Free Standards Download

IEEE C37.90.3-2001 pdf download IEEE Standard Electrostatic Discharge Tests for Protective Relays 1. Scope This standard specifies design tests for clectrostatic discharge (ESD) tests of protective relays and relaysystems. The object of the type test described in...

IEEE C37.99-2000 pdf download IEEE Guide for the Protection of Shunt Capacitor Banks 4.2.2 Internally fused shunt capacitor banks Figure 2(b) illustrates a typical capacitor bank utilizing internally fused capacitor units. In general, banks employing internally fused...

IEEE C57.12.59-2001 pdf download IEEE Guide for Dry-Type Transformer Through-Fault Current Duration 1.Overview 11 Scope This guide applies to dry-type transformers designated as Category I and Category Il in IEEE StdC57.12.01"-1998.' Category Ill transformers have not been...

IEEE C57.12.91-2001 pdf download IEEE Standard Test Code for Dry-Type Distribution and Power Transformers 1.Scope This standard describes methods for performing tests specified in IEEE Std C57.12.01-1998- and otherreferenced standards applicable to dry-type distribution and power transformers....

IEEE C57.19.01-2000 pdf download IEEE Standard Performance Characteristics and Dimensions for Outdoor Apparatus Bushings 1.Scope This standard covers electrical, dimensional, and related requirements for outdoor power apparatus bushingsthat have basic impulse insulation levels (BILs) of 200 kV...

IEEE C57.127-2000 pdf download IEEE Trial-Use Guide for the Detection of Acoustic Emissions from Partial Discharges in Oil-Immersed Power Transformers 3.1 Sensing transducer The sensor is a piezo-electric displacement transducer operating in its compression mode and has...

IEEE C57.134-2000 pdf download IEEE Guide for Determination of Hottest-Spot Temperature in Dry-Type Transformers 1. Overview 1.1 Scope This guide describes methodologies for determination of the steady-state winding hottest-spot temperaturein dry-type distribution and power transformers with ventilated,...

IEEE C57.136-2000 pdf download IEEE Guide for Sound Level Abatement and Determination for Liquid-Immersed Power Transformers and Shunt Reactors Rated Over 500 kVA 3. Sources of sound 3.1 General characteristics Sound coming from the transformer itself, as...

IEEE C62.37.1-2000 pdf download IEEE Guide for the Application of Thyristor Surge Protective Devices 1.Scope This application guide applies to thyristor surge protective device (thyristor SPD) components used insystems with voltages up to 1000 V rms or...

IEEE C62.43-1999 pdf download IEEE Guide for the Application of Surge Protectors Used in Low-Voltage (Equal to or Less than 1000 V rms or 1200 Vdc) Data, Communications, and Signaling Circuits 1.Scope This guide provides assistance in...