Relay Test Set; Single Phase –
With voltage outputs going as high as 300V AC/ 400 V DC at continuous 150 VA, Doble F2253 is among the best single phase relay testers in the market.
It is a well-known testing device that does preventive maintenance. The test voltage can be adjusted from 300V AC/ 400V DC, and the maximum output is 90A AC or 60A DC. It has internal and external start/stop features along with a multi-mode timer control. It has many flexible options and it lets you change the phase angle and frequency of the test voltage for a given custom test configuration.
The front panel of the device is simple to understand, and thus can be handled by anyone. The Doble F2253 is a device that is used by most companies to check their electrical devices as it can be easily operated by new electrical engineers.