RY2-2012-26-1110-L

The RY2-2012-26-1110-L is an Instrument Transformer (IT) used for protection, measurement and control in a variety of electrical applications. The RY2-2012-26-1110-L is a combined 1-phase, 2-wire transformer. It has an electronic current transformer with an integrated voltage divider and is suitable for rated voltage up to 26 kV.

The RY2-2012-26-1110-L design is based on an open-delta winding configuration which is connected to a two-dimensional analysis network composed of three capacitors, two resistors and an inductive reactance. The use of an open-delta winding architecture makes it possible to minimize the series capacitive impedance from primary to secondary and thus maintain a consistent ratio over the operating range. This in turn makes the RY2-2012-26-1110-L suitable for use even in harsh environments.

The first principle of operation of the RY2-2012-26-1110-L is the electronic current transformer. This is essentially a two-terminal device which transfers the primary current through its winding to the secondary. The RY2-2012-26-1110-L is designed to operate with either one or two wires, depending on the application. When two wires are used, the transformer will transfer the primary current from the first wire to the second and from the second wire back to the first.

The second principle of operation of the RY2-2012-26-1110-L is the integrated voltage divider. This allows the voltage at the secondary to be reduced for use in lower voltage applications such as in instrument panels. The voltage is reduced by an adjustable resistor, connected to the primary, and further divided in two directions by a capacitor connected to the secondary.

In addition to the electronic current transformer and integrated voltage divider, the RY2-2012-26-1110-L also has an inductive reactance to provide additional protection. The equivalent circuit model consists of three capacitors and two resistors. The Capacitors C1 and C2 form the voltage divider to provide regulation of the secondary voltage and the resistor R1 is used to regulate the current. The Inductive reactance Xl is used to entrap high frequency disturbances and reduce harmonic distortion.

The RY2-2012-26-1110-L is used in a variety of applications such as transformers protection, substation protection, power system protection, electrical motor control, variable speed drives, and power system metering. Its combination of open-delta winding architecture, electronic current transformer, integrated voltage divider, and inductive reactance offers superior performance and reliability for many of these applications.

In conclusion, the RY2-2012-26-1110-L is a versatile Instrument Transformer suitable for a variety of applications. Its combination of an open-delta winding architecture, electronic current transformer, integrated voltage divider, and inductive reactance provide superior performance and reliability.