Voltage Interface Module (VIM)
The Voltage Interface Module (VIM) measures and digitizes the three phase voltages supplied by the secondary windings of a conventional voltage transformer (VT). The digitized signals from the VIM contain all information of the original secondary voltages.
Measures from zero Volt
The Voltage Interface Module (VIM) is connected to the substation's conventional voltage transformers. It is connected with fiber optic cables to the SASensor's Central Control Unit (CCU).
The VIM consists of:
- Three voltage input terminal strips to obtain 3-phase measurements.
- Two ports of 100Base-FX Fast Ethernet with ST connectors for optical fiber with a strand for transmit.
- Profiling port to be used by the manufacturer to calibrate the module.
- Power supply capable for wide input AC and DC voltage range.
- Status LED.
The voltage inputs are widely protected against damaging due to e.g. overvoltages and lightnings.