PRODUCT INFORMATION
Product Overview
The ABB UNITROL 1020-0007 3BHE030579R0007 is an Automatic Voltage Regulator within the UNITROL series. This unit comes in the FULL+PSS configuration for synchronous generator excitation control. The device regulates excitation using pulse-width modulation between 0.5 percent and 99 percent. At 25 degrees Celsius, it delivers an AVR regulation accuracy of 0.1 percent.
The unit delivers a continuous excitation current of 20 ADC at 40 degrees Celsius. At 55 degrees Celsius, continuous rated current is 15 ADC. It accommodates a 10-second overload excitation current of 40 ADC at 55 degrees Celsius. The operating ambient temperature spans from -40 degrees Celsius to +70 degrees Celsius.
TECHNICAL DATA
Technical Specifications
| Parameter | Specification |
|---|
| Order code | 3BHE030579R0007 |
|---|
| Model configuration | UNITROL 1020-0007 FULL + PSS |
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| Power-electronics input, three-phase AC | 0–300 VAC maximum sinusoidal |
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| Power-electronics DC input | 0–300 VDC maximum |
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| Power-electronics peak input | 420 V peak maximum |
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| AVR regulation accuracy at 25 °C | 0.1% |
|---|
| Three-phase measurement response | Less than 20 ms |
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| Single-phase measurement response | Less than 50 ms |
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| PWM limit | 0.5–99% |
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| Continuous excitation current at 40 °C | 20 ADC |
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| Continuous excitation current at 55 °C | 15 ADC |
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| Ten-second overload current at 55 °C | 40 ADC |
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| Auxiliary three-phase AC supply | 9–300 VAC maximum sinusoidal |
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| Auxiliary single-phase AC supply | 16–300 VAC maximum sinusoidal |
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| Auxiliary DC supply | 18–300 VDC maximum |
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| Ethernet interface | 10/100 Mbit/s; cable under 100 m |
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| Analog I/O | 3 configurable inputs and 2 configurable outputs |
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| Digital I/O | 4 configurable inputs and 8 configurable input/output points |
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| Permitted ambient temperature | -40 to +70 °C |
|---|
TECHNICAL INFORMATION
Features
- Full excitation control functionality including integrated Power System Stabilizer (PSS).
- AVR regulation accuracy of 0.1 percent evaluated at 25 degrees Celsius.
- Fast measurement response under 20 milliseconds for three-phase sensing.
- Single-phase measurement response completed in less than 50 milliseconds.
- Dual continuous current ratings of 20 ADC at 40 °C and 15 ADC at 55 °C.
- Peak overload capability delivering 40 ADC for 10 seconds at 55 °C.
- Pulse-width modulation operating limits spanning from 0.5 percent to 99 percent.
TECHNICAL INFORMATION
Connections / Interfaces
- One 10/100 Mbit/s Ethernet communication port supporting network cable runs under 100 meters.
- Three configurable analog inputs and two configurable analog outputs.
- Four configurable digital inputs for discrete status monitoring.
- Eight configurable bidirectional digital input and output connection points.
- Power-electronics AC input accepting three-phase sinusoidal supplies up to 300 VAC.
- Power-electronics DC input supporting supply voltages up to 300 VDC.
- Auxiliary supply terminals supporting 9–300 VAC three-phase, 16–300 VAC single-phase, or 18–300 VDC.
TECHNICAL INFORMATION
Installation Guidelines
- Install the unit in environments maintaining ambient temperatures between -40 and +70 degrees Celsius.
- Verify Ethernet cable lengths do not exceed the 100-meter physical boundary limit.
- Ensure power-electronics peak input voltage does not exceed 420 V peak.
- Derate excitation current from 20 ADC to 15 ADC when ambient temperature exceeds 40 °C.
TECHNICAL INFORMATION
Configuration Guidelines
- Configure the integrated FULL+PSS parameter sets to match machine stabilization dynamics.
- Assign functions across the three analog inputs and two analog outputs.
- Map discrete logic signals across the four dedicated digital inputs.
- Program the eight configurable digital I/O channels according to plant trip and control interlocks.
PART VERIFICATION
Before You Order
Industrial automation parts can share similar model names, suffixes and revisions. Confirm the complete manufacturer Part Number before purchase.
01Check Part NumberMatch the complete ordering code on the existing unit.
02Confirm RevisionCheck suffix, hardware or firmware when applicable.
03Send a Label PhotoWe can review a clear label photo when identification is uncertain.
ORDERING PROCESS
From RFQ to Dispatch
1Submit Part Number2Verify Product Identity3Confirm Stock & Condition4Issue Quotation5Dispatch & Tracking
PRODUCT FAQ
Frequently Asked Questions
What is the primary function of the ABB UNITROL 1020-0007 3BHE030579R0007?
It is an automatic voltage regulator designed for synchronous machines. This specific variant includes FULL software functionality and an integrated Power System Stabilizer.
What are the continuous and overload current ratings for this regulator?
The regulator delivers 20 ADC continuous current at 40 °C and 15 ADC at 55 °C. It supports 40 ADC overload for 10 seconds at 55 °C.
What input power supplies are compatible with the 3BHE030579R0007?
Power-electronics inputs accept up to 300 VAC three-phase or 300 VDC, with 420 V peak maximum. Auxiliary inputs accept 9–300 VAC three-phase, 16–300 VAC single-phase, or 18–300 VDC.
How fast does the unit respond to voltage measurement changes?
Three-phase measurement response is under 20 milliseconds. Single-phase measurement response takes less than 50 milliseconds.
