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On-load tap-changer for capacity and voltage regulation On-load capacity regulation tap-changer

Name: On-load tap-changer for capacity and voltage regulation On-load capacity regulation tap-changer
Brand: Nanjing Rainbow Electric Co., Ltd.
SKU: 2109760675

Jiangsu, ChinaNanjing Rainbow Electric Co., Ltd.

US$5.00-20.00

50 Pieces

Sample price:US$10.00/piece.Request sample

Product profile

Customization

Available

Application

Power, Electronic, Instrument

Phase

Three

Model NO.

tap changer

Core

Core-type Transformer

Cooling Method

Dry-type Transformer

Winding Type

Two-winding Transformer

Certification

ISO9001-2000, ISO9001, CCC

Usage

Single-phase Transformer, Power Transformer, Distribution Transformer

Frequency Characteristics

Power Frequency

Brand

NJREC

Rated Volatge

36KV

Rated Current

30A

Length

530mm

Height

70mm 100mm 120mm 130mm 150mm 170mm 200mm

Transport Package

Wooden Box

Trademark

NJREC

Origin

Jiangsu, China

Production Capacity

20000pieces/Year

Key features

No-Load Operation Design: Specifically designed as a no-load tap-changer, requiring transformer de-energization before adjustment.

Central Tapping Configuration: Features Type II central tapping with six taps per phase connected to the high-voltage winding mid-point.

Oil Immersion Cooling: Mechanism is fully immersed in insulating transformer oil for dielectric strength and heat dissipation.

Compact Robust Build: Compact design ideal for distribution transformers, ensuring stable voltage levels for end-users.

Multiple Height Options: Available in various heights including 70mm, 100mm, 120mm, 130mm, 150mm, 170mm, and 200mm.

DC Resistance Verification: Mandatory post-adjustment DC resistance testing ensures contact integrity and safety.

Trusted Manufacturer: Produced by NJREC, a leading Chinese manufacturer with over 20 years of export experience.

Company profile

Nanjing Rainbow Electric Co., Ltd.

Jiangsu, China

Business Type: Manufacturer/Factory, Trading Company, Group CorporationExport Year: 2002-02-10Nearest Port: Shanghai Port, China, Nanjing Port, China, Ningbo Port, ChinaAverage Response Time: ≤2.64hTerms of Payment: LC, T/T, PayPal, etc.International Commercial Terms(Incoterms): FOB, CFR, CIF, DDP, DAP, FCA, EXW

About Our Factory & Business Background

AddressNo. 396 Heyan Road, Nanjing, Jiangsu, China

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

Our Production Capability & Technical Expertise

Main ProductsTransformer Bushing, Porcelain Insulator, Composite Insulator, Condenser Bushing, Glass Insulator, Insulation Materials, Wall Bushing, Porcelain Bushing, Tap Changer

Our Industry Experience & Global Business Record

Main MarketsNorth America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Europe

Product Q&A

Q:What is the difference between this tap-changer and an OLTC?

Unlike On-Load Tap-Changers (OLTC) that switch under full load, this WST II model is a no-load tap-changer that must only operate when the transformer is de-energized.

Q:What is the maximum voltage rating for this switch?

The WST II switch is designed for medium voltage networks up to 10 kV.

Q:Can the installation dimensions be customized?

Yes, the switch is available in various heights (70mm, 100mm, 150mm, 170mm, 200mm) and lengths (347mm to 638mm) to match specific winding tap leads.

Q:What safety protocols must be followed during operation?

Strict adherence to safety protocols is required, specifically the prohibition of operation under load to prevent arcing and equipment damage.

Q:What is the lead time for delivery?

Lead time varies by season: one month during peak season and within 15 workdays during off-season.