- 10 -
Installation
Typical Motor Control Settings
Alarm
Trip
(Shutdown)
Timer Trip
Setting
(1)
Winding Temperature
•
Class B Insulation
•
Class F Insulation
130°C
155°C
155°C
170°C
Motor Bearing Temperature
(Thermocouple or RTD’s)
•
Sleeve Bearing
90°C
95°C
•
Antifriction Bearing
100°C
105°C
Ground Fault
4 Amps
(2)
Primary
Circuit
8 Amps
(2)
Primary
Circuit
0.2 sec.
(2)
Instantaneous Overcurrent
•
With ½ Cycle Delay
1.8 times Locked Rotor Amps
(2)
•
Without Time Delay
2.4 times Locked Rotor Amps
(2)
Maximum Voltage
110 % of Rated Voltage
10 sec.
Minimum Voltage
(the minimum voltage
also applies to starting unless otherwise
specified)
90 % of Rated Voltage
10 sec.
Maximum Frequency Deviation
±5%
10 sec.
Maximum of Voltage Plus Frequency Deviation
±10%
10 sec.
Maximum Voltage Unbalance
(3)
1%
15 sec.
Maximum Current Unbalance
(3)
8%
15 sec.
Suggested Vibration Limits
RPM
3600
1800
1200
900 and
Slower
Shaft (mils, pk-to-pk) – Alarm
(4)
2.8
3.2
3.8
4.5
Shaft (mils, pk-to-pk) – Trip
(4)
3.3
3.7
4.3
5.0
Housing (in./sec.) - Trip
0.25
0.25
0.25
0.25
(1)
Maximum time at maximum condition before control device is to operate.
(2)
Increase as necessary to avoid nuisance trips.
(3)
This is the maximum deviation from the average of the three phases.
(4)
Applies only when vibration probes are supplied.
Summary of Contents for CAZBHS
Page 25: ... 24 Maintenance UPPER BEARING ARRANGEMENTS Figure 7 Figure 8 ...
Page 26: ... 25 Maintenance LOWER BEARING ARRANGEMENTS Figure 9 Figure 10 Figure 11 ...
Page 27: ... 26 Maintenance Self Release Coupling Arrangement At Top Of Motor Figure 12 ...
Page 30: ... 29 Spare Parts Figure 16 ...
Page 31: ... 30 Spare Parts Figure 17 ...
Page 32: ... 31 Spare Parts Figure 18 ...
Page 33: ... 32 Spare Parts Figure 19 ...
Page 34: ... 33 Spare Parts Figure 20 ...
