CN205986568U - Power frequency generating set for transformer test - Google Patents
Power frequency generating set for transformer test Download PDFInfo
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- CN205986568U CN205986568U CN201620956052.0U CN201620956052U CN205986568U CN 205986568 U CN205986568 U CN 205986568U CN 201620956052 U CN201620956052 U CN 201620956052U CN 205986568 U CN205986568 U CN 205986568U
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- motor
- coil windings
- generator
- power frequency
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Abstract
The utility model relates to a power frequency generating set for transformer test pulls a synchronous generator by a synchronous motor, and synchronous motor's stator has two sets of windings of 10 utmost point coil windings and 12 utmost point coil windings, and synchronous generator is connected to the lead -out wire of two sets of coil windings, and synchronous generator connects the transformer, and 50Hz power frequency experiment promptly connects one set, and the experiment of 60Hz power frequency connects one set. The utility model discloses control is simply without converter or dc speed regulation, and unit despin, does not also need two not homopolar digital circuit motives to exchange, reduces vibration and noise, and the unit safety performance improves greatly, has reduced the whole cost of system.
Description
Technical field
This utility model is related to transformer test unit and in particular to a kind of transformer test industrial frequency generator
Group.
Background technology
China's electrical network ac frequency is 50Hz, and some national grid frequencies are 60Hz, so exporting to these countries
Transformer frequencies be 60Hz, transformator factory testing will do performance test, and the generating set of test is generally accomplished by can
50Hz is provided, is provided that 60Hz power supply again.Realize 60Hz function, need change electromotor unit in synchronous motor turn
Speed, current way is：1. motor speed 2. is changed using converter and two synchronous electricity of speed governing 3. are come using direct current generator
Motivation is exchanged（One, motor is 10 pole 600rpm, and one is 12 pole 500rpm）, but converter belongs to electronic device, DC generator
Need rectifier transformer and high-power silicon controlled rectifier, and pollute electrical network, both of which haves the shortcomings that poor reliability, not easy care；More
Change motor and be even more operation extremely inconvenience, the method done something against one's will.
Utility model content
For solving the above problems, a set of transformer test industrial frequency generator group of the new offer of basis,
Synchronous motor adopts double-speed motor, and when motor difference number of poles operating, electromotor sends the power supply of different frequency.
For realizing object above, employ the following technical solutions：Transformer test industrial frequency generator group, including synchronous electronic
Machine and synchronous generator, drag a synchronous generator by a synchronous motor, and synchronous motor is double-speed motor, synchronous electricity
The stator of motivation has 10 pole coil windings and 12 pole coil windings double windings, 10 pole coil windings and 12 pole coil windings respectively to have
Lead-out wire and two sets of lead-out wires connect synchronous generator, synchronous generator connection transformer respectively.Synchronous generator adopts 12
Pole, synchronous motor adopts 10/12 pole, and when synchronous motor is 10 pole operatings, synchronous generator sends 60Hz power supply, works as synchronization
Motor is 12 pole operatings, and synchronous generator sends 50Hz power supply.
This utility model beneficial effect：Control simply without converter or DC speed regulation, and generating unit speed reduces, and is also not required to
Two different pole count motor are exchanged, and reduce vibration and noise, unit safety performance greatly improves, and the system that reduces integrally is made
Valency.
Brief description
Fig. 1 is structure schematic diagram of the present utility model；
Fig. 2 is synchronous generator or（Dynamic）Machine stator wiring diagram；
Fig. 3 is stator of synchronous motor winding schematic diagram.
As shown in the figure：1st, synchronous motor；2nd, 10 pole coil windings；3rd, 12 pole coil windings；4th, synchronous generator；5th, become
Depressor.
Specific embodiment
Embodiment
Further illustrate below in conjunction with the accompanying drawings, as shown in figure 1, by a synchronous motor（1）Drag a synchronous generator
Machine（2）, synchronous motor（1）Stator have 10 pole coil windings（2）With 12 pole coil windings（3）Double winding, 10 polar curve circles
Winding（2）With 12 pole coil windings（3）Respectively there is lead-out wire and two sets of lead-out wires connect synchronous generator respectively（4）, synchronous
Motor（4）Connection transformer（5）.Synchronous generator（1）Using 12 poles, synchronous motor（1）Using 10/12 pole, when synchronous electricity
Motivation（1）Operate for 10 poles, synchronous generator（4）Send 60Hz power supply, work as synchronous motor（1）Operate for 12 poles, synchronous
Motor（4）Send 50Hz power supply.
Generator frequency f=motor speed（Generating unit speed）×p/60（P is power generator electrode logarithm）
It can be seen that：After electromotor number of poles is fixing, change motor or rotating speed it is possible to obtain the frequency wanted.
As shown in Figure 2；
The fixation of electromotor number of poles is 12 poles, number of pole-pairs p=6；When the operating of motor 12 pole, motor speed（Generating unit speed）
During for 500 revs/min：
Generator frequency：F=motor speed × p/60=500 × 6/60=50Hz；
The fixation of electromotor number of poles is 12 poles, number of pole-pairs p=6；When the operating of motor 10 pole, motor speed（Generating unit speed）
During for 600 revs/min：
Generator frequency：F=motor speed × p/60=600 × 6/60=60Hz；
So we pass through motor gear box, change rotary speed of generator group, are allowed to frequency shift.Synchronous motor internal two
Set winding, lead-out wire is two sets, and 50Hz industrial frequency experiment connects a set of, and 60Hz industrial frequency experiment connects a set of.
Claims (1)
1. transformer test industrial frequency generator group, including synchronous motor（1）With synchronous generator（4）It is characterised in that by
One synchronous motor（1）Drag a synchronous generator（4）, synchronous motor（1）For double-speed motor, synchronous motor（1）
Stator have 10 pole coil windings（2）With 12 pole coil windings（3）Double winding, 10 pole coil windings（2）With 12 polar curve circles around
Group（3）Respectively there is lead-out wire and two sets of lead-out wires connect synchronous generator respectively（4）, synchronous generator（4）Connection transformer
（5）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620956052.0U CN205986568U (en) | 2016-08-29 | 2016-08-29 | Power frequency generating set for transformer test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620956052.0U CN205986568U (en) | 2016-08-29 | 2016-08-29 | Power frequency generating set for transformer test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205986568U true CN205986568U (en) | 2017-02-22 |
Family
ID=58037130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620956052.0U Active CN205986568U (en) | 2016-08-29 | 2016-08-29 | Power frequency generating set for transformer test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205986568U (en) |
-
2016
- 2016-08-29 CN CN201620956052.0U patent/CN205986568U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |