Wdg Type B off-Circuit Tap Changer for Transformers

• Customization: Available
• Application: Power
• Phase: Three
• Model NO.: WDG type B
• Core: Core-type Transformer
• Cooling Method: Oil-immersed Type Transformer
• Winding Type: Two-winding Transformer
• Usage: Single-phase Transformer, Rectifier Transformer, Combined Transformer, Power Transformer, Distribution Transformer
• Frequency Characteristics: Power Frequency
• Max Rated Current: 2000A
• Connection Method: Y, D
• Rated Voltage: 252kv
• Transport Package: Wooden Cases
• Specification: IEC CE, ISO
• Trademark: VILLE
• Origin: Ningbo
• HS Code: 85
• Production Capacity: 50000 Sets

Product Description

WDG type B Off-Circuit Tap Changer for transformers

General
Type WDG/WLG/WSG Off-Circuit Tap Changer (herein referred as tap changer) is a drum structure off-circuit

tap changer applicable for power transformer and industry transformer as well as traction transformer.

It can only be operated when the transformer is de-energized.

By number of phase, tap changer can be divided into three-phase, single plus two-phase and single phase.

By leads output terminal location, it is divided into middle output leads, two ends output leads and without fixed
leads.

Type A and Type B tap changers can be mounted between the coils of the transformer; and type C is to be
mounted at side of the transformer coils.

The operations of the tap changer are top manual, side manual from top transmission or from bottom
transmission or motor driving at side.

There are 6 regulation connections as standard design: linear, single-bridging, double-bridging, Y-D change-
over, series-parallel change-over and reversing. Refer to table 2 for the basic connection methods code and
Fig.2 for connection schematic diagrams. For special requirement, please contact us with details.

Designation of tap changer model 

Main technical data

 Service condition

1 Service temperature range for tap changer in oil medium is -25ºC ~100ºC

2 Service environment temperature range of tap changer is -25ºC ~ + 40ºC . Relative humidity is less than 85%.

3 Perpendicular deflection between ground and tap changer after being mounting on transformer shall be less
   than 2%.

4 There shall be no serious dust, explosive gas or corrosive gas at site.

Workshop

Our Services

1.	Pre sale service
a.	make technical solution
b.	send quotation, technical data sheet and drawing
c.	prepare power transmission plan, testing plan and shipment plan
2.	In sale service
a.	supervise the manufacturing schedule totally in accordance with the plan
b.	send photos to customer during every manufacturing process(hold point)
c.	inform the customer one week before testing.
3.	After sale service
a.	installation and commissioning, training the workers
b.	quick response within 12 hours any time
c.	provide 12 months guarantee period normally.

FAQ

1. Q:	What is your delivery time ?
A:	Depend on the type of transformer.
2. Q:	What is your payment term?
A:	30% advance by T/T , 70% before delivery by T/T or L/C or we can discuss about it.
3. Q:	What kind of standard you follow?
A:	IEC, ANSI, CSA, GB, etc
4. Q:	What kind of supporting documentation you can provide normally
A:	Quotation, outline drawing, manufacturing plan, quality control plan testing plan, financial report, type test report(KEMA, CESI),reference list, etc
5. Q:	What is your normal warranty period?
A:	12 months after transformer operation.
6. Q:	Can u do installation and commission in user's site?
A:	Yes, we can send our installation team to user's country for service.
7. Q:	Do you have any experience in this kind of transformer?
A:	Yes, we can provide reference list for check.

Our advantages:

Quality Assurance

--From the very beginning, VILLE ensures quality in every step to achieve the best quality.

 Experience Sharing

--With more than 30 years' experience in power industry, VILLE brings you an optimized solution.

 Global Service

--Wherever you are, VILLE global network will support and provide you with value.

 Quick Response

--In response to your needs without delay, VILLE  knows the value of your time.

 

Thanks for choosing VILLE as your reliable partner and please trust both
of us will create a brilliant future!