MR ETOS ED User Manual

4 Product description
Maschinenfabrik Reinhausen GmbH 2020 276385142/08 EN ETOS
®
ED
– Motor-drive unit status (motor protective switch, motor is running)
– Tap position display
– Optional: Status of protective devices (Buchholz relay, protective relay,
pressure relief device)
▪ ETOS® ED digital ready
– Maintenance interval calculation
– Tap-change statistics of on-load tap-changer
– Motor-drive unit status (motor protective switch, motor is running)
▪ On-load tap-changer monitoring
– Contact wear calculation (only for OILTAP® V, M, R, RM, MS, G)
– Maintenance interval calculation
– Oil carbonization (only for OILTAP® V, M, R)
– Monitoring of OLTC temperature (optional)
– Tap-change statistics of on-load tap-changer
– Optional: on-load tap-changer oil level
– Optional: oil filter unit
– Motor-drive unit status (motor protective switch, motor is running)
– Optional: Motor Current Index
▪ On-load tap-changer monitoring expert
– Torque monitoring
– Tap-change sequence monitoring
– Temperature monitoring (motor-drive unit, surroundings, OLTC, tem-
perature difference between OLTC and transformer)
– Hand crank monitoring
▪ Automatic voltage regulation AVR basic
– Measurement of voltage and current
– 1 desired value
– Voltage regulation with linear delay time T1
– Motor-drive unit status (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, incremental desired value
specification, desired value via BCD)
– Automatic voltage regulation with linear or integral delay time T1 and
with delay time T2
– Parallel operation
– Line drop compensation
– Motor-drive unit status (motor protective switch, motor is running)
– Bandwidth monitoring

MR ETOS ED Specifications

General

Brand	MR
Model	ETOS ED
Category	DC Drives
Language	English