A TRANSFORMER RECTIFIER. DESIGNED FOR USE WITH AN ELECTROSTATIC PRECIPITATOR (FILTRATION APARATUS). CONSTRUCTED OF SHEET STEEL WITH A WEATHERPROOF COATING. WITH AN OIL PRESSURE RELEASE VALVE FITTED FOR SAFETY. FEATURES: FABRICATED AND PAINTED STEEL TANK; HIGH VOLTAGE STEP UP TRANSFORMER WITH 40 PERCENT IMPEDANCE; VOLTAGE DIVIDER; HIGH FREQUENCY AC CHOKE; HIGH VOLTAGE RECTIFIER; INPUT AND FEEDBACK BUSHINGS; CALIBRATION UNIT; OIL TEMPERATURE INDICATOR; AND OIL LEVEL INDICATOR. SPECIFICATIONS: SECONDARY VOLTAGE - 25 KV TO 150 KV; PRIMARY VOLTAGE - 220 V TO 700 V, 50 OR 60 HZ; SECONDARY CURRENT - 25 MA TO 4000 MA DC ESP; PRIMARY CURRENT - 5 A TO 600 A; OIL FILLED AND NATURAL CONVECTION COOLED (ONAN).

CLASSIFICATION IS DETERMINED ACCORDING TO GIRS 1 AND 6. NOTE 2(A) TO SECTION XVI ALSO APPLIES. CN 8504 40 81: ELECTRICAL TRANSFORMERS, STATIC CONVERTERS (FOR EXAMPLE, RECTIFIERS) AND INDUCTORS; STATIC CONVERTERS; RECTIFIERS; OTHER