Many alternating-current rotating electric machines are designed to have multiturn formwound stator coils. In these cases, the winding has two separate but interrelated insulating barriers: one (turn insulation) between the…
Suggestions are made for testing the dielectric strength of the insulation separating the various turns from each other within multiturn form-wound coils to determine their acceptability. Typical ratings of machines…
Large stationary lead storage batteries play an ever-increasing role in substation and generating station control and power systems and in providing the back-up energy for emergencies. This recommended practice fulfills…
Superseded by 484-2002. Recommended design practices and procedures for storage, location, mounting, ventilation, instrumentation, preassembly, assembly, and charging of vented lead-acid batteries are provided. Required safety practices are also included.…
Methods for defining the dc load in a generating station or a substation and for sizing a lead storage battery to supply that load are described. Some factors relating to…
Methods for defining the dc load and for sizing a lead-acid battery to supply that load for stationary battery applications in full float operations are described. Some factors relating to…
Superseded by 487-1992. Workable methods for protecting wire-line communication circuits entering power stations are presented. This document covers: the electric power station environment; protection apparatus; services types, reliability, service performance…
Workable methods for protecting wire-line communication circuits entering power stations are presented. This document covers: the electric power station environment; protection apparatus; service types, reliability, service performance objective classifications, and…
Workable methods for protecting wire-line communication circuits entering electric supply locations are presented. This document covers: the electric supply location environment; protection apparatus; services types, reliability, service performance objective classifications,…
