Electrical Insulation PSP 3050

Product Introduction

Unlike conventional hot-pressed boards, PSP 3050 achieves its final properties through an advanced hot-air drying process followed by precision calendering, resulting in superior dimensional stability and uniform density distribution across all thicknesses . This unique manufacturing method ensures consistent quality while maintaining the exceptional purity levels required for high-voltage applications up to 35kV.

PSP 3050 is classified as Class A insulation material with a continuous operating temperature rating of 105°C, making it ideal for power and distribution transformers operating under normal service conditions.

PSP 3050 fully complies with international standards for electrical insulation materials, standard IEC 60641-3-1, IEC type  B.2.1B

Material Composition

• 100% unbleached sulphate cellulose from long-fibred coniferous wood

• Ultra-pure water in manufacturing process

• No bonding agents or adhesives – pure cellulose structure

• Natural colour – no dyes or artificial colourants

  
  

Performance Characteristics

1. High chemical purity: Prevents contamination of transformer oil and ensures long-term dielectric stability

2. Excellent dielectric strength: ≥12 kV/mm in air, ≥40 kV/mm in oil for reliable insulation performance

3. Superior mechanical strength: Minimum tensile strength 80-90 MPa (MD) for demanding winding and assembly processes

4. Good oil absorption:≥13% absorption rate ensures complete impregnation in oil-filled transformers

5. Excellent compatibility: Works with mineral oils, synthetic esters, and natural ester liquids 

FAQ:

Q1: What is the temperature rating of PSP 3050?

A: PSP 3050 is rated as Class A insulation material with a continuous operating temperature of 105°C

Q2: Can PSP 3050 be used in capacitors?

A: Yes, PSP 3050 is suitable for capacitor applications due to its high chemical purity and dielectric propertie

Q3: What are the standard sheet sizes?

A: Standard sheet sizes are 1000 x 2000 mm and 2100 x 4200 mm. Other formats and individual solutions are available on request