are wounded separately with electrostatic shield in between. This shield is connected to earth. The isolation transformer helps in rerouting unwanted voltages to sink in earth, it protects sophisticated electronic & electrical equipments such as CNC Machines, Computers, Communication equipments etc. against any transients & harmful electrical noise, spikes, surges etc. The isolation transformer is available in different levels of noise attenuation capabilities. The most commonly used are 100 & 120db. SPECIFICATIONS: CAPACITY: 1KVA to 100KVA Input Voltage: 415vac / 3 phase. Output Voltage: 200vac, 220vac, 380vac, 400vac, 415vac, 440vac / 3 phase Connections: Delta-Delta, Delta Star, Star Delta, Star-Star Insulation: Class F Regulation: Better than 3% Dielectric Strength: 2.5KV for 1 min. Resistance: Greater than 500 mili ohms. Leakage Current: Less than 30 micro amp. Power factor: 0.8
In this type of transformer primary and secondary windings |