Wsl off-Circuit Tap Changers for Transformers

• Customization: Available
• Application: Power
• Phase: Three
• Model NO.: WSL
• Core: Core-type Transformer
• Cooling Method: Oil-immersed Type Transformer
• Usage: Single-phase Transformer, Rectifier Transformer, Combined Transformer, Power Transformer, Distribution Transformer
• Frequency Characteristics: Power Frequency
• Max Rated Current: 4000A
• Connection Method: Y, D
• Rated Voltage: 363kv
• Transport Package: Wooden Cases
• Specification: IEC CE, ISO
• Trademark: VILLE
• Origin: Ningbo
• HS Code: 85
• Production Capacity: 50000 Sets

Product Description

WSL Off-Circuit Tap Changers for transformers

General

Type WSL Off-Circuit Tap Changers are used for adjusting the voltage of oil-immersed transformers. It is
designed like a cage without oil compartment and can be vertically installed on the transformer tank cover
through top flange directly.

As per different operating modes, there're three types of tap changer: type motor drive unit tap changer; type
ground manual drive tap changer; type hand wheel on the head tap changer. The former can be operated by
motor unit while the latter two can be only operated manually.

As per different internal structures,and regulating mode there are six types of tap changer: Type Linear off-
circuit tap changer for neutral application; Type Single-bridging off-circuit tap changer; Type Star-delta off-
circuit tap changer;

Type Double-bridging off-circuit tap changer; Type Reversing off-circuit tap changer; Type Serial-parallel off-
circuit tap changer.

As per different sizes, there are two types of tap changer: type A and type B.

There are two type of flange mounting: tank cover type and bell type.

The ground motor drive tap changer is equipped with a motor drive unit. See fig.15 for connection and "CMA9
Motor Drive Unit Instructions" specifies the operating instructions for the motor drive unit.

This instruction contains all the information for installing and operating of the three types off circuit tap changer.

Designation of tap changer model 


Main technical data

Functions and Application

Type WSL off-circuit tap changers apply to single pole or three poles oil immersed transformers with the max.
rated through current of 300A,600A,800A,1000A,1200A and highest voltage for equipment of 12 kV, 40.5kV,
72.5 kV and 126kV. And the operating position is such: model A is 5 ; mode B is 11. The rated frequency is
50Hz~60Hz.

1 Normal service condition of the tap changer

1.1 The temperature of the transformer oil shall be less than 100, more than -25

1.2 The tap changer shall be kept in the place with ambient temperature from -25~+40, and the relative
humidity shall be less then 85%.

1.3 Vertical inclination of the tap changer should not be over 2% when it is installed on the transformer.

1.4 The tap changer shall be operated in areas without any corrosive or explosive gases.

Shipment

The tap changer equipment is shipped as follows:

1 Off circuit tap changer

2 For the tap changer driven by motor drive unit, the tap changer will be delivered with Motor drive Unit type
CMA9, middle drive gear box, drive shaft

3 For ground manual drive type off-circuit tap changer, the tap changer will be delivered with hand wheel crank,
middle drive gear box and drive shaft.

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!