CN206149011U - Binary channels split -phase motor opens dynamic relay - Google Patents
Binary channels split -phase motor opens dynamic relay Download PDFInfo
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- CN206149011U CN206149011U CN201621151941.6U CN201621151941U CN206149011U CN 206149011 U CN206149011 U CN 206149011U CN 201621151941 U CN201621151941 U CN 201621151941U CN 206149011 U CN206149011 U CN 206149011U
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Abstract
The utility model relates to a binary channels split -phase motor opens dynamic relay, including two channel circuit of A, B that constitute by sampling circuit, voltage stabilizing circuit, comparison circuit, delay circuit, comparator relay, delay relay respectively, among the A channel circuit among comparator relay and the B channel circuit comparator relay after parallelly connected again with A channel circuit in among delay relay and the B channel circuit delay relay connect in parallel, be connected to voltage stabilizing circuit 2 and contact. A, two passageway complement each other of B, one of them passageway work, the spare passageway of another passageway conduct, changeable extremely another passageway work guarantees that the split -phase motor opens dynamic relay's normal work when one of them passageway breaks down, can effectively prevent to cause the split -phase motor to damage because of the split -phase motor opens the dynamic relay trouble, more split -phase motor normal boot is ensured on safe and reliable ground.
Description
Technical field
The utility model is related to electric equipments of electric locomotive technical field, and in particular to a kind of split-phase motor starting relay.
Background technology
In the accessory system of single-phase ac power supply electric locomotive, typically all from threephase asynchronous as auxiliary electricity
Machine, therefore locomotive domestic demand is provided with phase splitting device, and the single-phase alternating current of contact net is transformed to into the three-phase alternating current of same frequency, is used for
Stand-by motor, phase splitting device is driven to have rotary split-phase motor and AuCT（Static split-phase motor）, domestic Shaoshan series direct current
The accessory system of transmission electric power locomotive is mostly adopted and powered to auxiliary circuit from rotary split-phase motor.Rotary split-phase motor can be considered
The assembly of single-phase motor and threephase generator, itself is without detent torque, it is necessary to have certain Starting mode, frequently with resistance
Phase-splitting starting mode.
Access between the electronic phase winding of split-phase motor second and generating phase winding and start resistance, come by split-phase motor starting relay
Monitoring start-up course simultaneously controls to start the break-make of resistance loop.Specifically, when split-phase motor connects single phase alternating current power supply and accesses
After starting resistance, start to start, now, split-phase motor starting relay monitors split-phase motor generating phase voltage to reflect split-phase motor indirectly
Rotating speed, when split-phase motor rotating speed reaches 0.9 times of about rated speed, namely monitors the close comparison voltage of generating phase voltage（Volume
Fixed net pressure is about 220V）When, startup resistance loop is cut-off in split-phase motor starting relay action, gets rid of startup resistance, split-phase motor
Startup is completed, while split-phase motor starting relay is lost the job, power supply is in idle state.
To ensure that split-phase motor can normally start, it is necessary to rationally control the time that excision starts resistance, the too early or mistake of excision
It is unfavorable that evening is to split-phase motor, or even can cause split-phase motor scaling loss.Existing split-phase motor starting relay is designed using single channel, its
Monitoring reliability cannot hundred hundred ground be guaranteed.
The content of the invention
The purpose of this utility model is to overcome drawbacks described above, there is provided a kind of simple structure, be skillfully constructed, monitoring reliability
High binary channels split-phase motor starting relay.
To solve above-mentioned technical problem, the utility model is adopted the following technical scheme that：A kind of binary channels split-phase motor start after
Electrical equipment, including one be made up of sample circuit, mu balanced circuit, comparison circuit, delay circuit, comparator relay, time-delay relay
A channel circuit, also another by sample circuit, mu balanced circuit, comparison circuit, delay circuit, comparator relay, time delay after
The channel B circuit of electrical equipment composition is logical with A again after comparator relay parallel connection in comparator relay and channel B circuit in A channel circuit
Time-delay relay is in parallel in time-delay relay and channel B circuit in road circuit, is connected to external output contact.
Two passages of A, B complement each other, one of channels operation, and another passage is used as backup path.When wherein one
When individual passage breaks down, can switch to another passage to ensure the normal work of split-phase motor starting relay.So can have
Effect prevents from causing split-phase motor to damage because of split-phase motor starting relay failure, therefore can guarantee that split-phase motor is normal to safety and reliability
Start.
Description of the drawings
Fig. 1 is single channel split-phase motor starting relay theory diagram.
Fig. 2 is binary channels split-phase motor starting relay theory diagram.
Fig. 3 is that binary channels split-phase motor starting relay panel arranges schematic diagram.
Specific embodiment
Specific embodiment of the present utility model is described further below in conjunction with the accompanying drawings.
As shown in figure 1, existing single channel split-phase motor starting relay is by sample circuit, mu balanced circuit, comparison circuit, time delay
After circuit, comparator relay, two contact shunts of time-delay relay composition, comparator relay and time-delay relay, connect respectively
It is connected to external output contact J1 and J2.Input voltage Uab represents line voltage, and pick car boost voltage in practice；Ucn
Connect split-phase motor generating phase voltage.Two input voltages of sampled circuit are compared detection in comparison circuit, and its difference connects
A high level is exported when nearly 0 drives comparator relay action, J1, J2 point closure, relay indicating light green-emitting to indicate.This split-phase motor
The action setting valve of starting relay is Ucn/Uab=1V ± 10%.Because split-phase motor starting time can not it is long can not be too short, institute
Delay protection circuit increased with this circuit.If comparison circuit failure and be unable to property cut start resistance, Jing after 6s ± 10%
Delay circuit will drive time-delay relay action, J1, J2 point to close, and so as to cut off startup resistance by force, relay indicating light is rubescent
Color is indicated.
As shown in Fig. 2 binary channels split-phase motor starting relay increases by one on the basis of existing single-pass said function
Passage, be divided into A channel and channel B, two passages complement each other, when one of passage goes wrong, another lead to
Road also can guarantee that split-phase motor normally starts.Other keep original form constant external wiring way, operating voltage and sampled voltage.
A channel comparator relay and channel B comparator relay parallel connection after again with time-delay relay and channel B circuit in A channel circuit in
Time-delay relay is parallel-connected to J1, J2 point, so can guarantee that split-phase motor normally starts to safety and reliability.
As shown in figure 3, symbol on panel：1-channel switch A/B；2-manual/auto switch S/Z；3-hand push button；
4-relay indicating light；5-power supply indicator.Binding post deployment scenarios：C, N-meet split-phase motor output voltage Ucn；A, B-connect
AC network presses Uab；110V, 0V-connect DC110V DC voltages（110V connects "+", and 0V connects "-"）；J1, J2-connect externally to export and touch
Point.
When manual/auto switch 2 is allocated to Z（Automatic position）, when channel switch is allocated to A positions, A channel work, channel B not work
Make, connect relay power, the rubescent color of A channel power supply indicator 5 is indicated.Now Ucn gradually rises, and A channel enters to Ucn, Uab
Row detection, when Ucn/Uab=1 ± 10%, the green-emitting of A channel relay indicating light 4 is indicated, J1, J2 closing of contact, and excision starts electricity
Resistance.When the delay time of delay circuit reaches 6S ± 10% in A channel, the rubescent color of A channel relay indicating light 4 is indicated, J1, J2 are touched
Point closure, excision starts resistance.
When manual/auto switch 2 is allocated to Z（Automatic position）, when channel switch is allocated to B positions, channel B work, A channel not work
Make, connect relay power, the rubescent color of channel B power supply indicator 5 is indicated.Now Ucn gradually rises, and channel B is entered to Ucn, Uab
Row detection, when Ucn/Uab=1 ± 10%, channel B work indicates that 4 lamp green-emittings are indicated, J1, J2 closing of contact, excision starts electricity
Resistance.When the delay time of delay circuit reaches 6S ± 10% in channel B, the rubescent color of channel B relay indicating light 4 is indicated, J1, J2 are touched
Point closure, excision starts resistance.
When manual/auto switch is allocated to S（Manual position）, no matter channel switch be allocated to He Weishi, and Ucn, Uab and split-phase motor are opened
Motor type relay disconnects, i.e., Ucn, Uab do not detected.When channel switch is allocated to respectively A, channel B, time delay electricity in respective channel
When the delay time on road reaches 6S ± 10%, the rubescent color of relay indicating light indicates that J1, J2 closing of contact, excision starts resistance.
Hand push button is pressed before delay circuit action, respective channel portable lamp green-emitting is indicated, can equally make J1, J2 closing of contact,
Excision starts resistance.When manual/auto switch is allocated to Z (automatic position), hand push button 3 cuts little ice.
Delay circuit is to more reliably cut off startup resistance, it is ensured that the protection circuit of split-phase motor clean boot, i.e., when
When A, the comparison circuit of channel B are out of order, also excision can start resistance in 6s ± 10%.
Points for attention：Wiring please be check using before, confirming to be powered after wiring is correct uses.If in energization 6S not
Complete circuit test, delay protection circuit will action, DC110V power supply electrifyings are now please given again, continue to complete circuit survey
Examination.
Method of testing：
Go through access DC110V voltages between errorless rear DC110V, 0V two-terminal；2 points of access AC220V voltages of A, B
（Uab）, now power supply indicator is bright, relay indicating light does not work, relay disconnects.
Comparison circuit is tested：Manual/auto switch is allocated to into automatic position, by 2 points of C, N access adjustable current ratio compared with
Voltage (Ucn), from small to large adjustment exchange comparison voltage Ucn, until relay just connect, relay indicating light green light（This
When should meet Ucn/Uab=1 ± 0.1V）.Again from big to small adjustment exchange comparison voltage Ucn, until relay just disconnect,
Indicator lamp extinguishes（Ucn/Uab=1 ± 0.1V should now be met）.
Delay circuit is tested：After connecting DC110V voltages, 6S ± 10% relay indicating light when red, the actuating of relay are waited,
Then judge that delay protection circuit is working properly.
Manual/auto switch is allocated to manual position, and when pressing hand push button, relay is connected, indicator lamp green light.
The utility model is not limited to above-mentioned embodiment, in the knowledge that art those of ordinary skill possesses
In the range of, can be so that various changes can be made on the premise of without departing from the utility model objective.
Claims (1)
1. a kind of binary channels split-phase motor starting relay, including one by sample circuit, mu balanced circuit, comparison circuit, time delay electricity
Road, comparator relay, the A channel circuit of time-delay relay composition, it is characterised in that：Also include another by sample circuit, steady
Volt circuit, comparison circuit, delay circuit, comparator relay, the channel B circuit of time-delay relay composition, in the A channel circuit
It is electric with time-delay relay in A channel circuit and channel B again after comparator relay parallel connection in comparator relay and the channel B circuit
Time-delay relay is in parallel in road, is connected to external output contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621151941.6U CN206149011U (en) | 2016-10-31 | 2016-10-31 | Binary channels split -phase motor opens dynamic relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621151941.6U CN206149011U (en) | 2016-10-31 | 2016-10-31 | Binary channels split -phase motor opens dynamic relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206149011U true CN206149011U (en) | 2017-05-03 |
Family
ID=58622128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621151941.6U Active CN206149011U (en) | 2016-10-31 | 2016-10-31 | Binary channels split -phase motor opens dynamic relay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206149011U (en) |
-
2016
- 2016-10-31 CN CN201621151941.6U patent/CN206149011U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200814 Address after: No.66, Shuangfeng Village, jiaojiling, Tianxin street, Shifeng District, Changsha City, Hunan Province Patentee after: Zhuzhou Fengda Locomotive Accessories Co., Ltd Address before: 412001 Hunan Province, Zhuzhou city red flag Road Shuangfeng Village No. 66 Patentee before: ZHUZHOU FENGDA ELECTRIC LOCOMOTIVE FITTINGS INDUSTRIAL Co.,Ltd. |