The relay protection tester is an indispensable piece of equipment in power system testing; its core functions are designed to comprehensively verify the operational characteristics and reliability of relay protection devices under various operating conditions. Its working principle can be summarized as “signal excitation – behavior detection. ” The tester has a built-in high-precision programmable power supply, capable of simulating various operating. Whether you need to test a specific component or test an entire scheme, the F6150e is the proven solution to assess protection system performance. Select from a number of protective relay tester models that feature varying power levels and complexity. Choose the best solution according to your. The microcomputer relay protection tester has maintenance functions such as incoming line maintenance, presentation maintenance, subsection maintenance, distribution transformer maintenance, motor maintenance, capacitor maintenance, main transformer backup maintenance, generator backup maintenance. TEST-630 protection relay tester is a relay test equipment which offers all the characteristics and functions needed for protective relay testing, in a manual or automatic mode, designed for using on site or in the laboratory.