九色国产欧美日韩久久_日韩欧美亚洲中文字幕无色码_免费在线观看日本_99伊人re这里只有精品6_大象2023最新地域网名_国产中文字幕一区二区_日本美女视频久久_蜜芽tv在线视频国产在线_自拍偷拍先锋影音_亚洲另类激情综合偷自拍

Meet the demands of different industries

Apply in scenarios of authentication, network devices, operators, power system

Frequency Measurements on Merge Unit (MU)

Overview

The Merging Unit provides a set of current and voltage samples of time synchronization for the intelligent electronic devices. The main function is to get the current and voltage instantaneous values in the power system by collecting or merging the output signals of multiple transformers, and then transport with certain data quality to the electrical measurement and relay equipment. As MU plays a key role in the data acquisition, merging and conversion before the secondary equipment of the power system, it is significantly important to perform synchronization measurements on the merging unit.


The merging units are mainly synchronized based on the full stations synchronization technology with 1PPS (second pulse) or IRIG-B as reference. It requires establishing independent optical networks with 1PPS (second pulse) or IRIG-B interfaces, which of course increases the cost and lowers the operation liability of system as well. Therefore, it becomes a trend to synchronize all stations with IEEE1588 technology. 


Our instrument can measure the MU time error and time-keeping error, and also transmit abnormal time signals to MU for validation.

Test Diagram


Fig 1 Timing Error Measurement on MU



Fig 2 Time-keeping Error Measurement on MU



Fig 3 Abnormal Timing Measurement on MU