Bender EDS460 - Accessing the Main Menu; Menu Overview Diagram; Main Menu Functions Explained

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TGH1394en/05.2007
3. System description
3.1 Features
3.1.1 Areas of application
 Insulation fault location in AC, AC / DC and DC IT systems
 Main and control circuits in industrial installations and ships
 Diode-decoupled DC IT systems in power stations
 Systems for medical locations
3.1.2 Standards
The standard IEC 60364-4-41:1992 requires for unearthed power supply sys-
tems (IT systems) that a first fault is to be eliminated with the shortest prac-
ticable delay. Fast insulation fault location is possible with EDS systems
.
3.1.3 System versions
EDS460, EDS461, EDS490 or EDS491 differ in their response sensitivity
and/or number of alarm relays.
3.1.4 System features
 Universal system concept;
 Modular design, hence easily adaptable to the individual conditions of
the system;
 Measuring current transformers in various sizes and types of construc-
tion;
 Communication between the components via BMS bus (two-wire);
 All measuring current transformers are scanned simultaneously;
 Central indication of faulty subcircuits;
 Various setting options allow individual adjustments;
 Connection to higher level control and visualization systems can easily
be established.