Tag Archives: IEEE

IEEE C57.121-1988

IEEE Guide for Acceptance and Maintenance of Less Flammable Hydrocarbon Fluid in Transformers

Published by: 1989-12-15 / 1989-12-15 / 23 pages

Scope

This guide recommends tests and evaluation procedures, as well as criteria and methods of maintenance for Less Flammable Hydrocarbon (LFH) transformer insulating fluids. These are also known as High Molecular Weight Hydrocarbon (HMWH) fluids. HMWH dielectric fluids are hereby defined as those fluids having an ASTM D92 fire point of 300 C or greater, being primarily composed of, but not restricted to, hydrocarbons. These fluids meet the requirements of ANSI/NFPA 70-1990, National Electrical Code [1]1 Article 450-23 as a less flammable dielectric for use in indoor applications when used in properly designed and installed transformers. Ester- and silicone-based fluids are not covered by this guide. Methods of reconditioning LFH fluids are also described. It is not the intent of this guide to address retro-filling transformers with LFH fluids. Any such substitution of fluids should only be performed after consultation with the manufacturers of fluid and equipment. Where instructions given by the transformer or fluid manufacturers differ from those given in this guide, the manufacturer’s instructions are to be given preference.

Purpose

The purpose of this guide is to assist the transformer operator in evaluating and processing LFH fluids received in new transformers, as received from the fluid manufacturer for filling transformers, and as processed into such equipment. It also assists the operator in maintaining the fluid in serviceable condition. This guide, therefore, recommends standard tests and evaluation procedures, methods of reconditioning and reclaiming LFH fluids, and the analysis results at which these processes become necessary. It will also address the routines for restoring resistance to oxidation, where desired, by the addition of inhibitors.

Abstract

New IEEE Standard – Inactive – Superseded.

IEEE C57.121-1988, IEEE Guide for Acceptance and Maintenance of Less Flammable Hydrocarbon Fluid in Transformers, covers the evaluation and handling procedures for less flammable hydrocarbon transformer insulating fluids. Its purpose is to assist the transformer operator in receiving new fluids, filling transformers, and maintaining the fluids in serviceable condition.

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IEEE/ISO/IEC 11073-20601-2016

ISO/IEC/IEEE International Standard – Health Informatics — Personal Health Device Communication – Part 20601: Application Profile – Optimized Exchange Protocol

Published by: 2016-06-15 / 2016-06-15 / 252 pages

Scope

Within the context of the ISO/IEEE 11073 personal health device standard family, this standard defines an optimized exchange protocol and modeling techniques to be used by implementers of personal health devices to create interoperability between device types and vendors. This standard establishes a common framework for an abstract model of personal health data available in transport-independent transfer syntax required to establish logical connections between systems and to provide presentation capabilities and services needed to perform communication tasks. The protocol is optimized to personal health usage requirements and leverages commonly used methods and tools wherever possible.

Purpose

This standard addresses a need for an openly defined, independent standard for controlling information exchange to and from personal health devices and managers (e.g., cell phones, personal computers, personal health appliances, and set top boxes). Interoperability is key to growing the potential market for these devices and enabling people to be better informed participants in the management of their health.

Abstract

– Draft for an Adoption.

Within the context of the ISO/IEEE 11073 family of standards for device communication, this standard defines a common framework for making an abstract model of personal health data available in transport-independent transfer syntax required to establish logical connections between systems and to provide presentation capabilities and services needed to perform communication tasks. The protocol is optimized to personal health usage requirements and leverages commonly used methods and tools wherever possible.

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IEEE 730.1-1989

IEEE Standard for Software Quality Assurance Plans

Published by: 1986-10-10 / 1986-10-10 / 13 pages

Scope

The purpose of this standard is to provide uniform, minimum acceptable requirements for preparation and content of Software Quality Assurance Plans (SQAPs).In considering adoption of this standard, regulatory bodies should be aware that specific application of this standard may already be covered by one or more IEEE or ANSI standards documents relating to quality assurance, definitions, or other matters. It is not the purpose of this document to supersede, revise or amend existing standards directed to specific industries or applications.This standard applies to the development and maintenance of critical software. For non-critical software, or for software already developed, a subset of the requirements of this standard may be applied.The existence of this standard should not be construed to prohibit additional content in a SQAP. An assessment should be made for the specific software item to assure adequacy of coverage. Where this standard is invoked for an organization or project engaged in producing several software items, the applicability of the standard should be specified for each of the software items.

Abstract

Revision Standard – Inactive – Superseded.

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IEEE PC57.12.10

IEEE Draft Standard Requirements for Liquid-Immersed Power Transformers

Published by: / 56 pages

Scope

This voluntary consensus standard sets forth the requirements for power transformer application. This standard is intended to be used as a basis for performance, interchangeability, and safety of the equipment covered and to assist in the proper selection of such equipment.This document is a product standard that covers certain electrical, dimensional, and mechanical characteristics of 50 Hz and 60 Hz, liquid-immersed power transformers and autotransformers. Such powertransformers may be remotely or integrally associated with either primary switchgear or substations, or both, for step-down or step-up purposes and base rated as follows: 833 kVA and above single-phase,750 kVA and above three-phase.This standard applies to all liquid-immersed power transformers and autotransformers that do not belong to the following types of apparatus:a) Instrument transformersb) Step voltage and induction voltage regulatorsc) Arc-furnace transformersd) Rectifier transformerse) Specialty transformersf) Grounding transformersg) Mobile transformersh) Mine transformers

Abstract

Revision Standard – Unapproved Draft.

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IEEE PC57.19.01

IEEE Draft Standard Performance Characteristics and Dimensions for Outdoor Apparatus Bushings

Published by: / 26 pages

Scope

This standard covers electrical, dimensional, and related requirements for outdoor power apparatus bushings that have basic impulse insulation levels (BILs) of 150 kV and above. It provides specific values for dimensional and related requirements that are to be interpreted, measured, or tested in accordance with IEEE Std C57.19.00. Bushings covered by this standard are intended for use in free air as components of liquid-filled transformers and reactors.

Purpose

To standardize the dimensions, ratings, test levels and performance characteristics of outdoor power apparatus bushings having insulation levels (BILs) 110 kV and above.

Abstract

Revision Standard – Unapproved Draft.

Electrical, dimensional, and related requirements 1 for power transformer and reactor bushings that have basic impulse insulation levels (BILs) of 150 kV and above are covered. Specific values for dimensional and related requirements that are to be interpreted, measured, or tested, in accordance with IEEE Std C57.19.00, are provided.

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IEEE P1791

IEEE Draft Recommended Practice for Terminology Used for Direct Current Electric Transit Overhead Contact Systems

Published by: / 52 pages

Scope

This recommended practice defines terms used for direct current electric transit overhead contact systems.

Purpose

This recommended practice provides uniform terminology and definition of terms used for direct current electric transit overhead contact systems.

Abstract

New IEEE Standard – Unapproved Draft.

This amendment to IEEE Std 802.1Q-2014 describes the use of traffic scheduling and per-stream filtering and policing to support cyclic queuing and forwarding.

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IEEE 802.5r,j-1997

IEEE Standard for Information technology — Telecommunications and information exchange between systems — Local and metropolitan area networks –Specific requirements — Part 5: Token ring access method and physical layer specifications — Amendment 1: Dedicated token ring operation and fibre optic

Published by: 1998-07-13 / 1998-07-13 / 420 pages

Scope

Define dedicated attachment of existing token ring stations. In addition, expand the station’s capability to simultaneously transmit and receive independent data streams for all frames. define station concentrator functions in sufficient detail to produce an interface between station and concentrator that assures interworking.

Purpose

As presently defined, each token ring station shares the ring’s total available bandwidth. This dedicated attachment extension to 802.5-1995 will provide a significant increase in available bandwidth to each station. Additionally, it will decouple the operating speed of the concentrator from its attaching stations.

Abstract

Amendment Standard – Inactive – Withdrawn.

This amendment to Local and Metropolitan Area Network standard, ISO/IEC 8802-5 : 1998, is part of a family of local area network (LAN) standards dealing with the physical and data link layers as defined by the ISO/IEC Open Systems Interconnection Basic Reference Model. The requirements for dedicated token ring (DTR) operation are specified, including the changes and additions to the Medium Access Control (MAC) layer to provide for an additional full-duplex mode of operation (switching), and for interconnection of shared LAN segments to switch ports. Also specified are the characteristics of a fibre optic interface for connecting a 4 Mbit/s or 16 Mbit/s token ring station to the trunk coupling unit (TCU) of a token ring, including station, port, and channel requirements. Fibre optic trunk signaling recommendations are also made.

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IEEE PC37.100.5

IEEE Draft Standard for Definitions of High Voltage Circuit Breakers Above 1000 Vac and 3200 Vdc, and Reclosers and Other Distribution Equipment from 1000 Vac to 38,000 Vac

Published by: / 46 pages

Scope

The terms and definitions in the standard are intended to encompass the products within the scope of the C37 list of power switchgear standards for high-voltage circuit breakers (above 1000 Vac and 3200 Vdc) and for reclosers and other distribution equipment (above 1000 Vac to 38,000 Vac) as used primarily in connection with generation, transmission, distribution, and conversion of electric power.

Purpose

The definitions of terms and explanatory notes relating thereto contained in this standard are intended for the sole purpose of establishing only those meanings of terms used in standards for high-voltage circuit breakers above 1000 Vac and 3200 Vdc, and distribution switching and overcurrent protective equipment including: reclosers, sectionalizers, fault interrupters, capacitor switches, pad-mounted gear, and submersible gear within the C37 series of standards. In some instances, terms and definitions that are not identical to those in this standard have been developed by other branches of industry. Where this situation exists, the definitions in this standard shall be used for power switchgear within the C37 series of standards. Terms which are essential to the understanding of a topic or requirement written in a C37 standard document, and which are not used in other standards, may be listed and defined in that standard and referenced in this document.

Abstract

New IEEE Standard – Unapproved Draft.

The terms and definitions in the standard are intended to encompass the products within the scope of the C37 series of power switchgear standards for high-voltage circuit breakers (above 1000 Vac and 3200 Vdc) and for reclosers and other distribution equipment (above 1000 Vac to 38,000 Vac) as used primarily in connection with generation, transmission, distribution, and conversion of electric power. The definitions of terms and explanatory notes relating thereto contained in this standard are not intended to embrace all possible meanings of the terms. They are intended for the sole purpose of establishing only those meanings of terms used in switchgear standards. They do not purport to embrace other meanings that the terms may properly have when used in connection with other subjects. In some instances, terms and definitions that are not identical to those in this standard have been developed by other branches of industry. Where this situation exists, the definitions in this standard shall be used for power switchgear within the C37 series of standards

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IEEE P61158

IEEE Draft Standard for Industrial Hard Real-Time Communication

Published by: / 389 pages

Scope

Ethernet POWERLINK is a communication profile for Real-Time Ethernet (RTE). It extends Ethernet according to the IEEE 802.3 standard with mechanisms to transfer data with predictable timing and precise synchronisation. The communication profile meets timing demands typical for high performance automation and motion applications. It does not change basic principles of the Fast Ethernet Standard IEEE 802.3 but extends it towards RTE. Thus it is possible to leverage and continue to use any standard Ethernet silicon, infrastructure component or test and measurement equipment like a network analyzer.Note that this standard does not add or otherwise change EPSG DS 301.

Abstract

New IEEE Standard – Unapproved Draft.

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IEEE/ANSI C57.12.24-1994

American National Standard for Transformers– Underground-Type Three-Phase Distribution Transformers, 2500 kVA and Smaller, High Voltage, 34 500 GrdY/19 920 Volts and Below, Low Voltage, 480 Volts and Below – Requirements

Published by: 1994-05-24 / 1994-05-24 / 18 pages

Scope

1.1 This standard is intended to set forth characteristics relating to performance, limited electrical and mechanical interchangeability, and safety of the equipment described, and to assist in the proper selection of such equipment.NOTE — Refer to the latest Federal Regulations concerning polychlorinated biphenyls (PCB) contamination in transformers.1.2 This standard describes certain electrical and mechanical characteristics and takes into consideration certain safety features of three-phase, 60-Hz, liquid-immersed, self-cooled, underground-type distribution transformers rated 2500 kVA and smaller with high voltages of 34 500GrdY/19 920 volts and below and with low voltages of 480 volts and below. These transformers are generally used for step-down purposes from an underground primary cable supply and are suitable for occasional submerged operation.1.3 This standard does not cover the electrical and mechanical requirements of any accessory devices that may be supplied with the transformer.

Abstract

New IEEE Standard – Inactive – Withdrawn.

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