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Oil-immersed self-cooled induction voltage regulator source manufacturer 6.35kV 13.2kV 14.4kV 22kV 33kV

  • Oil-immersed self-cooled induction voltage regulator source manufacturer 6.35kV 13.2kV 14.4kV 22kV 33kV

Key attributes

Brand ROCKWILL
Model NO. Oil-immersed self-cooled induction voltage regulator source manufacturer 6.35kV 13.2kV 14.4kV 22kV 33kV
Rated voltage 24kV
Rated frequency 50/60Hz
Series RVR

Description

Description

As a leading source factory in China’s voltage regulator industry, we deliver reliable voltage regulators with proven performance exceeding industry standards.
This 24kV single-phase pole-mounted 32-step automatic voltage regulator, a precision step voltage regulator, uses advanced on-load regulation technology. It captures grid fluctuations in real time, responds quickly, and automatically adjusts taps to stabilize voltage under varying load conditions.
Designed for simple pole mounting, this voltage regulator requires no complex foundations and runs fully automatically, reducing maintenance work and eliminating human errors.
This step voltage regulator provides stable 24kV single-phase output, suppressing deviations and flicker to ensure reliable power for distribution networks, urban-rural grids, and small commercial-industrial loads.

Product Features

Precision Voltage Regulation

  • 32-step adjustment (±10% range, ~0.625% per step) for smooth, accurate control.
  • Voltage regulator supports 2400V–34,500V single-phase systems, 50/60Hz.

Robust Construction

  • Oil-immersed auto-transformer design ensures durability and efficient cooling.
  • High-creep bushings and MOV arresters enhance insulation and surge protection for the voltage regulator.

Smart Control & Monitoring

  • RVR intelligent controller with GPRS/GSM/Bluetooth for remote monitoring and adjustment of the step voltage regulator.
  • Built-in CT/PT sensors provide real-time voltage and current sampling.

Key Advantages

  • High Reliability: Oil-immersed construction ensures the voltage regulator’s stability in harsh environments.
  • Wide Compatibility: This step voltage regulator supports 50/60Hz systems up to 34.5kV (200kV BIL).
  • Remote Control: Smart controller enables real-time adjustments of the voltage regulator via mobile or SCADA.
  • Enhanced Safety: Built-in fault and oil pressure monitoring protects the step voltage regulator from failures.
  • Low Maintenance: Modular design simplifies servicing of the voltage regulator.

Technical Specifications

Some of the voltage ratings include 50Hz 6kV-34.5kV. Customization is available.

Model NO.

RVR-1

Core

Core-type Transformer

Cooling Method

Oil-immersed Type Transformer

Winding Type

Auto-transformer

Certification

ISO9001-2000

Usage

Combined Transformer

Frequency Characteristics

Power Frequency

Shape of Core

U

Brand

Rockwill

Material

Oil, Copper

Color

Gray, Green or Customized

Delivery Time

30days

Transport Package

Wooden

Specification

IEC/ANSI/GB

Trademark

Rockwill

Origin

China

HS Code

8504220000

Production Capacity

1000

 

Voltage
(kV)

Load Current
(A)

kVA





2.5 kV 60 kV BIL

200
300
400
500
668
1000
1332
1665

50
75
100
125
167
250
333
416





5.0 kV 75 kV BIL

100
150
200
250
334
500
668
833

50
75
100
125
167
250
333
416






7.62 kV 95 kV BIL

100
150
219
328
438
546
656
875
1093

76
114
167
250
333
416
500
667
833




13.8 kV 95 kV BIL

100
150
200
300
400
483
604

138
207
276
414
552
667
833




19.92 kV 150 kV BIL

50
100
167
200
335
418
502

100
200
333
400
667
833
1000

Typical Applications

  • Utility Grids: The voltage regulator compensates for drops in rural or long-distance lines
  • Industrial Power: The step voltage regulator stabilizes voltage for factories with fluctuating loads
  • Renewable Energy: The voltage regulator smooths variations in solar/wind farm connections
  • Commercial/Municipal: The step voltage regulator ensures stable power for hospitals, data centers, and plants
  • Mining/Offshore: The voltage regulator handles high fluctuations in demanding environments

Reference Projects for voltage regulator

  • Successful Case of 263 Units of 33kV Oil-immersed 32-step Voltage Regulator Controller Project in Bangladesh
    Successful Case of 263 Units of 33kV Oil-immersed 32-step Voltage Regulator Controller Project in Bangladesh01 Overall Project Overview1.1 Project BackgroundIn June 2024, 263 units of 33kV oil-immersed 32-step voltage regulator controller were officially delivered and applied to the Bangladesh Medium Voltage Distribution Network Upgrade Project. R&D and manufactured by Rockwill, these devices are used for voltage stability regulation, load fluctuation adaptation and power supply quality impr

Documentation Resource Library voltage regulator

6kV to 34.5kV Single Phase Automatic Voltage Regulator Brochure
Restricted.
6kV to 34.5kV Single Phase Automatic Voltage Regulator Brochure
Catalogue
English
Consulting
Consulting

FAQ for voltage regulator

Q: Will this voltage regulator cause an impact on the power grid during voltage regulation?
A:

No. Adopting a design of step voltage regulation + induction regulation, it realizes smooth voltage switching. Combined with the buffering characteristics of oil-immersed insulation, it can avoid voltage surges that may impact the power grid and downstream equipment, making it suitable for scenarios requiring high power supply stability.

Q: What are the key points for the daily maintenance of the oil-immersed self-cooled induction voltage regulator (6kV~33kV)?
A:

It mainly requires regular inspection of the insulation oil level and quality (at least once a year), cleaning dust on the radiator surface to ensure heat dissipation efficiency, and monitoring the operation status of the tap changer. These maintenance measures can guarantee the long-term stable operation of the equipment, and professional power operation and maintenance personnel are recommended for the operations.

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