GB1172232A - Remote Control Circuits for Electric Motors - Google Patents

Remote Control Circuits for Electric Motors

Info

Publication number
GB1172232A
GB1172232A GB2304666A GB2304666A GB1172232A GB 1172232 A GB1172232 A GB 1172232A GB 2304666 A GB2304666 A GB 2304666A GB 2304666 A GB2304666 A GB 2304666A GB 1172232 A GB1172232 A GB 1172232A
Authority
GB
United Kingdom
Prior art keywords
circuit
switch
relay
contact
resistor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB2304666A
Inventor
Arthur Kynoch
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Coal Industry Patents Ltd
Original Assignee
Coal Industry Patents Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Coal Industry Patents Ltd filed Critical Coal Industry Patents Ltd
Priority to GB2304666A priority Critical patent/GB1172232A/en
Publication of GB1172232A publication Critical patent/GB1172232A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P1/00—Arrangements for starting electric motors or dynamo-electric converters
    • H02P1/02—Details
    • H02P1/04—Means for controlling progress of starting sequence in dependence upon time or upon current, speed, or other motor parameter
    • H02P1/10—Manually-operated on/off switch controlling relays or contactors operating sequentially for starting a motor

Abstract

1,172,232. Control of motors. COAL INDUSTRY (PATENTS) Ltd. 23 May, 1967 [24 May, 1966], No. 23046/66. Heading H2J. A pilot circuit for an electric motor having contactor CC comprises remote control switch RS which is moved to a " start " position to short-circuit resistor R3 and energize relay A with only resistor R2 in series therewith, contact A1 being closed and contact A2 opened. Relay B is now energized, since resistor R4 only is in series with it, whereby contact B1 opens and contacts B2, B3 close. The switch RS is then moved to the " running " position which brings the resistor R3 into circuit. Resistors R1, R2, R3 are now in series with relay A which drops out to re-open contact A1 and close contact A2. The contactor circuit is now completed to start the motor, the relay B being held in even though resistors R3, R4 are in series with its coil. The switch RS may be connected to the motor through an auxiliary cable. In a modification, the switch RS is located at the control unit and is connected to the control circuit through conductors and the pilot core of cable PC. The functions of resistors R2 and R3 are interchanged. In a further arrangement, the switch RS is replaced by push-buttons. The control circuit may be adapted for use with a gate end box operating as an intermediate slave of a multi-conveyer system. An additional relay is operated when auxiliary contacts are closed in the preceding gate end box as soon as it has completed its switching procedure. The relays A and B are then operated as described to close the contactor circuit.
GB2304666A 1966-05-24 1966-05-24 Remote Control Circuits for Electric Motors Expired GB1172232A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2304666A GB1172232A (en) 1966-05-24 1966-05-24 Remote Control Circuits for Electric Motors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2304666A GB1172232A (en) 1966-05-24 1966-05-24 Remote Control Circuits for Electric Motors

Publications (1)

Publication Number Publication Date
GB1172232A true GB1172232A (en) 1969-11-26

Family

ID=10189226

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2304666A Expired GB1172232A (en) 1966-05-24 1966-05-24 Remote Control Circuits for Electric Motors

Country Status (1)

Country Link
GB (1) GB1172232A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1615188A1 (en) * 2004-07-09 2006-01-11 Thomson Licensing Circuit and interface for remote control with hold key

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1615188A1 (en) * 2004-07-09 2006-01-11 Thomson Licensing Circuit and interface for remote control with hold key

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Legal Events

Date Code Title Description
CSNS Application of which complete specification have been accepted and published, but patent is not sealed