HT Motor Coil Manufacturing & Insulation Services
HT coil manufacturing, formed coils, resin-rich insulation and winding insulation support for industrial motors, generators and alternators.
Punjab Electric Industries manufactures and repairs coils for critical rotating electrical machines, with capability for formed coils, insulation rebuilding, coil taping, coil shaping, resin-rich systems and VPI-compatible winding applications.
Precision Coil Manufacturing & Insulation Support
Custom coil and insulation solutions for high-duty industrial rotating machines.
HT coils are among the most critical components in high-voltage rotating machines. Their reliability depends on correct conductor selection, accurate coil dimensions, insulation build-up, taping quality, coil forming, slot fitment, curing, impregnation compatibility and final testing.
PEI supports coil and insulation requirements for motors, generators, alternators and related electrical machines through in-house manufacturing, repair and insulation work. The capability includes new HT coil manufacturing, formed coil preparation, resin-rich coil systems, VPI-compatible coils, reverse engineering from samples, insulation rebuilding, coil taping, coil pressing and Class F / Class H insulation work.
This service is especially relevant when machines require stator rewinding, spare coil replacement, insulation upgrade, coil failure correction, high-voltage repair or restoration of ageing winding systems.
KEY SERVICE AREAS
A focused range of coil manufacturing, insulation rebuilding and winding preparation services.
HT Coil
Manufacturing
Manufacturing of high-tension coils for motors, generators and alternators as per sample, drawing or machine requirement.
Formed Coil Manufacturing
Pre-formed coils prepared with correct geometry, overhang profile & slot-fitment accuracy for HT machines.
Resin Rich Coil Manufacturing
Coils manufactured with resin-rich insulation systems for improved dielectric strength, mechanical stability & insulation reliability.
VPI-Compatible Coil Manufacturing
Coils prepared for vacuum pressure impregnation, allowing resin or varnish penetration after winding assembly.
Coil
Winding
Winding of coils with correct conductor size, number of turns, coil pitch, shape and insulation build-up.
Coil
Taping
Application of mica, glass, polyester or other specified insulation tapes based on voltage class and insulation requirement.
Coil
Forming
Mechanical forming of coils to achieve required shape, overhang profile, slot compatibility and phase clearance.
Coil Pressing /
Shaping
Controlled pressing and shaping to ensure dimensional stability and proper fitment inside stator slots.
Coil Reverse Engineering
Study and replication of coil dimensions, turns, conductor size, insulation build-up and geometry from an existing coil sample.
Spare Coil Manufacturing
Manufacturing of spare coils for emergency maintenance, planned shutdowns and future machine repair requirements.
Insulation
Rebuilding
Restoration or upgrading of damaged, aged or weakened winding insulation systems.
Class F / Class H Insulation Work
Insulation system selection and application based on machine operating temperature and duty requirement.
Mica / Glass Tape Insulation Work
Application of mica and glass tape insulation systems for HT winding and coil applications.
TECHNICAL CAPABILITY
Key technical factors PEI considers during coil manufacturing and insulation work.
Voltage Class &
Insulation Design
Insulation system selection based on voltage level, machine design, duty cycle and operating environment.
Conductor Size &
Turns
Matching conductor size, number of turns and winding dimensions to the original or approved design.
Coil Pitch &
Geometry
Maintaining correct coil pitch, bend radius, overhang profile and slot portion dimensions.
Slot Fitment
Ensuring proper slot compatibility without excessive stress or insulation damage during insertion.
End-Winding
Clearance
Maintaining adequate overhang shape, phase clearance and mechanical stability.
Insulation Build-Up
Controlled application of mica, glass and specified insulation layers with correct thickness and overlap.
Thermal Class
Class F / Class H insulation selection based on operating temperature and customer requirement.
Resin Rich /
VPI Compatibility
Coil construction aligned with resin-rich systems or VPI treatment requirements.
SCOPE OF WORK
What PEI can handle under HT coil and insulation services.
Coil Study &
Requirement Assessment
* Machine type, rating and voltage review
* Sample coil inspection
* Drawing / dimension study, if available
* Failure condition review
* Insulation system assessment
Coil Design &
Replication
* Coil dimension capture
* Conductor size identification
* Number of turns confirmation
* Coil pitch assessment
* Slot portion and overhang measurement
* Reverse engineering from sample
Coil Manufacturing
* Conductor preparation
* Coil winding
* Coil forming
* Coil pressing / shaping
* Spare coil manufacturing
* Batch coil preparation for rewinding jobs
Insulation Work
* Mica tape insulation
* Glass tape insulation
* Slot insulation
* Phase insulation
* End-winding insulation
* Class F / Class H insulation
* Resin-rich or VPI-compatible insulation preparation
Fitment & Treatment Support
* Slot fitment check
* Coil insertion support
* Lead preparation
* Varnishing / impregnation support
* VPI treatment, where applicable
* Baking / curing
Send Coil or Machine Details for Technical Review
Share coil sample photos, machine nameplate, rating, voltage, dimensions, fault condition and required timeline for a technical response.
Call PEI Team
9610447170
7678133758
Address
F-50,Opp. Multimetals Ltd., Chambal Industrial Area, Kota, Rajasthan - 324003
