New pump jack uses magnet electric rotary motor
The new Mitey Titan pump jack uses a permanent magnet electric rotary motor that features large torque, low rotation speed, low noise, and high power.
The pump jack was developed and designed by Guizhou Aerospace Linquan Motor Co. Ltd., Guizhou, China, in conjunction with Zhejiang University, Hangzhou, China. Authorized distributors include MTech Industries, Edmonton, and Shanghai Grandway Telecom Tech Co. Ltd., Shanghai.
Features of the unit include high efficiency, long life span, simplicity in structure, ease of operation, light weight, and small area needed for installation and operation. The pump jack experiences what the firms say are power savings upwards of 50% due to motor and frequency conversion technology.
Additional components of the pumping unit are the frame and frequency conversion control devices. Mechanical transmission parts have been eliminated with the exception of the motor. The pump jack has direct drive, eliminating the need for a gearbox.
The motor is a three dimensional permanently magnetic electric type compounded by a novel double-plate electric motor and an external rotor electric motor. Utilizing know-how such as pole conversion, frequency conversion, new permanent magnetic materials, plate-panel electric motor, and the external-rotor electric motor in addition to improvements in structure, material, manufacturing technology, and the intelligent control system, this motor offers higher torque vs. existing low speed and high torque motors, the firms say.
The permanent magnet electric rotary motor works within the pumping unit's tower type structure and is supported by a cylindrical steel post. The motor directly drives the polished rod through the belt system. The stroke and stroke frequency of the rod are adjusted within a given range through a frequency conversion unit. A suspended weight is used as the balancing weight, and the base flange of the post is fixed to the foundation by bolts.
Source: MTech Industries, 6329 – 76 Ave., Edmonton, Alta. T6K 2T9.
Trip coil monitor helps improve power system reliability
The newly released SEL-2652 trip coil monitor checks on the connections and circuit continuity of the circuit breaker trip coil and lockout relay to give power system operators confidence that the breaker is ready when needed.
The self-powered SEL-2652 indicates circuit breaker status with a clearly visible external LED and a contact output for alarms or SCADA.
The unit provides constant monitoring of the health of trip circuits and lockout relays with an easy-to-use, reliable device, the firm says.
Source: Schweitzer Engineering Laboratories Inc., 2350 N.E. Hopkins Court, Pullman, WA 99163.
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