Glossary entry (derived from question below)
Russian term or phrase:
переразмерены по току
English translation:
amp service factor
Added to glossary by
Frank Szmulowicz, Ph. D.
Jan 26, 2022 05:37
2 yrs ago
18 viewers *
Russian term
переразмерены по току
Russian to English
Tech/Engineering
Petroleum Eng/Sci
Electric boards with frequency converter
В щитах управления электродвигателями с преобразователями частоты должно быть предусмотрено:
- напряжение питания цепей управления ~ 230 В, 50Гц; выполняется от гарантированного источника бесперебойного питания внешнего щита 16150-BD-001-GSS-02;
- переразмерены по току на одну ступень;
- покрытие плат преобразователя частоты компаундом по классу (3С2);
- напряжение питания цепей управления ~ 230 В, 50Гц; выполняется от гарантированного источника бесперебойного питания внешнего щита 16150-BD-001-GSS-02;
- переразмерены по току на одну ступень;
- покрытие плат преобразователя частоты компаундом по классу (3С2);
Proposed translations
(English)
| 3 | amp service factor |
Frank Szmulowicz, Ph. D.
|
Change log
Jan 28, 2022 11:40: Frank Szmulowicz, Ph. D. Created KOG entry
Proposed translations
8 hrs
Frank Szmulowicz, Ph. D.
United States
United States
Native in English
United States
On time, on target, on budget.
Native in: English 
, Polish
Works in: Polish to English, English to Polish, Russian to Polish, and 1 more.
Related KudoZ points
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118
Selected
amp service factor
The amount by which the current exceed the rated value.
Практически в традиционных авиационных СЭС аппараты защиты первичных распределительных сетей переразмерены по току в 1,5 -г 2,0 раза.
http://www.dslib.net/elektrotex-kompleksy/tranzistornaja-kom...
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QUESTION: What is the service factor of a motor and what do they mean by "marked service factor?" ANSWER: Service factor is a margin of safety. When the manufacturer designs a service factor into a motor, it means that motor can develop more than its rated current without damage to itself. For example, a 10 HP motor with a service factor of 1.15 can be allowed to develop current equivalent to 11.5 HP without damage to the motor winding insulation. The National Electrical Code (NEC) in Section 430-32(a)(1) allows a motor with a service factor of 1.15 to use overload protection of 125 percent. This allows the motor to operate at up to 15 percent above its normal rating without causing the overload protection to trip
https://www.ecmag.com/section/codes-standards/overcurrent-pr...
HOW DO YOU CALCULATE AMP SERVICE FACTOR?
For example, the FLA or full load amps of the motor above is 10.8 amps at 115 volts. The service factor or S.F. is 1.5, making the service factor amps 16.2 (rounded down to 16 on the motor tag) at 115v because 10.8 x 1.5 = 16.2.
https://www.askforidea.com/what-does-sf-amps-mean/
Практически в традиционных авиационных СЭС аппараты защиты первичных распределительных сетей переразмерены по току в 1,5 -г 2,0 раза.
http://www.dslib.net/elektrotex-kompleksy/tranzistornaja-kom...
cccccc
QUESTION: What is the service factor of a motor and what do they mean by "marked service factor?" ANSWER: Service factor is a margin of safety. When the manufacturer designs a service factor into a motor, it means that motor can develop more than its rated current without damage to itself. For example, a 10 HP motor with a service factor of 1.15 can be allowed to develop current equivalent to 11.5 HP without damage to the motor winding insulation. The National Electrical Code (NEC) in Section 430-32(a)(1) allows a motor with a service factor of 1.15 to use overload protection of 125 percent. This allows the motor to operate at up to 15 percent above its normal rating without causing the overload protection to trip
https://www.ecmag.com/section/codes-standards/overcurrent-pr...
HOW DO YOU CALCULATE AMP SERVICE FACTOR?
For example, the FLA or full load amps of the motor above is 10.8 amps at 115 volts. The service factor or S.F. is 1.5, making the service factor amps 16.2 (rounded down to 16 on the motor tag) at 115v because 10.8 x 1.5 = 16.2.
https://www.askforidea.com/what-does-sf-amps-mean/
4 KudoZ points awarded for this answer.
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