This device use the principle of additional DC power supply in main feeding switch, and use the principle of direction of zero sequence power in branch feeding switch.
该装置在总馈电开关处的漏电保护装置使用附加直流电源原理，在分支馈电开关处的漏电保护装置使用零序功率方向式保护原理。
Electrified railway negative sequence and the harmonic seriously affected grid power quality, reduced the reliability of power supply.
电气化铁路产生的负序、谐波严重地影响了电网电能质量，降低了电网供电的可靠性。
The sequence of water supply is that the Power Plant generating and water supply for living is prior, followed by water for industry and irrigation in order.
供水次序为先蓄能电站发电与生活供水，而后依次为工业用水与农业灌溉。
Low and even forward (backward) and zero sequence impedance improves the quality of power supply.
电缆具有较低且均匀的正(逆)序和零序工作阻抗，有利于改善供电品质。
Three-phase power supply phase sequence access must follow the relationship shown, phase sequence dislocation will guide the limit switch not properly limit the serious consequences.
三相电源的接入必须按照图示的相序关系，相序错位将导之限位开关不能正确限位的严重后果。
The thermal resistance temperature sensor, the electric-bridge circuit, the single power supply op amp, the monolithic computer and the moving magnetic coil are electrically connected in sequence.
热电阻传感器、电桥电路、单电源运放、单片计算机、动磁线圈依次电连接；
The thermal resistance temperature sensor, the electric-bridge circuit, the single power supply op amp, the monolithic computer and the moving magnetic coil are electrically connected in sequence.
热电阻传感器、电桥电路、单电源运放、单片计算机、动磁线圈依次电连接；
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