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32 step fully automated maintenance-free voltage regulator 11kV 15kV 22kV 33kV

  •  32 step fully automated maintenance-free voltage regulator 11kV 15kV 22kV 33kV

Key attributes

Brand ROCKWILL
Model NO. 32 step fully automated maintenance-free voltage regulator 11kV 15kV 22kV 33kV
Rated voltage 11kV
Rated frequency 50/60Hz
Rated capacity 220kVA
Series VR

Description

Product Introduction

As a pioneer and original manufacturer in China’s voltage regulator industry, we have been deeply engaged in this field for decades with profound technical accumulation. Backed by strong R&D capability and mature manufacturing workflow, our voltage regulator solutions are widely trusted globally for stable quality and superior performance that surpass ordinary industry standards.
The 32-Step Voltage Regulator is a fully automated, maintenance-free step voltage regulator specially designed for distribution line scenarios. This voltage regulator is developed to optimize voltage quality in 10kV to 35kV distribution networks. It adopts microprocessor real-time monitoring of load-side voltage, enabling the step voltage regulator to automatically adjust voltage gears and keep line voltage steadily within the standard target range.

Core Features

  • 32-Level Precision Regulation:The step voltage regulator realizes accurate on-load automatic voltage adjustment. Each step delivers a fine voltage tuning of 0.625%, with an overall regulation range of ±10%, ensuring the voltage regulator maintains precise output under complex grid conditions.
  • Arc-Free Tap Design:With a specialized voltage regulating tap structure, the step voltage regulator avoids arcing during regulation, effectively extending the mechanical service life of the voltage regulator to nearly 1 million operation cycles.
  • Fully Sealed & Maintenance-Free:Featuring IP-rated fully sealed construction, the step voltage regulator offers outstanding weather and corrosion resistance, supporting long-term maintenance-free operation for both indoor and outdoor installation.
  • Flexible Operation & Integration:Voltage regulation mode can be switched on or off according to actual demand. The step voltage regulator supports seamless connection with SCADA systems, perfectly fitting intelligent upgrading of modern power distribution networks.
  • Energy-Efficient Single-Phase Design:The single-phase structure of the voltage regulator greatly reduces core loss and no-load loss, improving energy utilization and supporting low-carbon grid operation.
  • Enhanced Grid Performance:This step voltage regulator effectively lowers line loss, smooths voltage fluctuations, and protects the service life of end-user electrical equipment.

Specifications and Selection

We offer a wide range of voltage ratings for global applications 6kV- 34.5kV Custom voltage ratings are also available upon request.

Rated voltage

Rated frequency

Current ratingA

Rated capacitykVA

Withstand lightning impulse voltage

11kV

50Hz

50

55

95kV

100

110

150

165

200

220

300

330

400

440

500

550

600

660

22kV

50

110

150kV

100

220

150

330

200

440

300

660

400

880

454

999

33kV

50

165

200kV

100

330

150

495

200

660

250

825

50

175

100

350

150

525

200

700

 

Rated Voltage (kV)

Rated Load Current (A)

Rated Capacity (kVA)

Drawing No.

A (mm)

B (mm)

C (mm)

D (mm)

E (mm)

Insulating Oil (L)

Equipment Weight (kg)

Total Weight (kg)

11.0
95kV
BIL

50

55

1

1994

1817

694

890

508

208

389

661

100

110

1

1993

1818

864

1194

559

275

432

816

150

165

1

2043

1869

1193

1161

610

370

560

1080

200

220

2

2073

1920

1003

1320

635

360

649

1211

300

330

3

2370

2208

998

1633

711

674

1007

1964

400

440

3

2624

2462

1081

1784

838

1060

1059

2545

500

550

3

2759

2608

1194

1784

972

1328

1306

3339

22.0
150kV
BIL

50

110

1

2093

1920

927

1270

635

371

455

945

100

220

2

2174

2031

1005

1405

711

550

783

1494

150

330

3

2326

2183

1075

1467

737

659

1005

1873

200

440

3

2396

2234

1036

1704

762

765

1223

2242

300

660

3

2675

2414

1330

1848

889

1213

1566

3086

33.0
200kV
BIL

50

165

3

2895

2754

799

1294

762

757

1080

1957

100

330

3

3100

2947

1003

1585

965

1480

1638

3249

150

495

3

3142

2981

1285

1839

965

1567

1765

3616

200

660

3

3264

3086

1166

1921

965

1648

1835

3915

Main Application Scenarios

  • Urban and rural distribution lines:The step voltage regulator stabilizes voltage and solves low voltage and drift issues in long-distance power supply.
  • New energy grid connection:The voltage regulator balances voltage fluctuations for photovoltaic and wind power stations.
  • Industrial & mining power supply:The step voltage regulator guarantees stable power for heavy-load equipment against voltage surges and drops.
  • Rural grid renovation:The voltage regulator adapts to decentralized loads and improves overall power supply quality.
  • Substation supporting:The step voltage regulator optimizes system voltage as terminal regulation equipment.
  • Remote mountainous & island power supply:The voltage regulator suits harsh environments for unattended steady voltage regulation.

11kV 15kV 22kV 33kV Fully automated, maintenance-free 32 step voltage regulator for distribution lines

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

33 kV On Load Automatic Voltage Regulator Technology Specofocation
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33 kV On Load Automatic Voltage Regulator Technology Specofocation
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