VDIS

DANGER
HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH You must use the VDIS unit to detect and indicate the presence or absence of operating voltage. You must not use the VDIS unit to distinguish between voltage not present (i.e. U < 10% of nominal voltage) and dead circuit state (i.e. U = 0 V). Failure to follow these instructions will result in death or serious injury.

The VDIS unit is a self-powered device.

The VDIS unit is integrated into MCSeT cubicles, flush-mountable and designed according to standard IEC 62271-213. The VDIS unit is fitted with a three LED display and detects the operating voltage presence or absence on the cubicle main circuit.

NOTE: VDIS is not intended to distinguish between voltage not present (that is U < 10% of nominal voltage) and dead circuit state (that is U = 0 V). The VDIS receives the information through the capacitive sensor installed inside the insulator.

The range of VDIS consists of two versions:

No voltage output (VO): Voltage presence detection and interface to phase concordance units.
VO FlairDIN: Voltage presence detection, interface to phase concordance units and VO connection to fault passage indicators.

The VDIS unit has three main functions:

Visual indication of MV operating voltage presence or absence,
Phase concordance output,
VO (VDIS-VO only).