical parameter.The temperature rise test appearance mainly is stator and the rotor temperature rise test that is used under the overload operating mode.The efficiency of generator tester is used for measuring synchronously the output power of prime mover and the output power of generator.Generator reactance tester is used for measuring synchronously the synchronous reactance value of generator after the step-down.The coil measuring instrument is used for test of stator coil curing process and vacuum pressure impregnation process test.
The parameter of a last tester can pass to next tester and as the test condition of next tester.Can be to the exciting current of improved low voltage generator, voltage, efficiency of generator, stator load, allow parameter such as temperature rise to test, test event comprises stator insulation voltage-withstand test, stator and the close test of rotor magnetic, stator and rotor temperature rise test, efficiency of generator test, the test of generator synchronous reactance and stator coil process test.
As preferably, described coil measuring instrument is a pulsed coil measurement appearance.
The utility model has significant technique effect owing to adopted above technical scheme:
The utility model can carry out efficiency ratio to improved generator and original generator through efficiency test, for subsequent technique provides reference, can measure the synchronous reactance value of generator after the step-down synchronously; And stator coil curing process and two kinds of new technologies of vacuum pressure impregnation tested; The said equipment is with low cost, and compatible performance is good, has simplified the equipment connecting process; Improve testing efficiency, had very high practicality.
Description of drawings
Fig. 1 is that the equipment of the utility model connects synoptic diagram.
Embodiment
The utility model is described in further detail with embodiment below in conjunction with accompanying drawing 1:
Embodiment 1
The rural hydropower station high pressure changes the low voltage generator efficiency test device; As shown in Figure 1; This device comprises dielectric voltage withstand tester 1, magnetic force tester 2, temperature rise test appearance 3, generator efficiency tester 4, generator reactance tester 5 and pulsed coil measurement appearance 6, and dielectric voltage withstand tester 1, magnetic force tester 2, temperature rise test appearance 3, generator efficiency tester 4, generator reactance tester 5, pulsed coil measurement appearance 6 connect by lead successively.
In a word, the above is merely the preferred embodiment of the utility model, and all equalizations of being done according to the utility model claim change and modify, and all should belong to the covering scope of the utility model patent.
Claims (2)
1. the rural hydropower station high pressure changes the low voltage generator efficiency test device; It is characterized in that: this device comprises dielectric voltage withstand tester (1), magnetic force tester (2), temperature rise test appearance (3), generator efficiency tester (4), generator reactance tester (5) and coil measuring instrument (6), and dielectric voltage withstand tester (1), magnetic force tester (2), temperature rise test appearance (3), generator efficiency tester (4), generator reactance tester (5), coil measuring instrument (6) connect by lead successively.
2. rural hydropower station according to claim 1 high pressure changes the low voltage generator efficiency test device, it is characterized in that: described coil measuring instrument (6) is a pulsed coil measurement appearance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201045881U CN202522641U (en) | 2012-03-20 | 2012-03-20 | Efficiency testing device for low voltage generator changed from high voltage generator of rural hydropower station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201045881U CN202522641U (en) | 2012-03-20 | 2012-03-20 | Efficiency testing device for low voltage generator changed from high voltage generator of rural hydropower station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202522641U true CN202522641U (en) | 2012-11-07 |
Family
ID=47105584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201045881U Expired - Fee Related CN202522641U (en) | 2012-03-20 | 2012-03-20 | Efficiency testing device for low voltage generator changed from high voltage generator of rural hydropower station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202522641U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105203144A (en) * | 2015-11-09 | 2015-12-30 | 江健良 | Multi-functional high-voltage generating station detection device |
-
2012
- 2012-03-20 CN CN2012201045881U patent/CN202522641U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105203144A (en) * | 2015-11-09 | 2015-12-30 | 江健良 | Multi-functional high-voltage generating station detection device |
| CN105203144B (en) * | 2015-11-09 | 2016-06-08 | 国网山东省电力公司金乡县供电公司 | Multifunctional high pressure power station detecting device |
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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: 20121107 Termination date: 20130320 |