Voltage Detection Systems (VDS)

CAUTION
hazard of incorrect use Refer to the operating manual of the voltage detection system concerned. Failure to follow these instructions can result in injury or equipment damage.

Pluggable Voltage Detection System

CAUTION
hazard of incorrect use Always check all three phases L1, L2 and L3 together. Failure to follow these instructions can result in injury or equipment damage.

The operating voltage or the zero voltage state of the feeders is detected via a separate voltage detection system according to IEC 61243-5.

Socket-contacts for the indicator units are located on the panel front (Figure 73). Capacitive voltage indicators of all the approved manufacturers can be used (Figure 72).

NOTE: All three phases L1, L2 and L3 are always required to be checked together.

Close non-used socket-contacts using caps.


Figure 72 Voltage indicator (Type HR-ST, Horst-mann GmbH)	Figure 73 Socket-contacts for HR system on the panel front

Integrated Voltage Detection System IVIS

IVIS is an integrated voltage detection system with display unit used to determine zero voltage according to IEC 61243-5.

Figure 74
Integrated Voltage Detection System IVIS

The IVIS system has been designed for maximum operating reliability. It does not require supply from an external source. It features climateproof encapsulated electronics and is maintenance-free, due to permanent monitoring of the indication thresholds.

Flash arrow symbols on the indicators display the operating voltage still existing within the defined response thresholds. The IVIS system does not require the electrical repeat tests common for voltage detection systems.

For a description of all functions and messages of the IVIS system, please refer to the separate Operating Manual IVIS (No. AGS 531757-01).