ABB 2769522-C, Installation And Maintenance Manual

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10
Installation and maintenance guide
1ZSC000563-ACD EN, REV. A, 2019-06-25
Limitation of the connected circuit
Maximum allowed voltage, U
2
: At service voltage: 110 V
At lightning impulse: 200 V
Maximum inductive and/or resistive loads, Z: ωL = 100 mΩ
R = 100 mΩ
Unit Definition
C
1
Capacitance 1 in condenser core, [F]
Refer to the test report for the bushing.
C
2
Capacitance 2 in condenser core, [F]
Refer to the test report for the bushing when it was
installed on the transformer.
U
2
Tap voltage, [V]
U
2max
The maximum service voltage, [V]
U
1
Voltage between outer terminal and earth, [V]
R Resistance, [Ω]
Z Impedance, [Ω]
ω Angular velocity for AC voltage [rad/s]
L Inductance, [H]
ωL Inductive reactance, [Ω]
Z Inductive and/or resistive loads, [Ω]