The test systems are our reference meters with integrated source. They are especially useful if you need user-defined values for current and voltage when testing meter installation, but don't want to deal with two devices.
The reference meters are our devices with accuracy classes 0.2 to 0.02. They are mainly used for the testing of meter installations. Also, inside are equipment that are used in testing of generator guards and protection units.
You can choose between current sources or current and voltage sources. When testing meter installations, sources provide user defined values for testing. For relay testing, the secondary injection equipment can be used to test all types of protective relays and power system protection schemes.
