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Description
Product details：
UN 0810A-P Var.2
Model Type: HIER 448740 R2
Unitrol UN0810A-P module
Manufacturer ABB
Model ABB UNITROL
Estimated shipping size
Size: 6.0″ x 2.0″ x 8.0″
(15.2 cm x 5.1 cm x 20.3 cm)
Weight: 0 lbs 7.1oz (0.2kg)
UNS0874A
UN 0810A-P Var.2 Voltage regulation
The self-regulating excitation system can be regarded as a negative feedback control system with voltage as the regulated quantity. Reactive load current is the main cause of generator terminal voltage drop, when the excitation current is constant, the generator terminal voltage will decrease with the increase of reactive current. However, in order to meet the requirements of users on power quality, the terminal voltage of the generator should be kept basically unchanged. The way to achieve this requirement is to adjust the excitation current of the generator with the change of reactive current.
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