FIELD: power supply to explosion-hazard enterprises including coal-mining ones.
SUBSTANCE: novelty is that additional temperature sensors, their operating temperature being lower than that of main ones, are disposed in proposed substation on winding-and-core assembly of power transformer at point of installation of main temperature sensors; they are connected to overtemperature protective and warning gear additionally introduced in power circuits of circuit-breaker undervoltage release and independent release, overcurrent protection units, and ground-fault protective gear; overtemperature protective and warning gear has pilot lights and audible alarms warning about thermal condition of substation transformer winding-and-core assembly; newly introduced in high-voltage switchgear cable box is disconnecting unit for high-voltage power switching device of substation.
EFFECT: enhanced reliability and safety in operation.
6 cl, 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| LOW-VOLTAGE SWITCHGEAR FOR EXPLOSION-PROTECTED MINE TRANSFORMER SUBSTATION | 0 |
|
SU1677729A1 |
| MINING EXPLOSION - PROOF TRANSFORMER SUBSTATION | 0 |
|
SU1830580A1 |
| EXPLOSION-PROOF MINE TRANSFORMER SUBSTATION | 0 |
|
SU1247982A1 |
| EXPLOSION-PROOF TRANSFORMER SUBSTATION | 0 |
|
SU1723611A1 |
| FACTORY-ASSEMBLED TRANSFORMER SUBSTATION | 2000 |
|
RU2189681C1 |
| COMPLETE HIGH-VOLTAGE TRANSFORMER SUBSTATION | 0 |
|
SU1070638A1 |
| METHOD FOR POWER SUPPLY TO HYDRAULIC STRUCTURES | 2002 |
|
RU2219629C1 |
| METHOD FOR ERECTING MODULAR DISTRIBUTION TRANSFORMER SUBSTATION | 2002 |
|
RU2219630C1 |
| EXPLOSION-PROOF TRANSFORMER SUBSTATION | 0 |
|
SU1675986A1 |
| MODULAR DISTRIBUTION TRANSFORMER SUBSTATION | 2002 |
|
RU2219631C1 |
