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12 Special motor-drive unit models
Maschinenfabrik Reinhausen GmbH 2020
56
1800138/08 EN
TAPMOTION
®
ED
Special motor-drive unit models
The standard design of the motor-drive unit can be modified to accommo-
date specific operating requirements.
Feature
Special equipment in motor-drive unit
VACUTAP® VT
Recovery time delay (60 s)
On-load tap-changer with change-over
selector for star-delta change-over oper-
ation
Star-delta monitoring
Furnace and electrolysis operation
Additional input terminals for "operation
without step-by-step switch"
Thermostat for on-load tap-changers
Temperature monitoring with break con-
tact for the control circuit
Higher maximum number of operating
positions
Control gear + on-load tap-change posi-
tion indicator for 70 operating positions
Control gear + on-load tap-change posi-
tion indicator for 105 operating positions
Special on-load tap-changer arrange-
ment: ABC arrangement
Control gear for ABC arrangement
Ambient temperature:
-40 to -25°C
Externally located control elements
Main switch for disconnecting all circuits
except the heating circuit
Thermostatically controlled additional
heater
Temperature monitoring depending on
oil used
Ambient temperature:
-60 to -40°C
▪ For up to 1000 tap-change operations
▪ For type ED 100
Externally located control elements
Main switch for disconnecting all circuits
except the heating circuit
Thermostatically controlled additional
heater
Temperature monitoring depending on
oil used
Additional heating for transmission gear
Ambient temperature:
+50 to +60°C
Modified heater control system
Sunroof
Additional special options available upon
request
Delay of the on-load tap-change opera-
tion (switching delay function)
Delay of the on-load tap-change opera-
tion for switching on the transformer
Table 12: Special designs
12