Ct s are instrument transformers used for converting primary current into a reduced secondary current for use with meters relays control equipment and other instruments.
Low voltage current transformer metering.
These low voltage potential transformers 468 460 2vt469 2vt460 3vtl and 3vtn are generally housed in low voltage switchgears switchboards or motor control centers and provide the necessary voltage signals to the metering device that displays the primary system voltage value for monitoring the condition of the overall electrical system.
High voltage current transformers are mounted on porcelain or polymer insulators to isolate them from the ground.
Low voltage single ratio metering current transformers are either a ring type or plastic molded case.
The importance of instrument transformer tests is often underestimated.
The portfolio also includes line traps and digital instrument transformers.
Split core current transformers either have a two part core or a core with a removable section.
Metering current transformers cts are used with the measuring instruments such as ammeters voltmeters kilowatt hour meters etc to.
The current transformer c t.
Current and voltage measurements from 0 6 kv to 48 kv for the protection and monitoring of medium voltage power systems.
This is why it is necessary to match the respective currents and voltages to the values appropriate to connected measuring protection and control.
Current transformer shapes and sizes vary depending on the end user or switch gear manufacturer.
The portfolio of instrument transformers ranges from low voltage at 600 v suitable for industrial and high accuracy revenue metering all the way up to high voltage at 1 200 kv.
The range of electric values in power supply systems is very extensive.
The most common usage of instrument transformers is to operate instruments or metering from high voltage or high current circuits safely isolating secondary control circuity from the high voltages or currents.
Isolate the instruments from the power circuits standardise the instruments usually at 5 amps or 1 amp the scale of the instrument according to the ct ratio then becomes the only non standard feature of.
Instrument transformers are high accuracy class electrical devices used to isolate or transform voltage or current levels.
Current transformers play an important role in the monitoring and protection of electrical power systems.