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31, Alternating current motor is the important power equipment applicated in various fields.

32, THE DESIGN OF MICRO - COMPUTER CONTROL SYSTEM FOR THE SPEED ADJUSTMENT OF ALTERNATING CURRENT ELEVATOR.

33, The method is suitable to short distance line such as the subway power alternating current transmission line.

34, On the basis of analyzing the current wave in three phase alternating current system, the paper put forward a control method to realize zero current interrupt in three phase intelligent AC contactor.

35, In this paper, a high speed high voltage pulsed alternating current generator for a self-contained power system was designed and analyzed.

36, This symbol means an alternating current ( AC ) power line.

37, The alternating current was sent to the input end of the autotransformer and pressure-rise circuit after adjusting voltage.

38, The outdoor high-voltage alternating current injection type drop-off fuse has the advantages of high tightness in the on-off mechanical static matching and moving matching, and high safe performance.

39, The phenomenon undercorona is evidently different with that under alternating current corona.

40, The telecontrol system of alternating current motor based on MSP430 single chip is presented in this paper. Also the hardware constitution and design of software are given in detail.

41, A device, such as a diode, that alternating current to direct current.

42, An open-ended magnetic core with alternating current coils was laid on the flange surface to come a closed magnetic circuit .

43, Alternating current reverses from negative to positive about 60 times a second.

44, A device used to change the voltage of an alternating current signal or to change the impedance of an alternating current circuit.

45, The alternating current excitation motor (ACEM) is a kind of novel adjustable speed motor by changing frequency.

46, In a normal alternating current power system, the voltage varies sinusoidally at a specific frequency,[http://sentencedict.com/alternating current.html] usually 50 or 60 hertz.

47, The utility model relates to a differential alternating current adjustable - speed motor device.

48, On the railway of electrization, power supply mode is requested to be the single-phase alternating current.

49, A generator shown in the above diagram produces alternating current.

50, In the expression of energies, there is an alternating current between assertiveness and apathy.

51, Either direct or alternating current may be used for driving electric trains.

52, Today's alternating current power grid evolved after 1896, based in part on Nikola Tesla's design published in 1888 (see War of Currents).

53, The frequency control of motor speed is used for alternating current motor of main winch on No1 BF charging system, so that it is possible to carry out control of skip moving speed.

54, VC type electrometer is an electrostatic instrument of alternating current induction type.

55, In a feedback oscillator the negative resistance will be evident only as an alternating current parameter of the circuit .

56, It was powered by dual alternating current motors and acid batteries.

57, In this paper, the early hydration processes of cement pastes including various contents of coal stone were studied by alternating current impedance spectroscopy.

58, The electromagnetic separation from molten metal only by alternating current is feasible.

59, This paper introduces the principle and specific property of asynchronous alternating current generator and its application.

60, It mainly is insist of IPC(industry process computer), intelligent regulator(IR), programmable logic controller(PLC), frequency-converter and alternating current motor.