Nippen-ithv is a universal portable, multi-purpose test instrument for checking insulation and conductance during simulated operating conditions in high tension electrical and electronic fields. Ithv can be applied for electrical maintenance of rotating plant machinery, distribution networks, communication cables, insulators and servicing of control and switching equipments, transformers and industrial installations. The ithv is a versatile, robust and highly reliable insulation tester recommended for every electrical engineer. These high voltage insulations are available with salient features like highly sensitive cross coil movement with wide scale conforming to is: 2992-1987; silent and smooth brush less ac generator; high precision, individually calibrated scale, guard terminal for eliminating surface leakage during ir measurement; mechanical infinity adjust to obtain maximum accuracy; approx 3 sec quick response; collapsible handle goes into the case when not in use and rugged polished seasoned wood case with detachable lid and carrying handle.