We offer oil cooled servo stabilizer . Capacity:1 kva 25 kva 1ph air cooled : 3 kva 100 kva 3ph air cooled :100 kva 1500 kva 3ph oil cooled input voltage: 170v 270v 1ph ac : 340v 460v 3ph output voltage:200v 220v 230v 1ph : 380v 400v 415v 3ph output voltage regulation:+ 1% at no-load to full-load. operating frequency: 47 hz 53 hz system operation: un-balanced 4 wires speed of correction: 35vsec phase to neutral wave form distortion: nil output wave form: true reproduction of input insulation: class b, f & h operating temperature: 0 c - 45 c ambient construction: is-9815 over load capacity: 120% for 10 min short ckt period & percentage: 300% for 250 m.sec