Oil Duct Spacing Paper for Oil Transformer Insulation Material

Product Description

OIL DUCT STRIP TRANSFORMER OIL DUCT :
We have one pressboard stick (oil duct stick) equipment and 4 sets full-automatic edge fixing lines. Our daily putout is 10000 pcs duct stick to supply. We could provide 500 m oil duct strip one day. Oil duct strip provides duct for the flow of the cooling oil in layer and strip windings in distribution power transformers. It is manufactured by bonding transformer board sticks onto insulating paper or single-coated diamond dotted paer. Duct strip has the excellent transformer oil impregnation feature, it has high compressive strength more than corrugated pressboard which is the old technology, it's used at high temperature condition and it could be improved the circuit strength.

TRANSFORMER OIL DUCT We have 2SETS pressboard stick (oil duct stick) equipment and 4 sets full-automatic edge fixing lines. Our daily putout is 10000 pcs duct stick to supply. We could provide 500 m oil duct strip one day.

Introduction
 Insulation class: A (105 °C)
 100% sulphate wood pulp
 Natural-color
 Precompressed pressboard, even fiber orientation, hard and dimensionally stable
 High purity and mechanical strength
 Low shrinkage, fiber-free surface
 Good compatibility with liquid dielectrics
 
Product Description
Description and feature:
Duct strip is made from high quality pressboard G4 grade. It has excellent transformer oil impregnation feature, high compressive strength more than corrugated pressboard which is the old technology. It is used at high temperature condition and it could be improved the circuit strength.The character are below:
1. High mechanic strength
2. High electric strength
3. Accurate dimension
 
Application:  
Oil duct strip provides duct for the flow of the cooling oil in layer and strip windings in distribution power transformers. It is manufactured by bonding transformer board sticks onto insulating paper or single-coated diamond dotted paper.
Main strips: Rectangular strips, T-strips, Pigeon cauda strips, Abnormity strips.
 
 
TRANSFORMER OIL DUCT STRIP DATA SHEET
PART1: PRESSBOARD STICK4*5*1000MM

ITEM	TYPICAL VALUES	MATTER OF FACT
Thickness: mm	4mm±7.5%	4.1-4.3mm≤7.5%
Width	5±0.5mm	4.95-5.38mm≤0.4mm
Length of 1000mm:	±5mm	1000±3 mm
Pitch of stick centre:	±3mm	23±2 mm
Apparent density: g/cm3	1.1-1.2	1.18
Moisture content ,%	4.0 to 9.0%	5.7
PH water extract:	6.0 to 9.0	6.8
Ash content,%    maximum	1%	0.51
Tensile strength  Mpa Machine direction: Cross machine direction:	≥90 ≥50	107.4 101.3
Oil absorption	≥7.0%	12.29
Shrinkage rate% MD               CMD          Thickness D	≤1.0 ≤1.4 ≤6.0	0.16 0.25 ≤5
Elongation rate  MD               CMD	≥3 ≥4	≥4.4 ≥4.4
Conductivity of aqueous extract Ms/m	≤10.0	5.03
Dielectric breakdown:(Kv/mm )In Air In Oil	10 24	16.7 35.7

 
PART2: SINGLE SIDE DIAMOND DOTTED PAPER DATA SHEET

ITEM	TYPICAL VALUES	MATTER OF FACT
Caliper:  (millimeter)	0.25mm
Thickness: mm	0.25±0.025mm+0.06		0.260 (0.260,0.258,0.262)
Width: mm	1000±5mm		1000-1005
Apparent density: g/cm^3	0.9 to 1.1		1.01
Moisture content ,%	4.0 to 8.0%		5.6
PH water extract:	6.0 to 8.0		7.5
Ash content,%    maximum	1%		0. 43
Coating thickness per side mm	0.006 to 0.012		0.011
Tensile strength,N/mm^2  Machine direction:  Cross machine direction:	80 35		86.6 48.1
Dielectric breakdown:  (volts/layer ,dry test)	≥2100		2230
Bond strength: Kpa	450kpa		679

                                         
   
1.Rectangular Strips

2. Trapezoidal Strips
  

 

 

Certifications

Product quality: With consistent quality control throughout the entire process of product design and development, material procurement, production, quality inspection, and sales, the company has passed strict quality system certification and has been widely recognized by well-known customers. The company's products have advantages in quality.
 

 

Packaging & Shipping

 

Company Profile

KangLiyuan Technology (Tianjin) Co., Ltd. is an emerging technology-based insulation material company in China. It has a membership certificate of the China Electrical Equipment Industry Association and is a governing unit of the Insulation Materials Branch of the China Electrical Equipment Industry Association. It is a comprehensive processing company of insulation materials and insulation parts and birch and wood in North China. Manufacturer of beech electrical laminated wood panels. It is the first domestic manufacturer of beech electrical laminated wood. The company's products are widely used in electrical control fields such as insulating materials and insulating parts for oil-immersed transformers (10kV-750kV), dry-type transformers, motors, explosion-proof electrical appliances, complete sets of equipment, high and low voltage electrical appliances, etc.

Our products all meet the national standard, IEC standard and ISO standard. We have more than 60 national inventions and utility model patents, and the reliable quality of our products and our superb service has received warm praise from our customers!
We take customer satisfaction as our goal, trying our best to be more professional. In line with the principle of "putting customers first and pursuing continuous improvement" ,we will keep innovating and never stop on our way to become a new material supplier of transformer industry at home and abroad.

Our company has won plenty of awards like "Tianjin Quality Trustworthy Team","Tianjin Excellent Quality Management Group","Advanced Enterprise of Tianjin Promoting General Quality Management Team Activities","National Science And Technology Small And Medium-sized Enterprise","2016 National Excellent Quality Management Unit","2017 National Excellent QC Group","National Hi-tech Enterprise" and we are determined to become better.

Customer visit

FAQ

Q: How you make sure the quality?
a. We will consult on your requirements, and recommend suitable products to you.
b. Before production, we will send samples to you
c. During production, we will always check quality, package, delivery etc.
d. Before package, with QA to check everything
e. After shipment, we will consult with you about satisfaction.

Q: How to make sure the delivery date?
a. Before production, we will see we can meet your time or not.
b. After your payment, we start our preparing material immediately.
c. During production, We will inform you of the production scheduled.
d. Before shipment, we will inform you to pay the balance on time and booking immediately.