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The de-energized three-phase linear series-parallel connection, star-delta exchange, with voltage-regulation combined tap-changers
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 Voltage

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

Fastest Delivery Time: Delivery can be completed in as little as 10 days.
Peak Season Lead Time: Average lead time during peak season is one month.
Off Season Lead Time: Average lead time during off-season is within 15 workdays.
Established Manufacturer: Company established in 2002 with over two decades of experience.
Leading Manufacturer: One of the leading transformer components and insulators manufacturers in China.
Comprehensive Product Range: Offers transformer bushings, insulators, and tap changers.
Flexible Payment Terms: Accepts LC, T/T, PayPal, Western Union, and small-amount payments.
Global Shipping Options: Supports FOB, CFR, CIF, DDP, DAP, FCA, and EXW terms.

Company profile

Business Type: Manufacturer/Factory, Trading Company, Group CorporationExport Year: 2002-02-10Nearest Port: Shanghai Port, China, Nanjing Port, China, Ningbo Port, ChinaAverage Response Time: ≤3.92hTerms of Payment: LC, T/T, PayPal, etc.International Commercial Terms(Incoterms): FOB, CFR, CIF, DDP, DAP, FCA, EXW

AI-Powered supplier vetting

SummaryNanjing Rainbow Electric Co., Ltd., operating from Jiangsu, China, is a trading company and manufacturer with a focus on electrical components. The company has a significant export market, accounting for 51% to 70% of its sales. They offer diverse customization services, although they lack 3D design capabilities and ODM services. With a workforce of 10, they do not participate in offline trade shows or maintain overseas facilities. Despite having no new product developments recently, they maintain flexible design capabilities. Financial data from the past three years is available, indicating stable financial tracking.
Supplier typeThe supplier operates as a trading company, manufacturer, and group corporation, indicating a multifaceted business structure.
After-Sales capabilityThe supplier's R&D engineers are responsible for after-sales technical support, indicating some capability in this area.
Financial creditThe supplier has documented financial data for the past three years, suggesting consistent financial tracking.
R&D capabilityNo new products were developed in the past year, and no 3D design services or ODM services are offered, showing limited innovation capability.
Customization capabilityThe supplier offers extensive customization services, including full and flexible customization based on samples and designs.

Product Q&A

Q:What is the difference between this tap-changer and an OLTC?
A:
This is a no-load tap-changer that must operate only when the transformer is de-energized, unlike OLTCs which switch under full load.
Q:What is the maximum voltage for this model?
A:
The WST II is designed for medium voltage networks up to 10 kV.
Q:How many taps are available per phase?
A:
The Type II configuration features six taps per phase connected to the mid-point of the high-voltage winding.
Q:What safety protocols must be followed?
A:
Strict adherence is required to prohibit operation under load to prevent arcing and equipment damage.
Q:What testing is required after installation?
A:
Post-adjustment DC resistance testing is mandatory to confirm contact integrity.

Send Inquiry

*To:Nanjing Rainbow Electric Co., Ltd.Nanjing Rainbow Electric Co., Ltd.
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