Electrical Oil Duct Insulation Strip Pressboard Strips Transformer

Product Description

 Specifications
Place of Origin: China (Mainland)                    Brand Name: XINCHENG
Product name: Electrical Oil Duct Insulation Strip pressboard strip transformer
Raw material: sulphate wood pulp                   Insulation class: A (105ºC)
Material: sulphate wood pulp board, pressboard       Application: High Temperature transformer
Model Number: pressboard strips                   Type: Insulation Paper, insulation pressboard
Use: Transformer oil duct                          Tensile Strength: 400Mpa 
Rated Voltage: 110-1100KV                        Usage: oil immersed transformer
Certification: ISO9001:2008, ROHS, UL               Color: Nature
Type 1: Rectangular Oil Duct Strip
Type 2: T-Strip
Type 3: Trapezoidal Strip
 
 
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
  
3. T-Strips

  
FAQ
 Q: How long is your delivery time?
A: Generally it is 3-7 days if the goods are in stock. Or it is 10-30 days if the goods are not in stock, it is according to quantity.
Q: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample for free charge(except special products), but do not pay the cost of freight.
Q: How can you guarantee the quality of mass production is same with the sample sent to me before?
A: Our warehouse staff will leave another same sample as yours. The production process will be under your requirement.
Q: What is your terms of payment ?
A: Payment≤1000USD, 100% in advance. Payment≥1000USD, 30% T/T in advance ,balance before shipment.
 
 
service
 Pre-sales Service
1.Offering comprehensive technical and business consultation services;
2.Designing and fabricating targeted products according to the special requirements of clients;
3.Introducing & Demonstrating products and its application to clients;
4.Helping clients to choose the required products.
After-sales Service
1.Highly inspecting equipments in every working procedure, quality comes first;
2.Fast & Safe Delivery;
3.Dispatching technician if customer need any site instruction.
 
 
Packaging & Delivery
Packaging Details:
1.Plastic bag and pallets.
plywood case/wooden case
2. According to cusotmer's special requirement.
Delivery: Around 1-2weeks upon order confirmed.
 
 
Please Contact Us
Miss: lydia
 
http://chinainsulation.en.made-in-china.com