High Precision step voltage regulator 6kV 15kV 22kV 33kV

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Key attributes

Brand	ROCKWILL
Series	RVR
Rated Voltage	6kV-33kV
Rated Current	50-600A
Capacity	30-990kVA
Rated Frequency	50Hz

Description

As a pioneer and the first source factory in China's voltage regulator industry, we have been deeply rooted in the sector for decades, accumulating profound technical expertise. Leveraging top-tier R&D capabilities and a mature manufacturing system, our products have gained widespread market trust with reliability and performance that far exceed industry standards.

The RVR-1 single-phase step voltage regulator is an oil-immersed autotransformer with an integrated on-load tap changer, designed to automatically stabilize distribution line voltage. It offers ±10% regulation in 32 fine steps (approximately 0.625% each), ensuring consistent voltage across varying load conditions.

Voltage ratings range from 60 kV BIL to150 kV BIL with current capacities from 50A to 1665A and kVA ratings from 38.1 to 1000. The unit is compatible with both 50Hz and 60Hz systems and can be pole-mounted, pad-mounted, or installed in substations.

Product Features

Precise Step Voltage Regulation：This step voltage regulator features ±10% regulation range with 32 taps at 0.625% per step. It rapidly stabilizes grid voltage, compensates line drop, and meets industrial and commercial power quality needs.

Intelligent Digital Controller：Built with programmable digital controller for easy setup. It supports GPRS, GSM and Bluetooth remote monitoring, parameter tuning and fault diagnosis. Onboard data logging records operating data to simplify maintenance and system optimization.

Flexible Installation ConfigurationsDesigned for versatile deployment across power system scenarios:

Pole mounting: Compatible with standard utility poles via dedicated mounting brackets, ideal for overhead distribution lines (e.g., rural power grids, industrial park feeders);
Pad-mount installation: Equipped with a robust ground-mounted base for stable placement in outdoor open areas or near load centers;
Substation mounting: Optional elevating platforms available for integration into substation equipment layouts, adapting to indoor or outdoor substation environments.
All installation options comply with power industry safety standards, ensuring easy assembly and reliable operation in diverse conditions.

Technical Specifications

50Hz

Voltage (kV)	Current (A)	Capacity (kVA)	BIL (kV)	Power Frequency Withstand Voltage (kV)	Insulation Class
6/6.35	50	30/32	75/95	28	A
	100	60/64
	150	90/95
	200	120/127
	300	180/191
	400	240/254
	500	300/318
	600	360/381
11	50	55
	100	110
	150	165
	200	220
	300	330
	400	440
	500	550
	600	660
15	50	75	125/150	50
	100	150
	150	225
	200	300
	300	450
	400	600
	500	750
22	50	110
	100	220
	150	330
	200	440
	300	660
33	50	165	170/200	70
	100	330
	150	495
	200	660
	250	825
	300	990

Key Advantages

Certified Quality：ISO9001 & ISO14001 certified; each unit is fully type-tested before delivery
Robust & Reliable：Built for harsh environments with minimal maintenance requirements
Flexible Packaging Options：Export-grade seaworthy wooden boxes available in single or double-unit formats to reduce shipping cost
Professional Support：Fast pre-sales response, real-time production updates, and long-term after-sales service

Application Scenarios

Rural & Urban Distribution Networks：Compensates for voltage drops along long feeder lines
Industrial Zones：Ensures voltage stability for large machinery and sensitive equipment
Renewable Energy Integration：Maintains voltage stability in grids with wind or solar input
Substation Use：Enhances voltage control across secondary distribution systems

Documentation Resource Library voltage regulator

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6kV to 34.5kV Single Phase Automatic Voltage Regulator Brochure

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FAQ for voltage regulator

Q: How do IEEE standards impact the selection of 33kV step voltage regulators?

IEEE C57.15/C57.116 standards define critical requirements for 33kV regulators:

Testing Rigor: Mandates lightning impulse withstand (110kV) and temperature rise tests (55°C max)
Safety Protocols: Requires pressure relief devices and fault current withstand (25kA/2s)
Performance Metrics: Specifies ±0.5% voltage accuracy and 96% minimum efficiency at 50-100% load
Compliance Value: IEEE-certified models ensure grid compatibility and simplify utility approval processes
These standards directly correlate to 20% longer service life and 35% reduced maintenance costs in field deployments.

Q: What is the difference between continuous and step voltage regulation in step voltage regulators?

Step voltage regulators offer two distinct voltage correction methods:

Step Regulation: Adjusts voltage in fixed increments (typically ±10% range in 0.625-1.25% steps) using tap changers. Ideal for stable grids where precision adjustments are sufficient.
Continuous Regulation: Provides smooth, stepless correction through electronic power conversion. Perfect for volatile grids with frequent fluctuations (e.g., renewable integration zones).
All models (6kV-33kV) comply with IEEE C57.15 standards, with step versions featuring 32-position tap changers and continuous versions maintaining ±1% output accuracy under all load conditions.

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Whole-life care management services for equipment procurement, use, maintenance, and after-sales, ensuring safe operation of electrical equipment, continuous control, and worry-free electricity consumption.

The equipment supplier has passed platform qualification certification and technical evaluation, ensuring compliance, professionalism, and reliability from the source.