Power transformers - Standard requirements, terminology, and test code for step-voltage regulators Ingestion-build-63114 Contents of BS ISO 20938:

Contents of BS ISO 20938:

Installation details

BS EN 1196:1998

Who is ISO 22320 - Guidelines for incident management for

how the design needs to be modified

Power transformers - Standard requirements, terminology, and test code for step-voltage regulators Ingestion-build-63114 Contents of BS ISO 20938:What is this standard about? This document describes electrical, mechanical and test requirements of liquid immersed, single and three phase, 50 Hz and 60 Hz, self and forced air cooled, distribution, overhead and substation, step voltage regulators, 1 000 kVA (single phase units) or 3 000 kVA (threephase units) and smaller, 34 500 volts and below (2 400 V minimum) and their associated controls. Requirements, references and definitions relevant to