MV outdoor instrument transformers insulated with Hydrophobic Cycloaliphatic Epoxy (HCEP) are available to 15 kV. HCEP and Automated Pressure Gelation technology are combined to create a superior product to older CEP technologies. This technology allows for a competitive product with higher quality and reliability.

GE combines superior design and advanced testing with HCEP resin and APG process technology, to produce reliable Outdoor Medium Voltage Instrument Transformers that meet IEEE C57.13 and IEEE C12.11 dimension standards.

Benefits of HCEP over CEP Insulations 

• H (Hydrophobicity) = Less wetting of the surface

Allowing for:

- Lower Leakage Currents = Lower flash-over probability=Better Reliability
- Less Discharge Activity = Less erosion = improved life expectancy 
 

Application 

Features: 

General

• Insulation: Hydrophobic Cycloaliphatic Epoxy (HCEP) 

• Baseplate: Marine grade aluminum  

• Conduit box: Cast aluminum, removable, 1” threaded hubs

• Nameplate: Anodized aluminum

• Mounting: Horizontal, vertical, & inverted mounting options

Electrical 

• Excellent dielectric properties - stable in outdoor humid conditions 

• Enhanced thermal cycle resistance over CEP 

• High resistance to erosion from ultra violet (UV) radiation

• High tracking and arc resistance over CEP

• Corona and Discharge free operation

• Extended service life over CEP

Mechanical 

• HCEP epoxy offers superior weatherability Ideal for outdoor applications

• Excellent water repellent characteristics 

• Compact design

• Low Maintenance