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31. A novel rectifier type high temperature superconducting fault current limiter for a three-phase power system was developed in the paper.

32. To ensure that the three-phase gyroscope motor can work normally, it's necessary to measure the effective value of its AC driving signal.

33. Three-phase motor is one of broad-spectrum equipments in electrical and mechanical industry. Its driving force is the precondition that driven equipment can work normally.

34. In order to meet the need of oil testing and metering in high pressure well in desert oilfield , a three-phase separator for use in desert oilfield is developed.

35. On the basis of three-phase inverting circuit, this paper describes how to make the control method of open loop system in closed loop system.

36. This paper focuses on a three-phase prepaid power meter's program design and implementation which based on CPU card and security module ESAM.

37. Three-phase half wave controlled rectifier, hysteresis comparison mode current track control, and realization of SVPWM by S-Function are used as examples to describe the usage of the software.

38. The characteristics, principle and structure of the three-phase pipe-type tap changer are intro duced.

39. The research probes into the feasibility on low concentration wastewater treated by inner cycle of aerobe in three-phase bio-fluidized bed and the growing characteristics of biological-membrane.

40. Research on the zero-current-breaking control (ZCBC) for intelligent AC contactor and realize the micro-arc-energy breaking control in three-phase circuit.

41. Three-phase isolation transformer has been widely used in AC 50-60HZ 500V three-phase power supply voltage does not exceed the occasion.

42. A question is likely to occupy the first part of the ubiquitous three-phase IRF exchange.

43. A new DSP based hybrid power filter designed under the condition of three-phase four-wire system is presented.

43. Sentencedict.com try its best to gather and create good sentences.

44. A DC model is presented on the basis of the operation principle of a new three-phase AC/DC converter with PFC.

45. It consists of three-phase or single-phase AC voltage by the step-down and full-wave rectifier (or rectifier bridge) has been, no regulator and ping-wave large enough to require power.

46. The paper simulates a three-phase system, analyzes influence of induction motor dynamics on voltage stability, and gives methods to improve voltage stability of induction motor nodes.

47. Comparing with three-phase motor system, multiphase motor system has some obvious superiority.

48. Among the three-phase power-factor correction circuits, the full decoupling circuit is especially suitable for high power fields because of its high input power and good electrical performance.

49. Aiming at the character that zero wire exists in three-phase four-wire system(sentencedict.com), the active power filter in three-phase four-wire system has its own character on main circuit and control circuit.

50. Moreover, three-phase four-wire active filters can suppress zero line current, and solve symmetric problem of system effectively.

51. This is the origin of a dynamometer. AC dynamometer is usually a three-phase AC commutator motor and dynamometer, tachometer generator combination.

52. The effectiveness can be proved in the application in the DSP control system of the three-phase induction motor.

53. This paper analyzes the principle and the application scope of three-phase three-wire system and three-phase four-wire system for UPQC.

54. A type of variable subdivision high performance driving power supply for stepmotor has been presented in the paper which is used to drive three-phase reaction stepmotor.

55. The capability and principle and the characteristics of the check-demarcate equipment for a kind ofconvenient schlep three-phase ammeter is introduced in the paper.

56. This article is the technical summarization that we developed over past two years phase-locked velocity servo loop for three-phase asynchronous motor that drives gas-dynamic free-rotor gyroscope.

57. It consists of single-phase three-phase ac voltage or by buck and whole wave rectifier voltage and filter get, no requirement, power than electromagnetic clutch power rating 1.5 times above.

58. Based on features of negative sequence components in the three-phase system, an islanding detection method based on the active negative sequence component disturbance (ANSCD) is proposed.

59. The latest three-phase clock signal control method was used to control the working state of charge pump.

60. In this paper , principle of design and study of three-phase induction motor power measuring device is discussed in theory and practice. And practical measuring unit circuit is used in the device.