FIELD: electricity.
SUBSTANCE: invention refers to electrical engineering, namely to methods of measurement of parametres of zero-sequence loop in resonant grounded systems 6-35 kV including systems with mixed mode of neutral grounding. In loop of zero-sequence of network transient disturbance is generated, free component of transient phenomena is segregated and frequency and mechanical damping index in loop are defined. Parametres of network in relation to ground are defined based on parametres of free oscillations and known parametres of neutral grounding circuit or capacitive circuit equivalent to capacity admittance of network in relation to ground. Invention may be used in cable, aerial and aerial-cable networks with any value of admissible unsymmetry.
EFFECT: providing of operation at increased level of noise and interference.
12 cl, 4 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| ADJUSTMENT METHOD OF COMPENSATION OF CAPACITANCE FAULT-TO-GROUND CURRENTS (VERSIONS) | 2009 |
|
RU2402132C1 |
| DEVICE FOR AUTOMATIC TUNING OF ARC-QUENCHING REACTOR | 2009 |
|
RU2404501C1 |
| METHOD OF AUTOMATIC COMPENSATION OF THE CURRENT OF A SINGLE PHASE FAULT TO EARTH IN A NETWORK WITH AN ARC-SUPPRESSING REACTOR IN THE NEUTRAL | 2016 |
|
RU2655670C2 |
| METHOD FOR ADJUSTING COMPENSATION OF CAPACITIVE GROUNDING CURRENTS IN ELECTRIC NETWORKS | 2006 |
|
RU2321132C1 |
| ADJUSTMENT METHOD OF COMPENSATION OF CAPACITANCE FAULT-TO-GROUND CURRENTS IN ELECTRIC NETWORKS | 2006 |
|
RU2475915C2 |
| SETTING METHOD OF COMPENSATION CAPACITANCE CURRENT EARTH FAULT CURRENT | 2016 |
|
RU2646221C1 |
| NEUTRAL GROUNDING CONTROL DEVICE IN THE ELECTRICAL NETWORK | 2022 |
|
RU2788676C1 |
| METHOD OF AUTOMATIC NEUTRAL BIAS VOLTAGE REGULATION IN A COMPENSATED NETWORK | 2017 |
|
RU2663823C1 |
| DEVICE FOR AUTOMATIC COMPENSATION OF CURRENT OF SINGLE PHASE-TO-EARTH FAULT | 2017 |
|
RU2673799C1 |
| ADJUSTMENT METHOD OF COMPENSATION OF CAPACITANCE FAULT-TO-GROUND CURRENTS IN ELECTRIC NETWORKS | 2016 |
|
RU2644582C1 |
