Corona Resistant Winding Wires
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In inverter driven motors, excessive surges and voltage peaks during speed variation, creates corona discharge in the stator windings, which induce extra thermal stress on the insulation, causing excessive thermal ageing there by weakening and even decomposing of the insulation, leading to premature failure of motors. Corona induced failure is a typical phenomenon. Mica based products are used in certain application where corona resistance is required. Mica is naturally occurring and is available easily. But it has its own inherent weakness. It has poor flexibility and large area and as such, the space required is more for any mica based application. This result by increasing the size of the motor, making it unusable where space constraints are there. Moreover it has poor adhesion to most of theresins. Improved dielectric materials having resistance to corona discharge-induced deterioration would therefore be highly necessary. M/s. Dupont has been manufacturing corona resistant Wire enamel under the brand name “Voltatex”. Corona Resistant Winding Wires are used in Inverter drives & Stator Windings.
Poly Wnding Wire
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We also offer poly wrapped winding wire commonly known as �Submersible Copper Winding Wire�. The copper conductor is wrapped with thin polyester film and Biaxial oriented poly propylene (BOPP) films. The most modern plant with sophisticated wrapping heads and in line continuous heat shrinkage furnace is installed to get uniform covering. A complete quality assurance testing by instruments covering all governing standards is available.
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Submersible Winding Wire
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