VAMP 221
Arc protection system
Technical description
VAMP Ltd
4
VAMP 24h Technical Support: +358 (0)20 753 3264
VM221.EN013
1.
Introduction
This User’s Manual contains a functional description of the
protection system, application examples and technical data.
Installation and user instructions can be found in the
Operation and configuration instructions.
1.1.
Purpose
The main purpose of the arc protection relay is to protect an
electrical installation against the destructive impact of an arc
short circuit, minimize physical damages and mitigate
potential injuries. The arc protection relay VAMP 221 was
originally designed for this purpose.
In addition, the VAMP 221 Arc Protection System has several
user-friendly features, such as four separate protection zones;
current measurement indication in the central unit; versatile,
partially programmable output relays; comprehensive self-
supervision of functions; and the ability to interconnect VAMP
protection relays and arc protection via the BI/O bus.
The VAMP 221 Arc Protection System can be easily installed
on both new and existing low and medium voltage switchgear.
1.2.
Main properties
VAMP 221 is a modular system consisting of a central unit, I/O
units, arc sensors and possible multiplying relays.
Due to its modularity, the system is suitable for a range of arc
protection applications, from simple systems with one central
unit and one I/O unit to more complex solutions comprising
several central units used for selective arc protection.
The central unit VAMP 221
The central unit VAMP 221
The central unit VAMP 221
The central unit VAMP 221 includes all arc protection system
functions, such as overcurrent and arc supervision.
The I/O unit VAM 10L
The I/O unit VAM 10L
The I/O unit VAM 10L
The I/O unit VAM 10L serves as link between the system’s
point sensors and the central unit. Each I/O unit has
connections for ten arc sensors, one portable pin sensor and one
trip output.