초록 ▼

A fault point location system comprises substation 1 installed along transmission and distribution line (TD line) to send a surge detection time (SD time), and master station 2 locates fault points based on the information. Substation 1 stores and updates past voltage or current waveforms of the TD

A fault point location system comprises substation 1 installed along transmission and distribution line (TD line) to send a surge detection time (SD time), and master station 2 locates fault points based on the information. Substation 1 stores and updates past voltage or current waveforms of the TD line, stores a surge recognition level L2 (higher than a noise level), and a surge waveform starting level L1 (set lower than level L2), determines as the SD time, in the case where the voltage or current of the TD line exceeds level L2, the time at which the voltage or current first exceeded level L1 after going back through the waveforms stored from the time at which the surge recognition level was exceeded, and sends the SD time to master station 2 via the communication network.

대표청구항 ▼

A fault point location system comprises substation 1 installed along transmission and distribution line (TD line) to send a surge detection time (SD time), and master station 2 locates fault points based on the information. Substation 1 stores and updates past voltage or current waveforms of the TD

A fault point location system comprises substation 1 installed along transmission and distribution line (TD line) to send a surge detection time (SD time), and master station 2 locates fault points based on the information. Substation 1 stores and updates past voltage or current waveforms of the TD line, stores a surge recognition level L2 (higher than a noise level), and a surge waveform starting level L1 (set lower than level L2), determines as the SD time, in the case where the voltage or current of the TD line exceeds level L2, the time at which the voltage or current first exceeded level L1 after going back through the waveforms stored from the time at which the surge recognition level was exceeded, and sends the SD time to master station 2 via the communication network. control unit box; and, at least one sensor mounted on the power assembly for detecting movement of the crank arm and pedal assembly and generating a signal that is transmitted to the electronic control unit box. 31. The power assembly according to claim 30, wherein the at least one sensor is mounted on the electronic control unit box. 32. The power assembly according to claim 30, wherein the at least one sensor is mounted on the battery holder. 33. The power assembly according to claim 30, wherein the down tube has a bottle-cage receiving area defined thereon and the electronic control unit box is configured for mounting in the bottle-cage receiving area. 34. The power assembly according to claim 30, wherein the at least one sensor is a magnetic activation sensor. 35. The power assembly according to claim 30, wherein the electronic control unit box is configured to complement a surface of the crank case for mounting thereon. 36. The power assembly according to claim 30, wherein the at least one sensor is a magnetic activation sensor operatively associated with a permanent magnet connected to the at least one crank arm and pedal assembly. 37. The power assembly according to claim 30, whe