Find out the power quality problem caused by the strong wind

Some of the fault is intermittent, especially hard to find.Because you don't know when the failure will happen again, so you need to record data and waveform for a period of time.And tracking of intermittent fault, it must be associated with the events triggered the fault.You may also need data remote transmission.So, measuring instruments must be multi-functional and intelligent, haveWiFiConnectivity, and need to be able to read two external sensor signal.

Aerial and ground wire cable

One of our customers are public energy institutions, have a lot of overhead lines and buried cable.Like most of the energy company, they need to know the power quality of overhead lines.In addition to any other in the network fault happens, the overhead lines for all weather phenomena are very sensitive.
Strong winds can cause cable "swinging", and touch each other.This will cause the voltage sag and short supply interruption.Wires run into trees, sometimes leading to flashover, and even fire.Cable tower may be blown down, broken branches may damage the cable, or frozen rain will seep into the joint.
The company's end users complain that flicker and the voltage fluctuation, and measured the overhead power line maintenance department on power quality parameters.It is vital to measure, because these parameters can provide the most important upper fault information.

Excessive flicker and the voltage sag

Measuring data confirm, flicker and the voltage sag than EN50160 limit, but the reason it is not clear.One possibility is that the wind caused the branches touch wires or shaking loose the poor quality of the connector.Your first response is probably send someone to check, but in this way a long testing is expensive.And need to test in the windy day, because the branches (for example) if touching the wire, not only depends on the spacing, and a rigid or flexible have a relationship with the tree.

Our雷竞技app Fluke 1748 three-phase power quality recorder can access anemometer wind speed signal and monitoring.Is very impo雷竞技apprtant for energy companies, Fluke 1748 completely accords with the third edition IEC61000-4-30 the requirements of grade a standard.Recorder can capture voltage, current, power, power, frequency and power factor.Instrument can rapid assessment according to EN 50160 and IEEE 519 standard power quality.The security level of the equipment of 600 V / 1000 V CAT III, IV CAT is suitable for the user to introduce line, substation and distribution side.Instrument can store more than 20 independent record task, can quickly create report, to confirm the phenomenon found.

Sent via wi-fi

Will a Kriwan INT10 BA^®Anemometer is fixed to the top of the 230 v telephone poles, the measured signal power supply, to ensure that the instrument power supply uninterrupted during long-term track record.

雷竞技appFluke 1748 with 174 x AUX attachments, two road input, support all the way to + 10 V DC, the other all the way to + 1000 V DC.AUX input by software free scaling, can be two road input signal and the change of the PQ parameters associated with each other.The function is important for the application, also is the unique feature of 1748.The first input connected to the anemometer, anemometer to 0 to 60 m/s wind speed is converted into a linear output signal of 0 to 10 V;The first two monitoring overhead line voltage.

Energy雷竞技app companies use Fluke 1748 FEA analysis software remote set up and download the test data from the instrument (greater than 10 m distance) to the notebook computer, download without interruption in the process of data records.After a month of measurement, the voltage fluctuation associated with wind speed.Results confirmed that the fault is the root cause of the wire, and quickly found the problem on the wear of the connector.

ROI analysis

Return time is probably the most important measure instrument for customer value index.But in such cases, it is hard to assess: how do you evaluate the client's favor and their experience of service?Not to mention the rapid maintenance team to solve the fault of job satisfaction and reputation.