Overview
Current transformers (CTs) are divided into outdoor and indoor types. Indoor CTs use epoxy cast insulation and are widely applied for current measurement, commercial energy accounting, and relay protection in AC power grids with a nominal voltage of up to 12 kV, 24 kV, or 40.5 kV and a frequency of 50 Hz or 60 Hz.
Operating Conditions
Nominal insulation level: 40.5/95/185 kV
Nominal secondary current: 5 A or 1 A (adjustable)
Nominal frequency: 50 Hz / 60 Hz (adaptive)
Ambient temperature: from - 5°C to +40°C (operating range)
Installation altitude: ≤1500 m (standard conditions)
Compliance with standards: GB/T 20840.1, GB 20840.2
Main Technical parameter
