CA Series High Voltage Current Transformers

CA, UT, KA, and DFK series instrument transformers deliver precise current and voltage measurement for protection, control, and revenue metering from 72.5 kV up to 800 kV. Oil-paper insulated designs offer compact footprints, configurable ratios and windings, and compliance with IEC, IEEE, and ANSI standards. Features include high accuracy to 0.1% and short-circuit withstand up to 120 kA/1s for AIS, GIS, and digital substations.

Product Overview

• High-voltage current, voltage, combined, and capacitive transformers up to 800 kV.
• Oil-paper insulation, compact designs, harsh-environment resilience; porcelain or polymer insulators.
• Metering class 0.1 accuracy; short-circuit withstand 120 kA/1s rating.
• Suited for AIS & GIS substations, digital substations, interconnection points.

Engineered instrument transformers deliver precise measurement and protection across transmission and industrial power systems. Oil-paper insulated designs offer compact footprints, harsh-environment durability, and configurable ratios, cores, and windings. Metering accuracy to 0.1%, short-circuit withstand 120 kA/1s, and IEC, IEEE, ANSI compliance support AIS, GIS, and digital substations for worldwide applications.

Target Market

Ideal for utility transmission and distribution operators, substation and protection engineers, metering and revenue assurance teams, EPC firms, and heavy industry electrical teams in oil and gas, mining, manufacturing, rail, airports, and data centers. Deployed at substations, interconnection points, and renewable integration sites requiring compact, standards-compliant measurement.