FIELD: electrical engineering. SUBSTANCE: surge protective device has porcelain cover with flanges at ends and varistors mounted inside cover. Cover has cylindrical internal surface and conical external one, outer diameter of cover being found from mathematical expression given in description of invention. Optimal physical parameters of cover are obtained due to considering scale effect. EFFECT: reduced mass of device. 1 dwg, 3 tbl _
Title | Year | Author | Number |
---|---|---|---|
SURGE PROTECTIVE DEVICE | 2001 |
|
RU2207642C2 |
SURGE PROTECTIVE DEVICE | 2002 |
|
RU2207643C1 |
VOLTAGE SURGE PROTECTIVE DEVICE | 2003 |
|
RU2250523C2 |
SURGE PROTECTIVE GEAR | 2000 |
|
RU2172036C1 |
SURGE VOLTAGE PROTECTIVE GEAR | 1995 |
|
RU2097862C1 |
SURGE PROTECTIVE DEVICE | 2004 |
|
RU2258269C1 |
SURGE PROTECTIVE GEAR | 2000 |
|
RU2172035C1 |
OVERVOLTAGE PROTECTION DEVICE | 0 |
|
SU1403108A1 |
OVERVOLTAGE PROTECTION DEVICE | 2009 |
|
RU2414784C2 |
SURGE-VOLTAGE PROTECTIVE GEAR | 1998 |
|
RU2144712C1 |
Authors
Dates
2003-03-27—Published
2001-05-10—Filed