CN201247293Y - Phase splitter no-load test line - Google Patents
Phase splitter no-load test line Download PDFInfo
- Publication number
- CN201247293Y CN201247293Y CNU2008201175605U CN200820117560U CN201247293Y CN 201247293 Y CN201247293 Y CN 201247293Y CN U2008201175605 U CNU2008201175605 U CN U2008201175605U CN 200820117560 U CN200820117560 U CN 200820117560U CN 201247293 Y CN201247293 Y CN 201247293Y
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- phase
- load test
- split
- contactor
- splitter
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- Expired - Fee Related
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Abstract
The utility model discloses a phase splitter no-load test line, wherein a first three-phase alternating current contactor (1K), a three-phase voltage regulator (T), a second three-phase alternating current contactor (2K) of the phase splitter no-load test line are connected between a three-phase alternating power supply and a phase splitter in turn, wherein a single-phase alternating current contactor (1K) is further connected on a circuit on one phase between the second three-phase alternating current contactor and the phase splitter. The phase splitter no-load test line can achieve three-phase low-voltage starting, single-phase rotating and test of the phase splitter of an electric locomotive. The phase splitter no-load test line solves the no-load test problem of a unit phase splitter without test conditions, which can do no-load test for a phase splitter as long as having a three-phase voltage regulator which is more than a few dozens of KVA.
Description
Technical field
The utility model refers in particular to a kind of split-phase motor no-load test circuit applicable to electric locomotive split-phase motor no-load test relevant for a kind of electric car no-load test device.
Background technology
The AC power of electric locomotive is a single-phase electricity, and all stand-by motors all are threephase motors on the car, and split-phase motor is exactly the special machines that single-phase electricity is changed into three-phase electricity, and the three-phase electricity of its output is used for all threephase motors.
Split-phase motor all will be tested after making or repairing, but wants single-phase full-voltage starting split-phase motor, and two indispensable conditions are: 400kVA above single-phase voltage regulating device and the enough big power supply grid capacity of capacity must be arranged, because starting current will reach more than the 1200A.The unit that has does not have large-scale pressure regulator, or because the restriction of net capacity in the factory building, can't total head, single-phase starting split-phase motor, thereby no-load test and the running that can't carry out the electric locomotive split-phase motor are checked.
The utility model content
The technical matters that the utility model solves is: a kind of split-phase motor no-load test circuit is provided, and it can carry out the no-load test of split-phase motor.
Technical solution of the present utility model is: a kind of split-phase motor no-load test circuit, wherein, between three-phase alternating-current supply and split-phase motor, be connected with first three-phase ac contactor, three-phase regulator, second three-phase ac contactor of this test circuit in regular turn, wherein, between described second three-phase ac contactor and split-phase motor, wherein one also be connected with a single-phase AC contactor on the circuit mutually.
Aforesaid split-phase motor no-load test circuit, wherein, this test circuit also comprises the control circuit that carries out interlocked control to described single-phase AC contactor and first, second three-phase ac contactor.
Characteristics of the present utility model and advantage are: the utility model can be realized the starting of three-phase low pressure, single-phase operation and the test of electric locomotive split-phase motor.This line unit has solved does not possess the no-load test problem of test condition unit to split-phase motor, as long as have more than tens kilovolt-amperes, the following three-phase regulator of 100kVA, just can carry out the no-load test of split-phase motor.
Description of drawings
Fig. 1 is a governor circuit synoptic diagram of the present utility model.
Fig. 2 is the circuit diagram of a specific embodiment of the present utility model.
Fig. 3 is the control circuit wiring diagram of this specific embodiment of the present utility model.
Embodiment
Following conjunction with figs. and specific embodiment are described in further detail embodiment of the present utility model.
As shown in Figure 1, the utility model proposes a kind of split-phase motor no-load test circuit, this test circuit is connected between three-phase alternating-current supply and the split-phase motor, comprise the first three-phase ac contactor 1K, three-phase regulator T, the second three-phase ac contactor 2K in regular turn, wherein, between described second three-phase ac contactor and split-phase motor, one also be connected with a single-phase AC contactor 3K on (as the W phase) circuit mutually.
In a specific embodiment of the present utility model; as Fig. 2, shown in Figure 3; this test circuit also is provided with control circuit KJ between the second three-phase ac contactor 2K and single-phase AC contactor 3K; so that described single-phase AC contactor 3K and each three- phase ac contactor 1K, 2K are carried out interlock protection, as shown in Figure 3.
By above-mentioned test circuit, can adopt following test procedure, realize the starting of split-phase motor three-phase low pressure, single-phase operation and test:
1, the closed single-phase AC contactor 3K and the first three-phase ac contactor 1K, when treating the pressure regulator output 100V left and right sides, the closed second three-phase ac contactor 2K thus, can realize the three-phase low pressure starting of electric locomotive split-phase motor.
2, behind the starting split-phase motor, disconnect single-phase AC contactor K3, the no-load test of split-phase motor is carried out in pressure regulation during to 380V.
No-load test line applications of the present utility model in the no-load test platform, can be realized the starting of three-phase low pressure, single-phase operation and the test of electric locomotive split-phase motor.Wherein, except that above-mentioned no-load test circuit, circuits such as other detection of testing table, signal, protection can be provided with routinely, and therefore, test circuit device of the present utility model generally needn't be provided with special-purpose testing table, can share with common three-phase current motor testing table.
Because above-mentioned line feature, even if in the unit that does not have the enough big power supply grid capacity of pressure regulator more than the 400kVA and capacity, (be preferably more than the 100kVA 380V/0～600V), just can carry out the no-load test of split-phase motor as long as have three-phase regulator more than tens kilovolt-amperes; And this testing table can carry out the test of other threephase asynchronouses as usual when not carrying out the split-phase motor no-load test; At last, having the testing table of this circuit, the time is single-phase operation though carry out the split-phase motor test, because the interlock protection of circuit can not cause the single-phase starting when carrying out other threephase asynchronouses tests.
Claims (2)
1, a kind of split-phase motor no-load test circuit, it is characterized in that, between three-phase alternating-current supply and split-phase motor, be connected with first three-phase ac contactor (1K), three-phase regulator (T), second three-phase ac contactor (2K) of this test circuit in regular turn, wherein, between described second three-phase ac contactor and split-phase motor, wherein one also be connected with a single-phase AC contactor (1K) on the circuit mutually.
2, split-phase motor no-load test circuit as claimed in claim 1 is characterized in that, this test circuit also comprises the control circuit that carry out interlocked control of described single-phase AC contactor (3K) with first, second three-phase ac contactor (1K, 2K).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201175605U CN201247293Y (en) | 2008-07-14 | 2008-07-14 | Phase splitter no-load test line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201175605U CN201247293Y (en) | 2008-07-14 | 2008-07-14 | Phase splitter no-load test line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201247293Y true CN201247293Y (en) | 2009-05-27 |
Family
ID=40731113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201175605U Expired - Fee Related CN201247293Y (en) | 2008-07-14 | 2008-07-14 | Phase splitter no-load test line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201247293Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102928682A (en) * | 2011-08-09 | 2013-02-13 | 南车洛阳机车有限公司 | Meshless high-voltage test device of electric locomotive |
| CN103487681A (en) * | 2013-09-11 | 2014-01-01 | 苏州市龙源电力科技股份有限公司 | Alternating current voltage-adjusting resistor cart |
-
2008
- 2008-07-14 CN CNU2008201175605U patent/CN201247293Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102928682A (en) * | 2011-08-09 | 2013-02-13 | 南车洛阳机车有限公司 | Meshless high-voltage test device of electric locomotive |
| CN102928682B (en) * | 2011-08-09 | 2016-05-25 | 南车洛阳机车有限公司 | High-voltage testing device without electric network for electric locomotives |
| CN103487681A (en) * | 2013-09-11 | 2014-01-01 | 苏州市龙源电力科技股份有限公司 | Alternating current voltage-adjusting resistor cart |
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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: 20090527 Termination date: 20130714 |