36 CTV-PRB004-EN
Medium-Voltage Starter Types (2,300–6,600 Volts)
5. The 2M contacts close to bypass the reactor and connect the compressor motor directly to the
line.
Standard features
• Control-power transformer
• Primary and secondary current transformers (CTs)
• Potential transformers (PTs)
• Grounding provisions
• Bolted line-power connections
• Bolted load-side connections for remote starters
• Standard motor protection
Environmental specification
• Designed, developed, and tested in accordance with UL 347
• NEMA 1 enclosure as standard
• Operation from sea level to 6,000 ft (1,829 m)
• Operating ambient temperature range 32°F to 104°F (0°C to 40°C)
• Relative humidity, non-condensing 5% to 95%
• Non-operating ambient temperature range -40°F to 158°F (-40°C to 70°C)
• Voltage utilization range ±10%
Dimensions
Typical dimensions for remote-mounted primary reactor starters are shown in Figure 28, p. 37.
Unit-mounted primary reactor starter dimensions are shown in Figure 29, p. 37.Always consult the
submittal drawings for as-built dimensions.
Figure 27. Simplified primary reactor wiring diagram
PRIMARY REACTOR
MOTOR
1M
OL
OL
OL
2M
2M
2M
2M
80%
65%
50%
1M
1M
1M
PR
PR
F
F
CPT
TRANSITION
START-
STOP
LINE
VOLTAGE
CTV-PRB004.book Page 36 Sunday, December 18, 2011 6:39 PM
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