Voltage Detecting & Indicating System : VDIS-G

FEATURES
  • Relay gets energised either from Current, Aux. voltage, front USB or internal battery (whichever is available)
  • VDIS is a voltage presence indicating system conform to IEC62271-213:2021 standard
  • Optical blinking led for voltage indication & Output terminals for LRM block
  • Nominal frequency: 50 / 60 Hz
  • Suitable for front panel mounting
  • Suitable for Indoor & Outdoor applications
  • Suitable for various voltage ranges: 3.3 – 24 kV
  • Bushing capacitance range: 15 – 66 pF based on model/customer requirement
  • Internal gas tube arresters as required by the standard for SURGE protection
  • Indication Appear: When the voltage is in the range of 45% to 120% of the nominal voltage
  • Indication doesn’t appear: When the voltage is less than 10% of the nominal voltage
  • SCADA compatibility, for SCADA signalling, NO/NC contact available for RTU.

The VDIS is a voltage presence indicating system, in compliance with the IEC 62271-213:2021 standard, which is used in RMU/MV Network. This is basically a tool that verifies the absence or presence of voltage in the network & helps to suggest when there is a need for maintenance & repairs. This device is an essential piece of equipment for most modern networks. Indication of the voltage is displayed by high-brightness LEDs. It gets fit with the bushing capacitance as input to measure the incoming voltage.

The C&S VDIS-G (Voltage Detecting & Indicating System) relays offer key benefits focused on enhanced safety, operational efficiency, and system longevity in medium-voltage electrical systems.

  • Provides a reliable and clear indication of the presence or absence of operating voltage, which helps prevent electric shocks or electrocution during maintenance or operation.
  • The system is designed to meet stringent safety regulations and standards, such as IEC 62271-213, ensuring regulatory compliance and safe operation.
  • The voltage detection and indication functions typically do not require an external power supply or internal battery, resulting in a maintenance-free device.
  • Built-in test points are available to verify the functionality and accuracy of the system and its display without needing auxiliary power, simplifying testing procedures.