JPH03251001A - Power supply controller for electric rolling stock - Google Patents

Abstract

PURPOSE:To resume operation quickly by preparing a power supply operating circuit upon interruption of a main circuit breaker for a rolling stock, opening a previously held circuit through single operation, thereby switching a power supply circuit. CONSTITUTION:Upon opening of a circuit breaker 4 due to some cause, contact 11 is opened to de-energige a relay 12, contact 12-1 opens while contact 12-2 closes, and an operating switch 10 is energized through a control power supply line 22 thus enabling operation of the switch 10. When the switch 10 is turned to side A 10-2, relay 15 is energized through a contact 10-4 which is in the way of switching thus releasing relays 13, 14 which had been self-held prior to operation. Upon completion of switching of the switch 10 to the side A 10-2, only the relay 13 is energized and power is fed from a main transformer 7 only to the A side line 19. In similar manner, power is fed only to the B side line 20 when the switch 10 is turned to side B 13-2.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a power supply circuit control device for a railway vehicle, and in particular,
The present invention relates to a power supply circuit control device for a railway vehicle suitable for improving operability, reliability, and proper vehicle operation.

[Conventional technology]

Conventionally, this type of control has adopted a method in which a contactor is turned on by detecting that the tertiary power supply has started up, or a method in which power is directly transmitted. Incidentally, related devices of this type include, for example, Japanese Patent Application Laid-Open No. 52-29006, Japanese Patent Application Laid-open No. 52-29006,
No. 2-12503 etc. are mentioned.

[Problem to be solved by the invention]

In the case of the above-mentioned conventional control method, a contactor with a large cap is required in order to increase the pantograph installation rate, that is, when power is supplied to multiple train cars from one power supply car. Because it takes a lot of time,
The problem was that the vehicle had to be stopped for a long time, and no consideration was given to vehicle operation or workability.

The object of the present invention is to solve the above-mentioned problems,
An object of the present invention is to provide a source circuit control device for a railway vehicle that can significantly shorten stopping time in the event of an accident and improve vehicle operation and workability.

[Means to solve problem S]

The above object is achieved by interlocking an operating circuit that can freely select the front and rear directions of the electric vehicle with the control circuit of the main circuit breaker.

[For production]

After detecting that the main circuit breaker has been opened by the power control device linked to the main circuit breaker installed on the power supply train, the power supply is turned off. The li operation circuit is prepared and has a circuit configuration that allows opening and switching with a single operation. This allows for effective and complete operation without the need for current interruption by a contactor.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. 1 and 2. FIG. 1 shows the overall configuration during power supply (tertiary). In the same figure, pantograph 2 of train 1
When the voltage rises, power is supplied from the overhead line 3 via the main circuit breaker 4 to the main transformer 7 via the extra-high cable 5, and the voltage is transformed (3
Next) Power is supplied to each car via contactor pieces 8 and 9 as a power source. Next, the electric circuit of the present invention will be explained with reference to FIG.

In FIG. 2, the power circuit breaker 21 normally has its contacts closed, and when the main circuit breaker 4 is turned on under the condition that the control power line n is pressurized and the auxiliary contact 11 closes its circuit, the power circuit breaker 21 is disconnected. Electric hill is excited.

Then, the interlocking contact sea 1 closes the circuit, and the main circuit 4
PjFr device input (ON) indicator light 16 lights up, and at the same time 1
2-2 circuit is opened. As a result, the operation switch l
O is released from the control power supply, so the operation switch lO
control becomes impossible.

Next, when the main circuit breaker is opened and its contact 110 circuit is opened, the main circuit breaker closing detection relay 1 is demagnetized, the interlocking contact 1 circuit is opened, and the indicator light 16 is demagnetized. . At the same time, the circuit 12-2 is closed, so that the control power source is applied to the operation switch 10. From this, it can be confirmed that the operation can be controlled by the operation switch 10 by turning off the indicator light 16.

Next, if the operation switch IO is in the normal position 10-1, the auxiliary relay 1
3 and 14 are pressurized, and their respective interlocking contacts 13-1
and 14-1 closes the circuit, the power supply contactors 8 and 9 are controlled by the controlled power from the permissive breaker.
is pressurized and the circuit of slow-moving contact pieces 8-1 and 9-1 is closed. Thereby, the tertiary power source from the main transformer 7 can be supplied to the λ side inlet 19 and the B side inlet. Also, since the interlocking contacts 13-2 and 14-2 of the auxiliary relays 13 and 14 also close their circuits at the same time, the auxiliary relays 1
3.14 is self-held and at the same time the indicator light 17. 18 lights up, and the entrance line 19. Notifies the power supply from the B side line. At this point, the main circuit breaker 4 is turned on and the auxiliary circuit breaker 4 is turned on.
When closes that circuit, relay! 1i12 is pressurized and the interlocking contact 12-2 opens its circuit (therefore, as mentioned above, control by the operation switch 1O is disabled, but the auxiliary relay 13
and 14 continue to maintain themselves because the control power source is pressurized via the interlocking contact 15-1 of the relay fi15. As a result, since the contactors 8 and 9 are also pressurized, the supply of tertiary power from the main transformer 7 to the A side inlet 19 and the B side inlet is started.

Next, the main circuit is turned on and the operation switch 1 is opened on the condition that the interrupter 4 is released.
When switching 0 to the input side 10-2, the contact 10-2 in the middle of switching
The relay is pressurized via 4, and its interlocking contact j:L15
Since the circuit of -1 is opened, relays 3 and 14 that were self-holding before operation are released, and when switching to the input side 10-2 is completed, only relay 13 is pressurized again and the same operation as described above occurs. After doing so, only the power supply 19 on the A side will be supplied with power.

Further, when switching to the B side 10-3, the same operation is performed, and power can be supplied only when the B side is added.

〔Effect of the invention〕

As explained above, according to the configuration of the present invention, when power is supplied to a plurality of vehicles, power can be freely selectively supplied to the front and rear of the power supply vehicle, so that it is possible to disconnect and release the accident vehicle by simply operating a switch. And it can be done easily. As a result, troublesome work such as removing the crossover between vehicles can be avoided, and the time the vehicle is stopped in the event of an accident can be significantly shortened. Also, the main circuit breaker is opened (off).
Since the power supply circuit is opened and closed under the condition that the power supply circuit is open and closed, the contactor does not cut off the current, so it is possible to carry large current with a small contactor, and it is possible to prevent contact roughness. This makes it easy to improve reliability and operability.

[Brief explanation of drawings]

FIG. 1 is a circuit diagram showing a power supply circuit control circuit according to the present invention;
FIG. 2 is a circuit diagram showing the overall configuration of the power feeding circuit in the train formation.

Claims (1)

[Claims] 1. In the power supply circuit control device for railway vehicles linked to the control circuit of the main circuit breaker, after detecting that the main circuit breaker has opened, the power supply operation circuit is prepared and configured and held before operation with one operation. 1. A power supply circuit control device for a railway vehicle, comprising a control circuit capable of opening a previously used circuit and switching a power supply circuit at the same time.