LZZBW‑35A 35kV Instrument CT Epoxy Cast Current Transformer

Model and its meaning

Summarize

The voltage on the high-voltage side of power systems (such as 10kV, 110kV, and 220kV), is extremely high. Directly measuring or connecting these voltages to control and protection devices poses serious safety risks. A current transformer's primary winding is connected in series with the high-voltage circuit, while its secondary winding is connected to measuring instruments (such as ammeters) and relay protection devices on the low-voltage side. Current signals are transmitted through the principle of electromagnetic induction. Reliable insulation between the primary and secondary sides effectively blocks high-voltage hazards, preventing them from entering the low-voltage side and potentially damaging equipment or causing electric shock.Achieve electrical isolation between high voltage and low voltage to ensure the safety of personnel and equipment

The LZZBW-35A current transformer is designed for AC power systems with a rated voltage of 35kV and a rated frequency of 50Hz/60Hz. Its core applications include energy metering, current monitoring, and relay protection.

Normal service condition

• Installation location: must be placed outdoors, not indoors.
• Temperature requirements: The maximum ambient temperature cannot exceed 40℃, the minimum cannot be lower than -25℃, and the average temperature of the day must be controlled within 30℃.
• Air conditions: The air in the environment must be clean, without serious dust, dirt and other impurities.

Technical parameter

LZZBW-35A current transformer technical parameter table