Grameyer presents the most complete analog voltage regulator of the market. The voltage regulator GRT7-TH4 R4 presents several developments, among them stand out.

- Indicative LEDs;
- Sensing over voltage protection / over voltage field; *
- Lack sensing protection;
- Current Limiter off, 5, 7, 10A selectable,
- Switched Source operating with less voltage improving the generator field voltage building up on start-up;
- Improved voltage range regulation with PT's selectable: 100Vca to 500Vca selected by jumper;
- Two-speed of response to digital input;
- Two options for CT's reactive compensation 5 and 1Aca;

*optionals