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              斷路器操控回路根底常識!

              來源:http://www.cekidots.com/ 日期:2021-10-07 發布人:tongjid

              (1)應有對操控電源的監督回路。斷路器的操控電源為首要,一旦失掉電源斷路器便無法操作。因而,不論何種要素,當斷路器操控電源不見時,應宣告聲、光信號,提示值勤人員及時處理。關于遙控變電所,斷路器操控電源的不見,應宣告遙信。

              (1) There shall be a supervision circuit for the control power supply. The control power supply of the circuit breaker is the primary. Once the power supply is lost, the circuit breaker cannot be operated. Therefore, no matter what element, when the control power supply of the circuit breaker is missing, the acoustic and optical signals shall be announced to prompt the personnel on duty to deal with it in time. For the remote control substation, if the control power supply of the circuit breaker is missing, the remote signaling shall be announced.
              (2)應有避免斷路器“跳動”的電氣閉鎖設備,發作“跳動”對斷路器對錯常風險的,簡略致使安排損害,乃至致使斷路器的爆破,故有必要選用閉鎖辦法。斷路器的“跳動”景象一般是在跳閘、合閘回路一同接通時才發作。“防跳”回路的計劃應使得斷路器呈現“跳動”時,將斷路器閉鎖到跳閘方位。
              (2) There shall be electrical locking equipment to avoid the "jumping" of the circuit breaker, and the risk of "jumping" to the right and wrong of the circuit breaker will simply lead to the damage of the arrangement and even the explosion of the circuit breaker. Therefore, it is necessary to select the locking method. The "jumping" of the circuit breaker usually occurs when the tripping and closing circuits are connected together. The "anti tripping" circuit shall be planned so that when the circuit breaker presents "jumping", the circuit breaker shall be locked to the tripping position.
              ABB微型斷路器價格
              (3)應常常監督斷路器跳閘、合閘回路的無缺性。當跳閘或合閘回路缺陷時,應宣告斷路器操控回路斷線信號。
              (3) The integrity of circuit breaker tripping and closing circuits shall be monitored frequently. When the tripping or closing circuit is defective, the circuit breaker control circuit disconnection signal shall be declared.
              (4)關于斷路器的合閘、跳閘狀況,應有顯著的方位信號,缺陷主動跳閘、主動合閘時,應有顯著的動作信號。
              (4) As for the closing and tripping conditions of the circuit breaker, there shall be significant azimuth signals. When the defect trips and closes actively, there shall be significant action signals.
              (5)跳閘、合閘指令應堅持滿意長的時刻,而且當跳閘或合閘結束后,指令脈沖應能主動免除。因斷路器的安排動作需求有必定的時刻,跳合閘時主觸頭抵達規矩方位也要有必定的行程,這些加起來便是斷路器的固有動作時刻,以及滅弧時刻。
              (5) The tripping and closing commands shall last for a satisfactory long time, and the command pulse shall be able to be actively exempted after tripping or closing. Due to the arrangement of the circuit breaker, the action needs a certain time, and the main contact must have a certain stroke when reaching the regular direction during tripping and closing. These add up to the inherent action time and arc extinguishing time of the circuit breaker.
              指令堅持滿意長的時刻便是確保斷路器能牢靠的跳閘、合閘。為了加速斷路器的動作,添加跳、合閘線圈中電流的添加速度,要盡或許減小跳、合閘線圈的電感量。為此,跳、合閘線圈都是按短時帶電計劃的。因而,跳合閘操作結束后,有必要主動斷開跳合閘回路,不然,跳閘或合閘線圈會燒壞。一般由斷路器的輔佐觸點主動斷開跳合閘回路。
              When the command persists for a long time, it is to ensure that the circuit breaker can reliably trip and close. In order to accelerate the action of the circuit breaker and add the current addition speed in the tripping and closing coils, the inductance of the tripping and closing coils should be reduced as much as possible. Therefore, the tripping and closing coils are planned according to short-time electrification. Therefore, after the tripping and closing operation, it is necessary to actively disconnect the tripping and closing circuit, otherwise the tripping or closing coil will be burned out. Generally, the auxiliary contact of the circuit breaker actively disconnects the tripping and closing circuit.
              (6)斷路器的操作動力不見或短少時,例如繃簧安排的繃簧未拉緊,液壓或氣壓安排的壓力下降等,應閉鎖斷路器的動作,并宣告信號.SF6氣體絕緣的斷路器,當SF6氣體壓力下降而斷路器不能牢靠作業時,也應閉鎖斷路器的動作并宣告信號。
              (6) When the operating power of the circuit breaker is missing or short, such as the tension spring arranged by the tension spring is not tensioned, the pressure drop arranged by hydraulic or pneumatic pressure, etc., the action of the circuit breaker shall be locked and the signal shall be announced. For SF6 gas insulated circuit breaker, when the SF6 gas pressure drops and the circuit breaker cannot operate reliably, the action of the circuit breaker shall also be locked and the signal shall be announced.


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