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Poised For An Electric Future | info@shreemfibrotech.com
SHREEM FIBROTECH Pvt. Ltd. • Engineered Insulators
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Solid Dielectric Insulation & High-Voltage APG Casting

Poised For An
Electric Future

Shreem Fibrotech engineers precision epoxy cast bushings, post support insulators, GIS barriers, and composite components built to deliver uncompromising dielectric strength and long-term grid reliability.

Browse Insulator Catalog All 12 Product Lines
765 kV
Build Readiness
< 5 pC
Partial Discharge
100% APG
Vacuum Cast
Post Support Insulators APG Cast
Slide 01 • Medium Voltage
Series: SFT-PSI (12kV – 36kV)

APG Cast Post Support Insulators

Engineered with heavy creepage sheds and embedded blind brass inserts to anchor busbars against violent dynamic short-circuit electrodynamic stresses.

Cantilever: 4–20 kN PD: < 5 pC
RMU Bushings SF6 and Oil
Slide 02 • Hermetic Interface
Series: SFT-RMU (630A / 1250A)

RMU Bushings (SF6 & Oil Insulated)

EN 50181 Type-C plug-in interface equipped with built-in capacitive divider screens for continuous VPIS voltage detection and helium leak proofing.

Leak: < 10⁻⁶ mbar·l/s EN 50181 Type C
GIS Conical Insulator Assembly
Slide 03 • Gas-Insulated Substations
Series: SFT-GIS (HV / MV)

GIS Conical Barriers & Termination Bushings

Ultra-clean cycloaliphatic casting designed to form high-integrity pressure partition barriers and mechanical link rods in compact GIS substations.

Hydraulic Tested: 15 bar Zero Surface Flashover
Cast Resin Dry Type Transformer CRT
Slide 04 • Heavy Assemblies
Series: SFT-CRT (Up to 5 MVA)

Cast Resin Dry-Type Transformers

Class F / H vacuum encapsulated windings. Fire-retardant, self-extinguishing and moisture-impervious distribution systems for critical commercial and industrial loads.

Climate Class: E2-C2-F1 Zero Oil Hazard
01 / 04
Featured Product Line

High-Performance Epoxy Cast Insulators & Bushings

Manufactured using state-of-the-art Automatic Pressure Gelation (APG) plants. Designed with customized creepage paths, high cantilever resistance, and zero internal void entrapment.

Post Support Insulator 12kV / 24kV / 36kV
Model: SFT-PSI Series

Indoor Post Support Insulators

Engineered with embedded brass/steel blind inserts. High electrodynamic shock resistance during peak short-circuit currents for indoor switchboards.

Cantilever 4 kN – 20 kN
PD Level < 5 pC at 1.2 Un
Standard: IEC 60273 Spec Sheet
RMU SF6 / Oil Bushing EN 50181 Type C
Model: SFT-RMU Series

RMU Bushings (SF6 & Oil Insulated)

Hermetically molded for compact Ring Main Units. Equipped with capacitive divider screens for continuous voltage indication (VPIS compatibility).

Rated Current 630A / 1250A
Gas Leak Rate < 10⁻⁶ mbar·l/s
Standard: IEC 60137 Spec Sheet
VCB Interrupter Housing 11kV – 33kV
Model: SFT-MONO Series

VCB Monobloc & Spout Insulators

Monolithic 3-phase molded housings offering superior arc-quenching containment and creepage protection in medium voltage vacuum circuit breakers.

Impulse (BIL) Up to 170 kVp
Insulation Class F / H
Standard: IEC 62271 Spec Sheet

Custom Tooling, Shed Geometries & Bushings

Our engineering team designs custom molds and rapid prototypes for proprietary switchgear OEM platforms.

Upload 2D / 3D CAD Drawing
Manufacturing Catalog

Comprehensive Dielectric & Component Verticals

Explore our full industrial spectrum engineered for high-voltage substations, renewables, and heavy switchgear assemblies.

Distribution & Power Transformers

Cast resin & dry-type zero-fire hazard transformers.

  • • Cast Resin Transformer (CRT)
  • • Vacuum Pressure Impregnated (VPI)
  • • Pad-Mounted & Oil-Cooled IDT Units
  • • Compact Substation (CSS) Packages

GIS Components (HV & MV)

Gas-insulated switchgear critical dielectrics.

  • • Conical Insulators & Pull Rods
  • • Cable Termination Bushings
  • • MV Innercone Bushings
  • • GIS Integrated Current & Voltage Sensors

Instrument Transformers (HV/MV/LV)

Metering and protection CT/VT units.

  • • Indoor Bar Primary & Window Type CT
  • • Fix Type & Gun Type Voltage Transformers
  • • Outdoor Resin Cast Wound CT/VT
  • • Plastic Case & Tape Wound Low Voltage CTs

Transformer Bushings

Heavy-ampere terminal feedthroughs and oil barriers.

  • • OIP Condenser Bushing
  • • Oil-to-Oil Bushings & Wall-Through Bushings
  • • High Current LV & HV Transformer Bushings
  • • Neutral Support Insulators

Voltage Detecting Systems (VPIS / VDI)

Operator safety interlocking & fault indication.

  • • Voltage Indicating Units (VIU 12A / LCD)
  • • Phase Comparator & Fault Passage Indicator (FPI)
  • • Voltage Presence Indicating System (VPIS)
  • • Voltage Detecting Insulators (VDI)

SMC, DMC & Actuation Coils

Thermoset composites and electromagnetic actuators.

  • • Filament Wound Tubes & Guide Plates
  • • Monobloc & OLTC Components
  • • Linear & Rotary Solenoids / Actuators
  • • Circuit Breaker Coils & Proportional Valves
Manufacturing Rigor

Precision Automatic Pressure Gelation (APG)

Void-free casting is paramount in medium and high voltage insulation. Our APG lines utilize automated micro-dosing and continuous pressurized feed under vacuum, ensuring zero partial discharge throughout the product lifetime.

01

Continuous Pressure Feed

Direct mold compensation eliminates internal shrinkage cavities and microscopic vacuum pockets.

02

Shielded Routine Partial Discharge Testing

Every insulator undergoes power-frequency and sensitive partial discharge screening in Faraday test cages.

03

Thermal Shock & Cantilever Load Testing

Tested against extreme thermal cycling (-40°C to +120°C) and structural cantilever load verification.

APG Machine Line

APG Clamping Presses

HV Shielded Test Bay

High Voltage Screening Cage

CMM Metrology & Verification

CMM Precision Metrology

Coil & Bushing Assembly

Bushing Winding & Tooling

Engineering Inquiry

Request Spec Sheets, CAD Drawings & Type-Test Reports

Connect with Shreem Fibrotech application engineers. Submit custom voltage, cantilever load, or drawing requirements.