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This guide has been prepared to aid in the application of relays and relaying schemes for protection against stator ground faults on high-impedance grounded generators. The guide is not intended for the selection of generator or ground connection schemes. Differential relaying will...
This signal generator generates a highly stable, continuous wave (CW), and modulated signal. The unit generates amplitude modulation (AM), frequency modulation (FM), phase modulation (ØM), and pulse modulation (PM) signals with internal or external signals for modulation on demand as...
IEC/IEEE 62271-37-013:2015(E)
This standard applies to the dimensions for all types of shaft couplings and shaft runout tolerances for hydraulic turbines and generators. Shafts and couplings included in this standard are used for both horizontal and vertical connections between generators and turbines in...
Methods of describing random instabilities of importance to frequency and time metrology is covered in this standard. Quantities covered include frequency, amplitude, and phase instabilities; spectral densities of frequency, amplitude, and phase fluctuations; and time-domain...
This standard describes the criteria for the application and testing of combustion turbine-generator units as Class 1E standby power supplies in nuclear power generating stations. Figure 1 shows the boundaries of systems and equipment included in the scope of this standard. Site testing is...
The procedures for installation described in this guide apply to all types of synchronous generators and generator/motors rated 5 MVA and above to be coupled to hydraulic turbines or hydraulic pump/turbines having vertical shafts. Purpose Large hydraulic turbine-driven...
This guide contains instructions for modeling synchronous machines in direct- and quadrature-axis equivalent circuits, along with the basic transient and subtransient reactance/time-const
This standard applies to all ac high-voltage generator circuit breakers rated on a symmetrical current basis that are installed between the generator and the transformer terminals. Pumped storage installations are considered a special application, and their requirements are not...
The scope of this document is to provide the basic factors and general considerations in selecting the class and means of neutral grounding for synchronous generator systems connected to electrical utility systems. It also provides the suggested methods and apparatus to be used to achieve...
This specification covers one type of mechanical smoke generator for use in the production of smoke screens.
Standard frequency generators include atomic frequency standards, quartz oscillators, dielectric resonator oscillators (DROs), yttrium-iron-garnet (YIG) oscillators, cavity oscillators, sapphire oscillators, and thinfilm resonator (TFR) based oscillators. Excluded are...
This specification covers the general requirements for the Generator, Visual Image of the Target Selector Group, Fire Control XM-10 (Vulcan), hereafter referred to as the VIG.
This standard defines the criteria for the application and testing of diesel-generator units used as Class 1E standby power supplies in nuclear power generating stations. Figure 1 shows the boundaries of systems and equipment included in the scope of this standard. Purpose This standard...
The requirements in this standard apply to all types of 50 Hz and 60 Hz salient-pole synchronous generators and generator/motors rated 5 MVA and above to be used for hydraulic turbine or hydraulic pump/turbine applications. Salient-pole generators and generator/motors...
NOTE: This guide specification covers the requirements for 1800 rpm diesel engine-generator sets with ratings up to 2000 kW at 0.8 power factor intended for use in low voltage, non paralleling, emergency electrical power systems meeting requirements of NFPA 70, NFPA 99, and MIL-HDBK-1191.
This recommended practice establishes objectives for high performance control motor tachometer generators to be used with aeronautical and associated equipment in protective enclosures or completely within the shell of the aircraft so that they are subjected only to the internal climatic...
