China Step Voltage Regulator VR-8: 2.5-34.5kV, Indoor/Outdoor Use, Top Suppliers & Factory Warranty
Farady Electric VR-8 single phase step voltage regulators are tap-changing autotransformers. They regulate distribution line voltages from 10% raise (boost) to 10% lower (buck) in thirty-two steps of approximately 5/8% each. Voltage ratings are available from 2400 volts (60 kV BIL) to 34,500 volts (200 kV BIL) for 60 Hz and 50 Hz systems. Internal potential winding taps and an external ratio correction transformer are provided on all ratings so that each regulator may be applied to more than one system voltage. Smaller kVA sizes are supplied with support lugs for pole mounting and with substation or platform tie down provisions. Larger sizes are provided with substation bases with pad-mounting provisions.
Product Standards
IEEE Std C57.15™ Part 21: Standard requirements, terminology, and test code for step-voltage regulators
IEC 60076-21 2018 version Part 21
IEEE C57.12.00-2015™ General Requirements for Liquid-Immersed Distribution, Power, and Regulating Transformers
IEEE C57.12.90-2015 IEEE Standard Test Code for Liquid-Immersed Distribution, Power, and Regulating Transformers
Operating taps comply to IEEE requirements
Main Features
Regulator Controller
Tap changer with motor and power supply
Position indicator with ADD-AMP adjustment
Two laser-etched nameplates
Lifting lugs & Oil drain valve
Oil sight gauge & filter press connection
High-creep bushings with NEMA connectors
Pole-type mounting or Substation base
External series arrester & Pressure relief device
Control cabinet with removable front panel
Ratio correction transformer
Shunt & Series arresters
Product Design
Regulator Controller (SEL-2431)
VR-8 series step voltage regulator use Schweitzer Engineering Laboratories, Inc (SEL) universal controller box model number SEL-2431 Following standard IEEE C37.118.
◆ Built-In Reliability, Ten-Year Warranty ◆ Plug-In Voltage Regulator Compatibility ◆ Advanced Tap-Position Tracking ◆ Easy Application Settings & Quick Data Retrieval
Technical Specs:
Operating temperature: -40°C to +85°C | Power source: 88-132 VAC | Auxiliary output: 11-14VDC (6W) | Nominal current: 450mA | Frequency: 50-60Hz (±5Hz) | Phase angle: -180 to 180 degree.
◆ Built-In Reliability, Ten-Year Warranty ◆ Plug-In Voltage Regulator Compatibility ◆ Advanced Tap-Position Tracking ◆ Easy Application Settings & Quick Data Retrieval
Technical Specs:
Operating temperature: -40°C to +85°C | Power source: 88-132 VAC | Auxiliary output: 11-14VDC (6W) | Nominal current: 450mA | Frequency: 50-60Hz (±5Hz) | Phase angle: -180 to 180 degree.
FARADY Voltlogic-230
FARADY Voltlogic-230 Digital Regulator Control is a microprocessor-based step-voltage regulator load tap changer control designed and manufactured by FARADY.
◆ Comply to IEC60255-1 and IEEE C37.118 ◆ Simple, intuitive controls for voltage regulators and LTC transformers ◆ Flexible communication (MODBUS, IEC101/104, DNP3.0) for SCADA/DMS integration ◆ Low cost of ownership with industry-leading technical support
◆ Comply to IEC60255-1 and IEEE C37.118 ◆ Simple, intuitive controls for voltage regulators and LTC transformers ◆ Flexible communication (MODBUS, IEC101/104, DNP3.0) for SCADA/DMS integration ◆ Low cost of ownership with industry-leading technical support
Quality Assurance & Testing
Farady Quality assurance is an integral part of the process. All electrical testing is per IEEE & ANSI standards. Regular quality inspections and spot checking are conducted to ensure consistent quality.
Routine Tests:
- In-process Core Loss Test
- Operation & Winding Resistance Test
- Polarity and Phase Displacement Test
- Insulation Power Factor & Oil DBV Test
- No Load Loss & Excitation Test
- Impedance Voltage & Load Loss Test
- Voltage Ratio & Applied Potential Test
- Induced Potential Test
Type Tests:
- Temperature Rise Test
- Lighting Impulse Level (BIL)
- Sound Level test
- Short circuit test
Frequently Asked Questions
What is the voltage regulation range of the VR-8 regulator?
The VR-8 regulates distribution line voltages from 10% raise (boost) to 10% lower (buck) using thirty-two steps of approximately 5/8% each.
What system voltages can the VR-8 support?
Voltage ratings range from 2400 volts (60 kV BIL) up to 34,500 volts (200 kV BIL), compatible with both 50 Hz and 60 Hz systems.
Which digital controllers are used with Farady voltage regulators?
Farady uses the Schweitzer Engineering Laboratories (SEL-2431) universal controller and the FARADY Voltlogic-230 Digital Regulator Control.
Can these regulators be integrated into SCADA systems?
Yes, the Voltlogic-230 controller supports flexible communication protocols including MODBUS, IEC101/104, and DNP3.0 for remote monitoring and SCADA/DMS integration.
What mounting options are available for different regulator sizes?
Smaller kVA sizes include support lugs for pole mounting, while larger units are provided with substation bases for pad-mounting.
What standards do Farady regulators comply with?
They comply with major international standards including IEEE Std C57.15, IEC 60076-21, and IEEE C57.12.00.