Circutor RGU-10 MT, Instruction Manual

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RGU-10 MT
Instruction Manual
1.- VERIFICATIONS UPON RECEPTION
The following must be checked upon reception of the device:
a) The device has been supplied according to the specifications in your order.
b) The device has not been damaged during transport.
c) Perform an external visual inspection of the device before connecting it.
d) Check that it has been supplied with the following:
- An installation guide.
Immediately contact the carrier and/or CIRCUTOR’s after-sales service if you de-
tect any problem in the device upon reception.
2.- DESCRIPTION OF THE PRODUCT
The
RGU-10 MT
is a type A earth leakage protection device. It has 2 output relays: The main one, to
control the circuit breaker and provide earth leakage/overcurrent protection and the interlock function,
to indicate that the maximum number of reclosings has been reached.
Allows the setting and adjustment of all parameters required for complete protection and maintenance
checking in the installation.
The
RGU-10 MT
measures, calculates and displays the earth leakage current in three-phase, balanced
or unbalanced industrial systems.
Measurements are in true effective value, via one earth leakage current input, from the
WG/WGS
fam-
ilies external measuring toroid.
Under normal operating conditions the main values determining earth leakage protection in an instal-
lation are shown on the display. These include sensitivity, delay and instant current leakage.
Under normal operating conditions the backlit display is green. However, after any event causing a
main relay to trip, the backlight is red, indicating the reason.