KVA BASE RATING : 100

FRAME : UC27C

CONTROL SYSTEM

SEPARATELY EXCITED (PMG)

SELF EXCITED ( NO PMG)

AVR

MX341

MX321

SX460

SX440

SX421

VOLTAGE REGULATION

1.00%

0.50%

1.50%

1.00%

0.50%

WITH 4% ENGINE GOVERNING SX440 IS STANDARD AVR

INSULATION SYSTEM

CLASS H

PROTECTION

IP23 STANDARD

RATED POWER FACTOR

0.8 LAG

STATOR WINDING

DOUBLE LAYER LAP

WINDING PITCH

TWO THIRD

WINDING LEADS

12

OVERLOAD

10% OVERLOAD FOR 1 HOUR ONCE EVERY 12 HOURS

WAVE FORM DISTORTION

NO LOAD <1.8%, NON DISTORTING BALANCED LINEAR LOAD < 5%

MAXIMUM OVERSPEED

2250 REV / MIN

BEARING DRIVE END

BALL 6315-2RS ( ISO )

BEARING NON-DRIVE END

BALL 6310-2RS ( ISO )

STATOR WINDING

DLL

VOLTAGE SERIES STAR (Y)

415 / 240

FREQUENCY HZ

50

1BRG

2BRG

WEIGHT COMP. GENERATOR

409

422

WEIGHT WOUND STATOR

131

131

WEIGHT WOUND ROTOR

136.46

124.99

WR2 INERTIA KGM2

1.0853

1.0317

AND 100% LOAD

90.6

STATOR WINDING RESISTANCE (L-L) @ 22 DEG C

0.118 OHMS

ROTOR WINDING RESISTANCE AT 22 DEG C

1.14 OHMS

X_d DIR AXIS SYNCHRONOUS

2.05

X’_d DIR AXIS TRANSIENT

0.17

X"_d DIR AXIS SUBTRANSIENT

0.12

X_q QUAD AXIS REACTANCE

1.33

X"_q QUAD AXIS SUBTRANSIENT

0.15

X_L LINKAGE REACTANCE

0.06

X₂ NEGATIVE SEQUENCE

0.13

X₀ ZERO SEQUENCE

0.08

REACTANCES ARE SATURATED

VALUES ARE PER UNIT AT RATINGS AND VOLTAGE INDICATED

T’_d TRANSIENT TIME CONSTANT

0.28

T"_d SUBTRANSIENT TIME CONSTANT

0.01

T’ do O.C. FIELD TIME CONSTANT

0.8

Ta ARMATURE TIME CONSTANT

0.007

SHORT CIRCUIT RATIO

0.488