Manufacturer : ABB
Product No. : 3BHE030579R0003 UNS0119 A-Z,V3
Product type : Control Unit
Power electronic input :
AC input voltage 3-phase (max., sinusoidal) : 0 to 250 VAC
DC input voltage (max.) : 0 to 300 VDC
Max. peak input voltage (not sinusoidal) : 420 VP
Voltage regulation :
Accuracy at 25 °C : 0.2 %
AVR response time (3-phase meas.) : <20 ms/<50 ms
AVR response time (1-phase meas.) : < 50 ms
PWM limitation : 0.5 to 99 %
Weight : 3.8 Kg
Shipping weight : 5 Kg

The ABB UNS0119A-Z (3BHE030579R0003) UNITROL 1020 is an advanced Automatic Voltage Regulator(AVR) designed for efficient and reliable operation in power generation systems. This control unit isengineered for synchronous generators, providing precise control and monitoring for various industrial andpower plant applications. The UNITROL 1020 ensures the stable operation of the generator's voltageregulation, enhancing system efficiency, protection, and performance.

Frequently asked questions：

Q1: What is the ABB 3BHE030579R0003 used for?
A: The 3BHE030579R0003 is used as a Control Unit for converting and conditioning DC and AC signals in ABB industrial systems.
Q2: What voltage and frequency ranges does it support?
A: It supports DC: 0–420 V, AC: 0–300 V, and frequency: 40–600 Hz.
Q3: What is the measurement accuracy of the 3BHE030579R0003?
A: The module has 1% accuracy at –40 to 70°C and 0.1% accuracy at 25°C.
Q4: What resolution does the module provide?
A: It provides 100 mA resolution after average filter and 245 mV RMS resolution.

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