3520 phenolic paper tube - transformer insulation tube

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3520 phenolic paper tube - transformer insulation tube

Name: 3520 phenolic paper tube - transformer insulation tube
Brand: CANGZHOU KENUO INTERNATIONAL CO., LTD.
Price: 10000 USD
Availability: InStock

Price 10000 USD ($)/ Set

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MOQ : 1 Unit

3520 phenolic paper tube - transformer insulation tube Specification

Voltage Booster Type
N/A (not a voltage booster, insulating tube)

Load Loss
N/A (insulating component, does not contribute to load loss)

Standard
GB/T1303.6-2009, IEC60641, and related international standards

Capacity
N/A (component serves as insulator, not energy storage)

Dimension (L*W*H)
Customizable: Common sizes OD 15300 mm, length up to 1200 mm

Operating Temperature
-40C to +120C (continuous duty)

Coil Material
Serves as the former for copper/aluminum windings

Cooling Type
Compatible with oil-immersed and dry-type transformers

High Voltage
Suitable for high-voltage insulation applications

Low Voltage
Suitable for low-voltage windings as insulation

Rated Voltage
Up to 35 kV (based on wall thickness)

Product Type
Phenolic Paper Tube

Material
3520 Phenolic Paper (Phenolic resin impregnated paper)

Output
Not directly applicable (insulation component)

Frequency (MHz)
Applicable for low and medium frequency applications

Efficiency
High dielectric strength, maintains insulation performance

Phase
Suitable for single and three-phase transformer applications

Usage
Transformer insulation, electrical equipment, high-voltage coil winding support

Coil Structure
Supports circular or rectangular coil winding structures

Coil Number
Not directly applicable (used as spacer/insulation between coils)

Power Scope
Depends on transformer rating, generally insulation for various voltage classes

Weight
Lightweight, varies by dimension (approx. 0.2-2.0 kg per tube)

Application Industries
Power transformers, electrical machinery, electronics, switchgear, reactors, chokes

Flame Resistance
UL94 HB or V-0 (depending on resin used)

Thickness Range
1 mm to 10 mm (customizable as per requirement)

Color
Natural brown

Storage Conditions
Store in dry, ventilated environment

Surface Finish
Smooth, brown phenolic resin-impregnated finish

Water Absorption
Low, excellent water resistance

Toxicity
Halogen-free and non-toxic

Dielectric Strength
8 kV/mm (dependent on thickness and standard)

Machinability
Easy to cut, drill, and machine, stable geometry

Customization
Size and thickness can be customized as per user requirements

Flexural Strength
80 MPa

3520 phenolic paper tube - transformer insulation tube Trade Information

Minimum Order Quantity
1 Unit

Supply Ability
10 Units Per Month

Delivery Time
60 Days

About 3520 phenolic paper tube - transformer insulation tube

3520 phenolic paper tube - transformer insulation tube

Epoxy phenolic glass cloth laminated pipe referred to as epoxy tube

definition and use

Epoxy phenolic glass cloth laminated tube is made of non-alkali glass fiber cloth as the base material, epoxy phenolic resin as a binder heating baking and curing from the curling products, with high mechanical strength, high Wet electrical performance and good stability, suitable for mechanical, electrical and electronic products.

epoxy phenolic glass cloth laminated pipe technical requirement

epoxy phenolic glass cloth laminated tube appearance

The surface should be flat, not allowed to have a layer, foam, but allowed to have no more than the wall thickness to allow the deviation of the slight wrinkles and processing finishing traces. The inner wall allows for slight wrinkles. Both ends should be cut neatly.

epoxy phenolic glass cloth laminated pipe main performance indicators

number	project name	unit	experiment method	index
One	density	g/cm	GB/T5132	1.40
Two	Bending strength	MPa	Attached to A in Q/JBQP50	176
Three	Compressive strength	MPa	GB/T5132	69
Four	Shear strength	MPa	Attached to A in JB/T8150	14.7
Five	Volume resistance series Under normal After immersion	m	GB/T1410 4.7 in Q/JBQP50	1.010101.0108
Six	Parallel layer to insulation resistance Under normal After immersion		GB10064 4.8 in Q/JBQP50	1.010101.0107
Seven	Dielectric loss tangent, 50Hz	-	GB/T5132	0.030
Eight	Vertical layer to withstand voltage In the (90 +2) of the transformer oil pressure 5min Wall thickness 1.5mm 2.0mm 2.5mm 3.0mm	kV	GB/T5132	internal diameter 625mm 7 10 13 15	internal diameter 26mm 12 14 16 18
Nine	Parallel layer to withstand voltage Pressure in the (90 + 2) transformer oil 5min	kV	GB/T5132	25
Ten	Surface withstand voltage Damps after 24 hours in normal air pressure 5min	kV	GB/T5132	12

Superior Insulating Performance for Transformers

The 3520 phenolic paper tube provides exceptional insulation for both low and high-voltage applications, supporting circular or rectangular coil windings in power transformers, reactors, and electronic equipment. Its high dielectric and flexural strength, along with excellent water resistance and flame-retardant properties, make it a dependable insulating component in demanding electrical environments.

Tailored Dimensions and Easy Processing

Available in customizable sizes (OD 15300 mm, lengths up to 1200 mm, and thickness 110 mm), the 3520 phenolic paper tube can be easily cut, drilled, or machined to meet diverse transformer and machinery requirements. Its lightweight design and stable geometry simplify installation and handling, ensuring precise fit and reliable performance in a wide range of applications.

FAQs of 3520 phenolic paper tube - transformer insulation tube:

Q: How is the 3520 phenolic paper tube used in transformer applications?

A: The 3520 phenolic paper tube serves as an insulating support for coil windings in power and distribution transformers. It separates and insulates conductor windings, providing stable electrical and mechanical support for both single and three-phase transformer designs.

Q: What benefits does a phenolic paper tube provide compared to other insulating materials?

A: This tube offers high dielectric strength, excellent water and flame resistance, lightweight construction, and non-toxic, halogen-free composition. It is easy to machine and customize, making it ideal for electrical environments where safety and reliability are critical.

Q: When should I choose a 3520 phenolic paper tube for transformer insulation?

A: You should select this tube when requiring insulation for high or low-voltage transformer windings, especially in applications needing reliable electrical isolation, compatibility with oil-immersed or dry-type transformers, and compliance with GB/T1303.6-2009 or IEC60641 standards.

Q: Where can the 3520 phenolic paper tube be applied outside of power transformers?

A: Beyond power transformers, this insulating tube is suitable for use in electrical machinery, electronics, switchgear, reactors, and chokes, wherever high dielectric strength, moisture resistance, and flame retardance are needed.

Q: What is the customization process for the 3520 phenolic paper tube?

A: Customization involves specifying the required outer diameter (15300 mm), length (up to 1200 mm), and thickness range (110 mm). These specifications ensure a tailored fit for the users unique transformer or electrical application.

Q: How should I store and handle the 3520 phenolic paper tube for maximum longevity?

A: Store the tubes in a dry, ventilated location to avoid moisture absorption. Their durable, stable geometry allows for easy handling, providing long-term performance when stored and used according to guidelines.

Q: What certifications and standards does the 3520 phenolic tube meet?

A: The tube complies with international standards such as GB/T1303.6-2009 and IEC60641, ensuring dependable quality, performance, and safety for global transformer and electrical equipment markets.

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