IEEE C62.21-2003 pdf download.IEEE Guide for the Application of Surge Voltage Protective Equipment on AC Rotating Machinery 1000 V and Greater 4. The basic means of machine surge protection The basic means of protecting machines from surges has been to slow the rate of surge voltage rise by a series
Continue readingIEEE C62.92.5-2020 pdf download
IEEE C62.92.5-2020 pdf download.IEEE Guide for the Application of Neutral Grounding in Electrical Utility Systems—Part V: Transmission Systems and Subtransmission Systems 4. Transmission system grounding 4.1 General According to IEEE Std C62.82.1™, the AIEE Committee Report, “Application Guide on Methods of Neutral Grounding of Transmission Systems,” [B2] 6 and IEEE
Continue readingIEEE C57.158-2017 pdf download
IEEE C57.158-2017 pdf download.IEEE Guide for the Application of Tertiary and Stabilizing Windings in Power Transformers 4.3 Application of stabilizing windings from perspective of transformers performance As mentioned in previous paragraphs, a stabilizing winding is not the only means to improve zero-sequence performance of wye-wye-connected transformers; three-legged, core-form three-phase transformers
Continue readingIEEE C57.12.70-2020 pdf download
IEEE C57.12.70-2020 pdf download.IEEE Standard for Standard Terminal Markings and Connections for Distribution and Power Transformers 3. Definitions, acronyms, and abbreviations Standard transformer terminology available in IEEE Std C57.12.80 7 shall apply. For all other terms, consult the IEEE Standards Dictionary Online. 8 4. Marking of terminals and identification of
Continue readingIEEE C57.12.58-2017 pdf download
IEEE C57.12.58-2017 pdf download.IEEE Guide for Conducting a Transient Voltage Analysis of a Dry-Type Transformer Coil 3. Defnitions For the purposes of this document, the following terms and defnitions apply. The IEEE Standards Dictionary Online should be consulted for terms not defned in this clause. 4 Standard transformer terminology, which
Continue readingIEEE C57.12.29-2014 pdf download
IEEE C57.12.29-2014 pdf download.IEEE Standard for Pad-Mounted Equipment- Enclosure Integrity for Coastal Environments 3. Definitions For the purposes of this standard, the following terms and definitions apply. ïñe Authoritative Dictiona y ofIEEE Standards [B10I3 should be referenced for terms not defined in this clause. 3.1 above grade: A term referring
Continue readingIEEE C37.21a-2020 pdf download
IEEE C37.21a-2020 pdf download.IEEE Standard for Control Switchboards Amendment 1: Control and Secondary Circuits and Devices, and All Wiring 7.1.5.1 General All voltage circuits used for control, relaying, or metering shall be protected within the switchboard as follows: a) All circuits supplied from external sources (ac or dc) shall have
Continue readingIEEE C37.20.7-2017 pdf download
IEEE C37.20.7-2017 pdf download.IEEE Guide for Testing Switchgear Rated Up to 52 kV for Internal Arcing Faults This guide establishes methods by which equipment may be tested for resistance to the effects of arcing due to an internal fault. Equipment types covered in this guide include metal-enclosed switchgear as defned
Continue readingIEEE 2410-2019 pdf download
IEEE 2410-2019 pdf download.IEEE Standard for Biometric Open Protocol The Biometric Open Protocol Standard (BOPS) provides three application-programming interface (API) calls to support biometric identification and authentication including liveness. The BOPS implementation allows the systems to meet security needs by using the API. The BOPS implementation need not know whether
Continue readingIEEE 2143.1-2020 pdf download
IEEE 2143.1-2020 pdf download.IEEE Standard for General Process of Cryptocurrency Payment 4.2 Inquiry process Before collecting money from the customer, the payment platform should query the exchange rate from the exchange platform, then lock the exchange rate and quote to customer. In case the payment currency is not the same
Continue reading