T&D Systems > Worldwide Presence > TTDI > Switchgears > Voltage Transformers (Oil Filled)

Voltage Transformers (Oil Filled)

(12 kV to 245 kV)

Hermetically Sealed Electromagnetic Voltage Transformers (Oil Filled) have a robust design with feasibility to achieve desired Accuracy class and Output. Our entire range of Voltage Transformers are designed and type tested as per relevant IS & IEC standards. We can also supply the Voltage Transformers with polymer insulators upon request.

These products are being manufactured at TTDI switchgear plant (Rudraram, Hyderabad), where TTDI is known for quality and consistency.

Voltage Transformers (Oil Filled)

Voltage Transformers

Type 3 M 12/M 12 M 36 M 72.5 M 145 M 245
Rated Voltage 11 kV 33 kV 66 kV 132 kV 220 kV
Highest System Voltage 12 kV 36 kV 72.5 kV 145 kV 245 kV
One minute power frequency voltage 28 kV rms 70 kV rms 140 kV rms 275 kV rms 460 kV rms
Lightning impulse voltage 75 kV peak 170 kV peak 325 kV peak 650 kV peak 1050 kV peak
Rated frequency 50 Hz 50 Hz 50 Hz 50 Hz 50 Hz
Rated voltage factor *1.2 Continuous & 1.5 for 30 sec *1.2 Continuous & 1.5 for 30 sec *1.2 Continuous & 1.5 for 30 sec *1.2 Continuous & 1.5 for 30 sec *1.2 Continuous & 1.5 for 30 sec
Total Creepage distance **300 mm *900 mm **1813 mm **3625 mm **6125 mm
Total simultaneous burden As desired As desired As desired As desired As desired
No. of secondary windings & burden As desired As desired As desired As desired As desired

* Voltage factor with 1.9 for 30 sec & 1.9 for 8 hrs can also be offered on request.

** Other Creepage distances can also be offered on specific request.

Technical Parameters of the products contained in this website are generic in nature. Please contact us for any Latest / Updated / Specific Information.