Generator varnish manufacturer
Generator varnish is an essential protective and insulating coating material and is an important consideration in the reliability and life of the advanced machines. Generators, wherever they are used in power plants, industrial establishments, or as standby power supply units, have been engineered to transform mechanical energy into electrical energy. It is a high-speed rotation and high-intensity electrical and magnetic field process that subjects the internal hardware, especially the stator and rotor windings, to tremendous stress. These windings are varnished through an accurate process of impregnation like vacuum-pressure impregnation (VPI) in order to form a rigid, integral structure. The foremost function of such varnishing is to give extremely good electrical insulation.
By sealing up all the gaps and air spaces between the conductors, it significantly enhances the dielectric strength of the insulation system, and eliminates the possibility of electrical arcing and short circuits that result in generative failure. In addition to offering insulation, varnish also offers the needed mechanical support. The high speed of rotation and strong electromagnetic forces of a generator make the windings oscillate.
Without the backing of a hard binding agent, the vibrations will kill the insulation, and the "turn-to-turn shorts" condition will result. The hardened varnish forms a monolithic rigid structure that firmly encases the windings, damps these vibrations, and shields the insulation from mechanical force wear. This stability also accomplishes generator balance and noise reduction. The varnish is also a very good environmental barrier. It isolates the windings from moisture, humidity, oil, and other foreign particles that lead to corrosion and breakdown of the insulation in the long run. The temperature resistance of the varnish is also important as it has to sustain the heat produced by the operation of the generator without deteriorating. Due to these reasons, this choice and implementation process of a quality generator varnish cannot be negotiable for the safety, efficiency, and long serve.
We also have a full range of complementary products, including thinners, epoxy resins, and specialty coatings, so you can have us as your single-source solution for all industrial chemical needs. Our Air Drying Varnish is especially popular for its fast cure and ease to use for most of these jobs.
