Electricity: motive power systems – Braking – Automatic and/or with time-delay means
Patent
1982-07-14
1984-10-09
Miller, Jr., George H.
Electricity: motive power systems
Braking
Automatic and/or with time-delay means
318466, 318127, 417415, H02P 104
Patent
active
044764189
ABSTRACT:
A well pump control system is disclosed for utilization with a conventional well pump having a stationary member and a reciprocating member. The reciprocating member operates a down-hole pump and is attached to a rocking beam. The rocking beam is driven by an electric motor through a counterbalanced crank. The position of the counterbalanced crank and the speed of the electric motor are utilized to operate a reduced voltage starter which acts to control the voltage applied to the electric motor. In this manner, voltage may be selectively and gradually applied to and removed from the electric motor at selected points during the pump cycle to both minimize power consumption and increase slip during heavy loading, by allowing the momentum of the crank to operate the reciprocating member during at least a portion of each cycle of the pump.
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Evans Arthur G.
Miller Jr. George H.
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