Medium Voltage Indoor Combined Transformers up to 25kV
ARTECHE KCB series are dry type indoor service dead-front combination CT-PT.
The core is encapsulated with Type B epoxy resin which provides excellent internal dielectric properties and mechanical strength, ensuring a long mechanical and electrical life. The transformer is maintenance free.
The entire surface of the transformer is coated with a conductive layer that is intended to be solidly grounded when energized. This allows for compact mounting inside switchgear or enclosures.
The core is built with high permeability grain oriented silicon steel laminations for low losses. The windings are copper wire with copper plate double isolation. The concentric distribution of the coils prevents magnetic flux leakage, achieving greater accuracy and higher capacity to withstand mechanical stresses in adverse operating conditions.
Partial Discharge measurements exceed the IEEE, CAN/CSA and IEC requirements.
The primary terminals are standard 200 or 600 Ampere rated dead-front bushing well and can be connected using IEEE 368 standard inserts and elbow connectors.
The secondary terminals are 1/4” slotted screws with flat and lock washers located inside a metallic terminal cover with two 1” NPT conduit hubs. The ground terminal is provided inside the terminal cover along with a manually operated CT secondary shorting device for safety purposes.