Lb7-220 Oil-Immersed Fully-Sealed Structure Current Transformer

• Application: Electronic, Instrument
• Type: Current Transformer
• Phase: Three
• Operation Condition: Outdoor
• Usage: Protection, Measurement
• Winding Form: Single Layer & Tightly Wound Type
• Model NO.: Lb7-220 Type
• Insulating Medium: Insulating Paper
• Installation: Active Type
• Magnetic Circuit Structure: Combined Type
• Voltage Transformation Principle: Capacitive Type
• Structure: Fully-Sealed
• Voltage: 220LV
• Applicable Standard: IEC/GB
• Current: Customized
• Transport Package: Wooden Case
• Specification: As per drawing
• Trademark: VILLE
• Origin: China
• HS Code: 85
• Production Capacity: 5000

Product Description

Introduction to Product:
This product has an oil-immersed fully-sealed structure. It consists of metal expander, oil conservator, main
body and other accessories. The primary coil is U-shape, the main insulation uses capacitor type oilpaper, use
the high voltage cable paper to wrap the core of primary coil, and set up several main shields among it.

The secondary coil is set up at the lower part of primary coil; the whole main body is fixed in the oil tank. There
is a bushing at upper part of oil tank, and an oil conservator is set up on top of bushing, the primary wire is lead
out via the hole of oil conservator, the seriesparallel switching operation is carried out outside the oil
conservator.

Use a stainless steel expander as the oil compensation device to ensure oil quality. Oil level is indicated by the
pointer at the upper window of expander.

A nameplate showing the technical data and a description plate showing the coils arrangement schematic
diagram are set up on the oil tank. There are four holes or lifting blocks on the under-frame for hoisting the
product, and an oil-discharge valve  and earthing bolts at bottom of oil tank.

The product can have five or six secondary coils, the secondary measurement coil is made by microcrystalline
alloy with high magnetic conductivity, thus can ensure that the measurement precision reaches up to 0.2 grade
or 0.2S grade.
The secondary terminal has limit and double sealing functions. The outlet box is made by stretching wholly; it is
elaborate and practical. The oil tank is carried out surface treatment; it is bright and durable.

Complete transformer is fully sealed. New technology and new materials such as hot galvanizing or stainless
steel standard parts etc are used for outside of the product to prevent from rustless and get long working life.

Reasonable and originative structure as well as advanced technology ensures that the product runs reliably,
safely and durably.

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 testinng.
3.	After sale service
a.	installation and commissioning, training the workers
b.	quick response within 12 hours any time
c.	provide 12 months gurantee 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 starndard 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 wanrranty period?
A:	12 months after transformer operation.
6. Q:	Can u do installation and commissioningin 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.
8. Q:	Are you manufacturer or trading company?
A:	Manufacturer with own import & export company.

 

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!