FIELD: electrical engineering; protection of high-voltage equipment insulation against atmospheric and switching voltage surges.
SUBSTANCE: proposed surge limiter has composite-material ground insulation tube lined with tracking-shielding ribs installed on its external cylindrical surface reinforced by terminators, at least one stack of spring-compressed coaxially joined varistor disks which is disposed between these ribs within ground-insulation tube and connected through shunt to upper terminator; space between internal cylindrical surface of ground insulation tube and stack is filled with heat-conducting insulating compound; terminator is joined to ground-insulation tube with aid of at least one flexible key installed through entry hole in keyway formed by ground insulation tube slot and terminator one; flexible key axis lies in plane perpendicular to ground insulation tube axis; tangent plane to flexible key axis is parallel to ground insulation tube axis.
EFFECT: enhanced explosion safety of surge limiter due to joining terminator and ground insulation tube with aid of flexible key.
5 cl, 11 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| SURGE LIMITER | 2006 |
|
RU2301471C1 |
| SURGE LIMITER | 2004 |
|
RU2256972C1 |
| HIGH-VOLTAGE BUSHING | 2000 |
|
RU2235398C2 |
| APPARATUS FOR LIMITING OVERVOLTAGE | 2011 |
|
RU2493626C2 |
| POLYMERIC INSULATOR | 2006 |
|
RU2320042C1 |
| OVERVOLTAGE PROTECTION DEVICES CONTAINING PLATE MADE FROM VARISTOR MATERIAL | 2006 |
|
RU2416834C2 |
| SURGE DISCHARGER ACTIVE PART | 2004 |
|
RU2320044C2 |
| DEVICE FOR PROTECTING INSULATION OF ELECTRICAL EQUIPMENT FROM LIGHTNING AND SWITCHING OVERVOLTAGES | 2022 |
|
RU2808500C1 |
| OVERVOLTAGE SUPPRESSOR | 2007 |
|
RU2427049C2 |
| SURGE LIMITING DEVICE | 2002 |
|
RU2211497C1 |
