Trane Starters User Manual

CTV-PRB004-EN 55
Electrical System—Design Guidelines
• Additional (non-chiller) loads on the power circuit
When evaluating a power system for a chiller-compressor motor with a specified starter type,
calculations must be done in order to size or “correct” the power circuit properly in order to
successfully start the motor and keep the motor-starter combination online during operation.
Table 9 and Table 10, p. 55 show specific starter characteristics and minimum power requirements.
Note: The maximum allowable under/overvoltage during normal operation is ±10 percent.
Table 9. Sizing requirements
Starter Type Voltage Range
Inrush
Current
% LRA
Chiller Controller
Maximum Acceleration
Time Setpoint (sec)
(a)
(a)The Chiller Controller Maximum Acceleration Time Setpoint is the maximum allowable acceleration time;
if the chiller has not started within this time, a diagnostic will be set.
Percent
Rated
Torque
Wye-Delta 208–600 V 33 27 33
Solid-State 208–600 V ~45 27 33
X-Line 2.3–13.8 kV 100 6 100
Primary Reactor 2.3–13.8 kV 65 16 42
Autotransformer 2.3–13.8 kV 45 16 42
AFD 460–600 V <13 12 Varies
Table 10. Motor starter operational voltage range—during a start
Starter Size Starter Description
Maximum
Line-to-Line
RMS Voltage Sag
Maximum
Line-to-Line
RMS Voltage Swell
155–606 amps Unit- and Remote-Mounted
Wye-Delta
25% 15%
607–1,316 amps Unit-Mounted
Wye-Delta
25% 15%
607–1,856 amps Remote-Mounted
Wye-Delta
20% 15%
185–1,120 amps Unit- and Remote-Mounted
Solid-State
25% 15%
180–960 amps Remote-Mounted,
High-Fault Solid-State
25% 15%
961–1,600 amps Remote-Mounted,
High-Fault Wye-Delta
25% 15%
155–1530 amps Unit- and Remote-Mounted
Low Voltage AFD
(460–600 V)
25% 10%
94, 187, 205/288 amps
(205 reduced voltage, 288
full voltage)
Unit-Mounted
Medium Voltage
(2.3–6.6 kV)
25%
(20% w/additional
protection)
15%
94, 187, 360 amps Remote-Mounted
Medium Voltage
(2.3–6.6 kV)
25%
(20% w/additional
protection)
15%
94 amps Remote-Mounted
Medium Voltage
(10–13.8 kV)
25%
(20% w/additional
protection)
15%
61–250 amps @ 4,160 V Remote Medium-Voltage AFD 25% 10%
CTV-PRB004.book Page 55 Sunday, December 18, 2011 6:39 PM

Trane Starters Specifications

General

Brand	Trane
Model	Starters
Category	Chiller
Language	English