Introduce: The combined instrument transformer offers the station designer the ability of being able to accommodate the current transformer and the voltage transformer in one free-standing unit. This allows optimum use of substation space while yielding cost savings by elimination of one set of mounting pads and support structures. In addition, installation time is greatly reduced.

Combined Instrument Transformers are commonly used in the electrical power industry when the space auf the substation is limited and are available with either oil or SF6 dielectric systems.


Main Features
1. Explosion proof design with compressible SF6 insulation system and rupture disc
2. Excellent seismic performance
3. Head type design with VT section located on top of CT
4. Cast aluminum housing
5. Low weight and compact SF6 design
6. Excellent short circuit performance/capability
7. Ferro resonance free design with or without external damping device depending of client substation layout
8. Essentially unaffected by external stray magnetic fields
9. Optimal field grading accomplished by a fine condenser grading system (from 245 kV)
10. Stable accuracy over a long period of time
11. Remote supervision of insulation condition by monitoring internal gas density

Technical parameters:
1.72.5 to 800 kV
2. Head type design with VT section location on top of CT
3. SF6 insulation
4. Composite insulator
5. Available in compliance with all world international standards
6. The single section high voltage coil (not cascaded) of the voltage transformer section enables designs at highest voltage levels
7. Combines all features of the single units
8. Provides the advantages of a current and inductive voltage transformer
At a competitive price
9. Benefits in handling, installation and maintenance cost
10. Less foundation space required.