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Please note:  The POWER-GEN University Pre-Conference Workshop workbooks are

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CORAL REWINDING INDIA PRIVATE LIMITED

TAMILNADU, 
India
https://www.coralindia.co.in/
  • Booth: 4121


We improve your generators

Coral Group is a family owned company dedicated in providing products and services to the electrical Power industry. We manufacture Coils, Bars, Field coils and Insulating Kits. We service our customers with engineering services with power improvements, machine rewinding, in our sites, or onsite at customer’s premises and refurbishment of Turbo- or Hydrogenators worldwide.

Coral Group was founded in 1979, it has over 350 People, 3 Manufacturing sites and can handle all types of machines up to 700MVA and from 400V to 22KV. Coral has a global outstanding customer base and a lot of experience. Some of our winders have over 40 years experience. 

Visit us at https://www.coralindia.co.in/ , http://www.coralcoil.com/ or https://ffm-industrialsolutions.com/

The coral group is represented in North America By FFM Industrial Solutions LLC

Brands: Coral, Coral Coil, Coral rewinding, Motors, Generators, Coils, Bars, Field Coils Diamond coils, Turbo Generators, Hydro Generators, Diamond coils, Roeble Bars, Rewinding, Onsite rewinding

 Products

  • Coils
    We at Coral coil manufacture our entire range of diamond coils in automatic / semi-automatic machines to ensure best delivery time and unmatched quality at an affordable cost.
    Voltage Range 400 V to 16 KV
    ...

    • DIAMOND COILS

    We at Coral coil manufacture our entire range of diamond coils in automatic / semi-automatic machines to ensure best delivery time and unmatched quality at an affordable cost.

    COIL TYPES:

    • Diamond coils
    • Turn to turn overhang transposed diamond coils

    MAIN WALL INSULATION SYSTEM:

    • Thermo reactive system / resin rich system
    • Micalastic system – A resin poor system in which the insulated bars are heated under vacuum and impregnated in heated resin. The dipped bars are then packed in hydraulic pressed curing chamber
    • Uncured micalastic system
    • Special insulation system – Other than the above specified systems, We offer solutions for customer specific insulation systems.

    CONDUCTOR INSULATION:

    • Enamel with double/single Dacron
    • Enamel with double/single glass
    • Enamel with single Dacron + single glass
    • Enamel with mica
    • Enamel with mica + film
    • Nomax

    COPPER GRADE:

    Grades:

     G1, G2, G3

    MAIN WALL INSULATION MATERIAL:

    • VPI
    • Mica/glass
    • Mica/film
    • Mica/glass + film

    CORONA DISCHARGE PROTECTION:

    • Corona shield tape / conductive tape
    • Stress grading tape / semi conducting tape

    VOLTAGE RANGE:

    • 400 V to 16 KV

    TESTING AND INSPECTION:

    In process inspection:

    • HV/HF inter element test
    • Surge test – among many other tests performed while processing

    FINAL TESTING:

    • Tan delta
    • High voltage
    • HV/HF test
    • DCR
  • Bars
    Roeble Turbo Bars, Indirect cooled, water cooled and direct hydrogen cooled From 11 KV to 22 KV...

    • TURBO BARS

    COIL TYPES:

    • Indirect cooled turbo bars
    • Direct water cooled turbo bars
    • Direct hydrogen cooled turbo bars

    MAIN WALL INSUALTION SYSTEM:

    • Thermo reactive system / resin rich system
    • Micalastic system – A resin poor system in which the insulated bars are heated under vacuum and impregnated in heated resin. The dipped bars are then packed in hydraulic pressed curing chamber
    • Uncured micalastic system
    • Special insulation system – Other than the above specified systems, We offer solutions for customer specific insulation systems.

    CONDUCTOR INSULATION:

    • Enamel with double/single Dacron
    • Enamel with double/single glass
    • Enamel with single Dacron + single glass

    COPPER GRADE:

    Grades:

     G1, G2, G3

     MAIN WALL INSULATION MATERIAL:

    • VPI
    • Mica/glass
    • Mica/film
    • Mica/glass + film

    CORONA DISCHARGE PROTECTION:

    • Corona shield tape / conductive tape
    • Stress grading tape / semi conducting tape

    VOLTAGE RANGE:

    • 11 KV to 22 KV

    TESTING AND INSPECTION:

    In process inspection:

    • Inter element test
    • Nitrogen leak test
    • Thermal shock test
    • Helium leak test, among many other tests performed while processing

    FINAL TESTING:

    • Tan delta
    • High voltage
  • Winding Kits
    We are Coral coil can supply the entire range of winding kits to install and commission motor / generator of any rating...

    • WINDING KITS

    We are Coral coil can supply the entire range of winding kits to install and commission motor / generator of any rating

    • Wedges machined to perfection as per your dimension
    • Liners
    • Banding chords
    • RTDs
    • Insulation tapes and sealing tapes
    • HV cables / take off leads
  • Hydro onsite rewinding
    Onsite rewinding and optimization of Hydro generators, either with our team or with preferred partners....

    • Hydro onsite rewinding with Coral Rewinding. Our range of products and services:
    1 - Engineering  and drawings including optimization of output
    2 - Supply of Coils / Bars / Mounting materials
    3 - Electrical Rewinding
    4 - Mechanical work
  • Turbo Onsite Rewinding
    Onsite rewinding and optimization of Turbo generators, either with our team or with preferred partners....

    • Turbo Generator onsite rewinding with Coral Rewinding. Our range of products and services:

    1 - Engineering and drawings including optimization of output

    2 - Supply of Coils / Bars / Mounting materials

    3 - Electrical Rewinding

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