three-phase four-wire systemとは 意味・読み方・使い方

To provide a three-pole interlocking fuse capable of protecting a phase interruption and an abnormal voltage in a three-phase three wire system distribution line and a three-phase four-wire system distribution line by simultaneously cutting off three phases by a forced short-circuiting method, and also capable of achieving a simple structure, miniaturization of an entire body and a cost reduction.例文帳に追加

強制短絡方式による三相同時遮断により、三相三線式配電線路及び三相四線式配電線路における欠相保護及び異常電圧保護を図り得るとともに、構造の簡素化、全体の小型化並びにコストダウンを達成し得る三極連動ヒューズを提供する。 - 特許庁

Tertiary harmonic voltage E_3 is calculated from capacitance of a measurement capacitor 10 connected to a three-phase power supply of a three-phase three-wire or three-phase four-wire distribution system and from tertiary harmonic current Ic_3 flowing through a grounding wire of the measurement capacitor 10.例文帳に追加

３相３線式又は３相４線式の配電系統の３相電源に接続される測定コンデンサ１０の静電容量と前記測定コンデンサ１０の接地線を流れる３次高調波電流Ｉc_3とから、３次高調波相電圧E_3を算出する。 - 特許庁

To provide a current control type power converter of a three-phase four-wire system to improve a distortion of an output current waveform.例文帳に追加

出力電流波形の歪みを改善することができる三相４線式の電流制御型電力変換器を提供する。 - 特許庁

To provide a displaying method for a vector line can visually confirm presence of a wrong connection to a measured electric line in a three-phase four-wire system with easiness.例文帳に追加

三相４線の被測定電路に対する誤接続の有無を容易に目視確認できるベクトル線の表示方法の提供。 - 特許庁

To provide a disconnection detecting system being applicable to a grounded three-phase four-wire system or three-phase three-wire system transmission an distribution line and capable of accurate detection of disconnection while being affected little by causes of disturbance such as weather and load.例文帳に追加

接地系の三相４線式又は三相３線式の送配電線路に適用することができ、気象や負荷等の外乱要因による影響が少なく正確な断線検出を行うことができる断線検出システムを提供する。 - 特許庁

To provide an uninterruptible power source device which can be applied to a three-phase three-wire system and a three-phase four-wire system dispensing with an insulating transformer, in which the device can be constituted compactly, lightly and inexpensively by lowering necessary DC voltage to lower the withstand voltage of the components used in the device.例文帳に追加

絶縁トランスを用いずに三相３線式と三相４線式に適用でき、必要な直流電圧を低くして装置に使用する部品の耐圧を下げることにより、装置を小型、軽量、安価に構成することができる無停電電源装置を提供する。 - 特許庁

The neutral line of a three phase four wire system power supply is branched off in accordance with each of the phases and the power lines of each phase and the neutral line are connected to a circuit breaker 103 to conduct connecting/breaking operations as inputs of the circuit breaker 103.例文帳に追加

三相四線式電源の中性線を各相に対応させて分岐させて、遮断器１０３の入力として、各相の電力線及び中性線を接続して接続・遮断を行う。 - 特許庁

To provide a three-phase four-wire system load simulator that is simplified in structure and light-weighted by dispensing with a Y-▵-Y transformer, and capable of dispensing with an arithmetic unit or the like to be replaced.例文帳に追加

Ｙ−Δ−Ｙ変圧器を不要にして構造の簡略化、軽量化を図り、演算装置等の交換を不要にした三相四線式負荷模擬装置を提供する。 - 特許庁