FIELD: electrical engineering; electric drives.
SUBSTANCE: proposed device has three delta-connected primary windings of current transformer inserted in series with neutral point of load. Transformer secondary winding is connected to relay. Novelty is use of protective disconnecting device for the purpose.
EFFECT: simplified design, enhanced reliability.
1 cl, 3 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| MULTI-BRIDGE RECTIFIER | 2019 |
|
RU2717080C1 |
| DEVICE FOR PROTECTION OF THREE-PHASE LOADING FROM CHANGE, ALTERNATION OR OPEN-CIRCUIT OF PHASE | 0 |
|
SU1809488A1 |
| TRANSFORMER TESTING FACILITY | 2019 |
|
RU2697856C1 |
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|
RU2253174C1 |
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|
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|
SU997171A1 |
| INDUCTION MOTOR OVERLOAD PROTECTIVE GEAR | 0 |
|
SU1760593A1 |
| DEVICE FOR PROTECTIVE CUTOUT OF ELECTRIC INSTALLATION IN THREE-PHASE AC NETWORK WITH NEUTRAL WIRE | 0 |
|
SU845214A1 |
| ADJUSTABLE REACTOR UNIT | 2017 |
|
RU2666927C1 |
