Nothing Special   »   [go: up one dir, main page]

Bansal et al., 1992 - Google Patents

Microprocessor based harmonic restraint differential protection scheme for a transformer

Bansal et al., 1992

Document ID
8596388286127147714
Author
Bansal R
Joshi B
Singh S
Bandopadhaya R
Publication year
Publication venue
Journal of microcomputer applications

External Links

Snippet

This paper presents a microprocessor based differential protection scheme for a single phase transformer with harmonic restraint feature to avoid mal-operation during inrush current conditions. The protection scheme is implemented by means of a single …
Continue reading at www.sciencedirect.com (other versions)

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/04—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for transformers
    • H02H7/045—Differential protection of transformers
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection integrated protection
    • H02H3/26—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents
    • H02H3/32—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H1/00—Details of emergency protective circuit arrangements
    • H02H1/0007—Details of emergency protective circuit arrangements concerning the detecting means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/25—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques

Similar Documents

Publication Publication Date Title
Kumar et al. A fast and scalable protection scheme for distribution networks with distributed generation
CN101916989B (en) Method for distinguishing effectiveness two-time continuous sampling values of electric power system
Wiszniewski et al. A multi-criteria differential transformer relay based on fuzzy logic
DE3750820T2 (en) Distance protection of three-phase distribution transformers.
Kezunovic et al. Design, modeling and evaluation of protective relays for power systems
Kasztenny et al. A self-organizing fuzzy logic based protective relay-an application to power transformer protection
Apostolov et al. Superimposed components based sub-cycle protection of transmission lines
Styvaktakis Automating power quality analysis
Styvaktakis et al. Signatures of voltage dips: transformer saturation and multistage dips
Dashti et al. Fast and reliable CT saturation detection using a combined method
Rahmati et al. Protection of power transformer using multi criteria decision-making
Ohrstrom et al. Fast protection of strong power systems with fault current limiters and PLL-aided fault detection
Ajaei et al. Mitigating the impacts of CCVT subsidence transients on the distance relay
EP0040471B1 (en) Protective relaying system
US5627712A (en) Transformer differential relay
US5402071A (en) Ground fault monitoring device for an electrical power distribution system
US4450497A (en) Ultra-high-speed relay
Hope et al. Digital differential protection of a generating unit scheme and real-time test results
US4819119A (en) Faulted phase selector for single pole tripping and reclosing schemes
Bansal et al. Microprocessor based harmonic restraint differential protection scheme for a transformer
Tziouvaras et al. The effect of conventional instrument transformer transients on numerical relay elements
Saha et al. Artificial intelligent application to power system protection
Ma et al. Hierarchical protection for smart grids
Apostolov Implementation of a transient energy method for directional detection in numerical distance relays
Verma et al. A microprocessor-based inrush restrained differential relay for transformer protection