Resin Cast Three Phase Outdoor Instrument Current Transformer Protection Zero Phase 5P20
The outdoor instrument current transformers LZZW-33 are fully enclosed and cast in epoxy resin. Instrument transformer is equipped with one core and coil assembly rated for measurement and protection, and then output multi ratio. The current transformers are designed for electric power systems of 50Hz/60Hz rated frequency and 35kV rated voltage. They are used for outdoor mounting. The performances of the products meet standards IEC60044-1, IEC61869-2 and ANSI/IEEE C57.13. The products are applied to metering electric energy, voltage controlling and relay protection.
Current transformers are designed to provide a scaled down replica of the current in the MV line and isolate the measuring instruments, meters, relays, etc. from the power circuit. GFUVE CR/CP/CE series are dry type outdoor service current Transformers rated for use on electrical line systems from 5kV up to 69kV. The CR/CP/CE units are IEEE, CAN/CSA, IEC compliant.
Instrument transformers translate the currents and voltages of the M.V. lines to values, which are measurable by meters and protections. GFUVE offers a wide range that covers all our customers' needs. Current, voltage and combined transformers, dry or oil-paper insulation up to 72.5 kV.
The current transformers match 35~1000kV high voltage switchgears are including the current transformers for outdoor of busbar going through with the stainless steel or aluminium cases, secondary windings with the insulating material wound, casted by epoxy resin with the flanges, installed with the enclosures and so on. LZZW-33 outdoor current transformer is casting resin insulated, pillar structure, with protective class and fully enclosed. It is used for metering electric energy and current monitoring, relay protection in the electrical system of rated frequency 50/60Hz rated voltage 33 kV. It can be used for medial voltage AIS, or can be used for medial voltage switchgears. They can operate in all kinds of environments (such as wide range temperature (-50~60℃), high altitude, high humidity, high pollution or salt).
Design 30 years life
Class 0.2s or 0.5s
Standard IEC 61869-2
Rated current from 10 to 2000 A
Tin plated copper primary terminals