MR ETOS IM - Page 28

4 Product description
Maschinenfabrik Reinhausen GmbH 201928 5163667/06 ENETOS
®
IM
– Status of the motor-drive unit (motor protective switch, motor is running)
– Optional: Motor Current Index
▪ Automatic voltage regulation AVR basic
– Measurement of voltage and current
– 1 desired value
– Voltage regulation with linear delay time T1
– Status of the motor-drive unit (motor protective switch, motor is running)
▪ Automatic voltage regulation AVR pro
– Measurement of voltage and current
– Desired value in accordance with order (1, 3 or 5 desired values,
TDSC, analog desired value specification, gradual desired value speci-
fication, desired value using BCD)
– Automatic voltage regulation with linear or integral delay time T1 and
with delay time T2
– Parallel operation
– Line drop compensation
– Status of the motor-drive unit (motor protective switch, motor is running)
– Bandwidth monitoring
– Function monitoring
– Limit value monitoring (voltage, current, power, phase angle)
▪ Cooling system control
– 2, 4 or 6 cooling stages, can be individually parameterized
– Load-dependent mode (for early activation of cooling stages)
– Periodic mode (for regular activation of cooling stages)
– Alternating mode (for equal loading of similar cooling stages)
▪ Cooling stage monitoring (2, 4 or 6 cooling stages)
▪ DGA
– Up to 10 gases
– Relative moisture in oil
– Monitoring of the absolute values and rates of increase
– Optional: Rogers, Duval, Dörnenburg and IEC 60599 analyses
▪ MR sensor bus
▪ Calculation of the transformer overload capability (emergency operation)
▪ Bushing monitoring
– Monitoring of oil-impregnated paper bushings (OIP) and resin-impreg-
nated paper bushings (RIP) at voltage levels of U
m
= 123...420kV (with
voltage levels up to 765kV on request)
– Optional: Monitoring of 6 bushings, where 3 bushings each form one
set (field 1 and field 2)
– Online monitoring of the bushing by means of capacitance measure-
ment and dissipation factor measurement