MR TRAFOGUARD ISM, Operating Instructions Manual

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3 Product description
Maschinenfabrik Reinhausen GmbH 2016 19 5163667/00 EN TRAFOGUARD® ISM®
Performance features
Depending on your order, the device is equipped with the following optional
function packages:
▪
Basic monitoring
–
Voltage, current, frequency
– Active power, reactive power, apparent power, power factor
– Temperature monitoring (ambient temperature, temperature of top-
oil, temperature of bottom oil (optional), calculation of hot-spot tem-
perature in accordance with IEC 60076-7 or IEEE C57.91)
– Optional: Transformer oil level
– Loss-of-life and relative aging rate
– Status of the motor-drive unit (motor protective switch, motor is run-
ning)
– Tap position display
– Optional: Status of protective devices (Buchholz relay, protective re-
lay, pressure relief device)
▪ 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
– Status of the motor-drive unit (motor protective switch, motor is run-
ning)
▪ 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 run-
ning)
▪ 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
specification, desired value using BCD)
– Automatic voltage regulation with linear or integral delay time T1
and with delay time T2
– Parallel operation
– Line drop compensation
3.3