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Oct 21, 2015 13:30
8 yrs ago
angielski term
Polska
Do it properly, or don't do it at all.
Native in: polski
Works in: angielski > polski, polski > angielski, angielski
service power
angielski > polski
Technika/inżynieria
Inżynieria przemysłowa
Service power to określenie zdefiniowane w amerykańskiej normie AGMA 421.06 (ANSI dała organizacji AGMA wyłączność na przygotowywanie norm dotyczących przekładni). Owa norma jest dostępna w sieci internetowej, oto definicja:
SERVICE POWER of an application is defined as the
maximum installed continuous power capacity of the
prime mover, unless specifically agreed to by the
purchaser and vendor. For example, for electric
motors, maximum continuous power will be the
motor nameplate power rating multiplied by the
motor service factor.
For gear units between two items of driven equipment,
service power of such gears should normally
not be less than item (a) or (b) below, whichever is
greater.
a. 110 percent of the maximum power required
by the equipment driven by the gear;
b. maximum power of the driver prorated between
the driven equipment, based on normal
power demands.
If maximum torque occurs at a speed other than
maximum continuous speed, this torque and its
corresponding speed shall be specified by the
purchaser. Maximum continuous speed, Nmc, is
normally the speed at least equal to 105% of the
specified (or nominal) pinion speed for variable
speed units and is the rated pinion speed for
constant speed units.
SERVICE POWER of an application is defined as the
maximum installed continuous power capacity of the
prime mover, unless specifically agreed to by the
purchaser and vendor. For example, for electric
motors, maximum continuous power will be the
motor nameplate power rating multiplied by the
motor service factor.
For gear units between two items of driven equipment,
service power of such gears should normally
not be less than item (a) or (b) below, whichever is
greater.
a. 110 percent of the maximum power required
by the equipment driven by the gear;
b. maximum power of the driver prorated between
the driven equipment, based on normal
power demands.
If maximum torque occurs at a speed other than
maximum continuous speed, this torque and its
corresponding speed shall be specified by the
purchaser. Maximum continuous speed, Nmc, is
normally the speed at least equal to 105% of the
specified (or nominal) pinion speed for variable
speed units and is the rated pinion speed for
constant speed units.
Discussion
However, continuous power (service power) is a combination of:
-- changes in specific gravity or density of the media being pumped;
-- carry out;
-- overspeed;
-- variations in pressure ratio across a compressor due to abnormal operating conditions