Gemini Instratech Private Limited manufactures Outdoor, OIP Insulated Current / Voltage Transformers. Gemini Instratech Private Limited is an ISO 9001:2000 certified company. The Company also manufactures various types of current and voltage transformers. The Outdoor, Oil Impregnated Paper - OIP Insulated Current / Voltage Transformers have true hermetic sealing. The Outdoor, Oil Impregnated Paper - OIP Insulated Current / Voltage Transformers have low eddy current heating even at higher currents and absorbs mechanical shocks on primary terminals. These Transformers have lumped primary winding with rectangular copper strips and crimped joints on secondary leads.