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5. Introduction
This User’s Manual contains a functional description of the protection system, application ex-
amples and technical data.
Installation and user instructions can be found in the Operation and confi guration instructions.
5.1. 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 ARCON 2.0 was originally designed for this purpose.
In addition, the ARCON 2.0 Arc Protection System has several user-friendly features, such
as four separate protection zones; current measurement indication in the master unit; versa-
tile, partially programmable output relays; comprehensive self-supervision of functions; and
the ability to interconnect our ARCON arc quenching device ARC-AT via special connection
cables.
The ARCON 2.0 Arc Protection System can be easily installed on both new and existing low
voltage switchgear.
5.2. Main
properties
ARCON 2.0 is a modular system consisting of a master unit, I/O units, arc sensors and pos-
sible arc quenching device.
Due to its modularity, the system is suitable for a range of arc protection applications, from
simple systems with one master unit and one I/O unit to more complex solutions comprising
several master units used for selective arc protection.
The master unit ARC-EM/2.0
includes all arc protection system functions, such as overcur-
rent and arc supervision.
The I/O unit ARC-EP10/2.0, ARC-EP10-2/2.0
serves as link between the system’s point sen-
sors and the master unit. Each I/O unit has connections for ten arc sensors, one portable pin
sensor and one trip output.
The I/O unit ARC-EL3/2.0
serves as link between the system’s fi bre sensors and the master
unit. Each I/O unit has connections for three arc sensors, one pin sensor and one trip output.
The I/O unit ARC-EC1/2.0
serves as link between the system’s current inputs and the ma-
ster unit. Each I/O unit has connections for three current transformers and one trip output.
The arc sensor ARC-SP
is activated by strong light. The sensor transforms the light informa-
tion into the current signal, which is forwarded through the I/O unit to the master unit. The arc
sensor also operates on the same principle.
The pin sensor ARC-SM
has the same functions as an arc sensor but can be temporarily
connected to an I/O unit. The sensor can be fi xed to the breast pocket of a technician to im-
prove safety when working with live switchgear.
Summary of Contents for ARCON 2.0 Series
Page 51: ...51 7 6 Block diagram 7 6 1 ARC EM 2 0 Figure Connections of ARC EM 2 0...
Page 54: ...54 7 6 4 ARC EL3 2 0 7 6 5 ARC EC1 2 0...
Page 64: ...64 9 Construction 9 1 Dimensional drawings 9 1 1 ARC EM 2 0 panel and semi flush mounting...
Page 65: ...65 9 1 2 ARC EP10 2 2 0 din rail mounting...
Page 66: ...9 1 3 ARC EP10 2 0 din rail mounting 66...
Page 67: ...67 9 1 4 ARC EL3 2 0 din rail mounting...
Page 68: ...68 9 1 5 ARC EC1 2 0 din rail mounting...
Page 69: ...69 9 1 6 Fiber sensor mounting r min 50 mm...
Page 70: ...70 9 1 7 Point sensor mounting...
Page 82: ...82 10 Application examples 10 1 Applications 10 1 1 With a main busbar system...
Page 83: ...83 10 1 2 With two main busbar systems...
Page 84: ...84 10 1 3 With two main busbar systems and additional zone selection 4 zones...
Page 85: ...85...
