Our products: Epoxy glass fiber reinforced entwined tube with complete specification is developed for 110kV~1,000kV composite hollow insulators, reactors, arresters, fuses, mutual inductors, on load tap changers, transformers and other high-voltage electrical equipment structures, with performance parameters reaching IEC standards, and nationally advanced level. It is entwined by uninterrupted fiber wet method; twining angle, ±50~55 (we can adjust twining angle to reach your mechanical performance requirement); fiber content (weight ratio), 70~75%; density, 2.00 g/cm3; water absorption, 0.01 %; axial thermal expansion coefficient, 1.8 E-05 1/K; glass transition temperature, 110~120 ºC; chemical resisting mineral oil: excellent; solvent and dilute acid: good; tensile elastic modulus, axially 14,000 MPa; tensile strength: axially 280 MPa; tensile strength: annularly 600 MPa; compressive strength: axially 240 MPa; bending strength: axially 350 MPa; shearing strength: 150 MPa; relative dielectric constant: 2-3.2; dielectric dissipation factor: 0.003-0.015; partial discharge capacity≤5; insulation strength: axially 3~6 kV/mm; insulation strength: radially 10~12 kV/mm; lightning impact: 110 KVP; power frequency impact: 50 KV; thermal rating: B, F and H; internal diameter>6mm ; external diameter<500mm; length<1,500mm. The above data is only for reference, our sleeve parameters are customized according to customer demands.
Ningbo Ville Electric Co., Ltd. is a company specialized in research, development and production of transformer and high voltage & low voltage electrical power equipment.
It locates in Hi-technical enterprise R & D center zone of Ningbo, Zhejiang province, which is one of the well-know coastal city in China. Its professional engaged in turnkey project contractor of power substation, power plant project and electric power complete equipments.
Working field: Manufacturing, engineering, designing, executing and commissioning for HV and LV electrical products.
Products application:
Power-fossil fuel plant, Steel plant, Infrastructure- railway, international generation, substation, hydropower station, wind power substation, transmission and distribution.
We has excellent experience and good capacity in complete projects equipments in Generation, Substation, Transmission and Distribution from 400V-330kv, especially in Power plant, Substation construction and Transmission line, including of design, complete equipment, installation, Commissioningand after-sales service, and also design the complete Electrical Solutions according to customer's demand. We are mainly services to International State Power Board, Power Construction Contractor, Power Project Contractor, Factories and the Electric Power Project in the world.
In order to achieve the enterprise's strategic target---being stronger, larger, and superior, we continue to expand throughout the world's markets for power transmission and distribution area. And we also actively attach our team to competition, walking forward to the mission of "First-class worldwide electrical equipment supplier"
