What information is required for ordering?

Required details include model, rated capacity, rated voltage, regulation range, connection group, tap positions, transformer oil grade, GPRS module, and special environmental conditions.

What are the standard lead times?

Peak season lead time is one month, while off-season lead time is within 15 workdays.

Does the product support customization?

Yes, full customization, minor customization, and customization from samples or designs are available through OEM and ODM services.

on-Load Tap Transformer with Enhanced Voltage Regulation Features

Name: on-Load Tap Transformer with Enhanced Voltage Regulation Features
Brand: Zhejiang Tianrun Electric Co., Ltd.
SKU: 2314921835

Zhejiang, ChinaZhejiang Tianrun Electric Co., Ltd.

US$50,000.00

1-9 Pieces

US$20,000.00

10+ Pieces

Product profile

Customization

Available

Application

Power, Lighting, Rectifier, Combined Transformer, Power Transformer,

Phase

Three

Model NO.

BSVR

Core

Core-type Transformer

Cooling Method

Oil-immersed Type Transformer

Winding Type

Auto-transformer

Certification

ISO9001-2000, ISO9001, CCC, CE

Usage

Rectifier Transformer, Combined Transformer, Power Transformer, Distribution Transformer, SVR Feeder Auto Voltage Regulator

Frequency Characteristics

Power Frequency

Shape of Core

Ring

Brand

Tianrun

Rated Frequency

50/60Hz

Rated Voltage/Hv

6kv,10kv,35kv ,Customised

Rated Voltage/LV

6.6kv,11kv,38.5kv , Customized

Transformer Capacity

1250-31500kVA ,Customized

Vector Group

Ya0 (Three -Phase and Three -Line Star Wiring)

Winding

Copper

Protective Function

Overcurrent, Under Pressure, Number of Daily Actio

Communication Method

with Standard RS485 or GPRS Communication Interfa

Tap Position

7 or 9

Regulation Mode

on-Load Tap Changer

Display Function

But The Voltage, Current, Gear, Daily Movement, Nu

Regulating Range

±10%, ±15%, ±20% (or Customized -30%~+10%)

Cooing Method

Oil-Immersed Natural Cooling

Transport Package

Wooden Case

Specification

1500*1400*2000mm

Trademark

TRNE

Origin

China

HS Code

8504231100

Production Capacity

200/Monthly

Key features

Bidirectional Flow Detection: Automatically identifies forward and reverse power flow to suppress over-voltage from renewable sources.

On-Load Tap Changing: Regulates voltage without power interruption using motorized mechanism and transition resistors.

Remote Communication Support: Enables remote monitoring and configuration via RS485 or GPRS wireless modules.

High Mechanical Endurance: Designed for over 500,000 mechanical operations and 50,000 electrical operations.

Fully Sealed Tank Design: Corrugated tank with pressure-relief valve and oil-temperature indicator to retard oil aging.

Comprehensive Protection: Features over-voltage fast-drop, under-voltage lockout, and tap-position protection.

Oxygen-Free Copper Windings: Core-type cold-rolled silicon-steel core with high-purity copper for low loss and high efficiency.

Company profile

Importers and ExportersFull Customization100% Finished Products InspectionR&D Capabilities

Zhejiang Tianrun Electric Co., Ltd.

Zhejiang, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 1 Year CertifiedNearest Port: Ningbo Port, Shanghai PortAverage Response Time: ≤0.87h

About Our Factory & Business Background

AddressNo. 788 Wenyi Road, Bihu Industrial Park, Liandu District, Lishui, Zhejiang, China

Plant Area50369.12 square meters

Number of Employees167

Registered Capital107,580,000 RMB

Terms of PaymentT/T

International Commercial Terms(Incoterms)FOB, CIF

Average Lead TimePeak Season Lead Time: one month Off Season Lead Time: within 15 workdays

Minimum Order Quantity1

Supply Chain Partners80

Our Production Capability & Technical Expertise

Main ProductsTransformer Switchgear Substation

Production Lines2

Production MachinesPunching machine, Laser cutting machine, CNC bending machine, Winding machine, Drying machine

QA/QC inspectors3 people

Inspection Type for Finished Products100% inspection(Visual inspection & Function inspection)

Inspection Method for Finished ProductsFinished product checked by packing staff

R&D Engineers7 people

Traceability of Raw MaterialsYes

Our Industry Experience & Global Business Record

Year of Establishment2003-12-05

Main MarketsDomestic

Repeat Buyers Choice30%~50%

Number of Foreign Trading Staff1

Overseas Agent/BranchYes

New Products Launched in Last yearYes

Our Certifications, Standards & Industry Recognition

Management System CertificationISO9001:2015, ISO14001, ISO45001:2018

Product CertificationCE

Cooperated with Fortune 500No

Product Q&A

Q:What is the OLTC?

An on-load tap changer is a mechanism installed in power transformers that allows voltage regulation while the transformer remains energized and supplying load, without any interruption to power supply.

Q:What is the SVR?

SVR (Feeder Automatic Voltage Regulator) is an oil-immersed on-load tap-changing transformer series-installed in 6/10/35kV distribution feeders to stabilize output voltage without supply interruption.

Q:What is the BSVR?

BSVR (Bidirectional Feeder Automatic Voltage Regulator) is a derivative of the SVR that incorporates automatic power-flow direction detection to handle both forward and reverse flows for renewable-integrated feeders.

Q:What is the relationship between OLTC, SVR, and BSVR?

OLTC is the shared core component. SVR is the base product for unidirectional feeders, while BSVR is the bidirectional variant with flow detection capabilities.

Q:What are the main applications of this product?

It is applied to radial distribution feeders, renewable-integrated feeders, substation outgoing feeders, and sectors like urban grids, oilfields, mines, and railway tunnels.