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.

Industrial Ethernet Switches are important equipment in telecom networks of smart substations. In addition to data exchange and transmission, it gradually becomes inter-connective part of primary and secondary devices by replacing the traditional cables.  At the same time, it helps to transport the time information transport in the timing system of Smart Substation. Therefore, the performance of the industrial Ethernet switches would has impact on the timing accuracy of various devices and equipment in the intelligent substation, and also affects the normal operation of the equipment.

The secondary node clock in frequency synchronization network of power communication is a comprehensive timing supply system with Rubidium oscillator in buildings, also commonly called BITS. It is consisted of Rubidium oscillator and satellite receiver. It is different from LPR as the number of rubidium oscillators and satellite receivers does not reach double configurations at the same time. The secondary node clocks are mainly implemented in the communication rooms of municipal companies. 
We can provide synchronization performance test solutions for secondary clock equipment.