Franklin Electric Submersible AIM Manual - Application - Three-Phase Motors

Location: Sub Home > 60 Hz AIM Manual > Application - Three-Phase > Page 31

Page 30 | Page 32


	31 32 33 34 35

SubMonitor Three-Phase Protection

Applications

SubMonitor is designed to protect 3-phase pumps/ motors with service factor amp (SFA) ratings from 5 to 350 A (approx. 3 to 200 hp). Current, voltage, and motor temperature are monitored using all three legs and allows the user to set up the SubMonitor quickly and easily.

Protects Against

Under/Overload
Under/Overvoltage
Current Unbalance
Overheated Motor (if equiped with Subtrol Heat Sensor)
False Start (Chattering)
Phase Reversal

Power Factor Correction

In some installations, power supply limitations make it necessary or desirable to increase the power factor of a submersible motor. The table lists the capacitive kVAR required to increase the power factor of large Franklin three-phase submersible motors to the approximate values shown at maximum input loading.

Capacitors must be connected on the line side of the overload relay, or overload protection will be lost.

Table 31 KVAR Required 60 Hz

Motor		KVAR Required for P.F. of:
HP	KW	.90	.95	1.00
5	3.7	1.2	2.1	4
7 1/2	5.5	1.7	3.1	6
10	7.5	1.5	3.3	7
15	11	2.2	4.7	10
20	15	1.7	5.0	12
25	18.5	2.1	6.2	15.0
30	22	2.5	7.4	18.0
40	30	4.5	11.0	24.0
50	37	7.1	15.0	32.0
60	45	8.4	18.0	38.0
75	55	6.3	18.0	43.0
100	75	11.0	27.0	60.0
125	90	17.0	36.0	77.0
150	110	20.0	42.0	90.0
175	130	9.6	36.0	93.0
200	150	16.0	46.0	110.0

Values listed are total required (not per phase).

	31 32 33 34 35

"Left click" to VIEW pdf.

To SAVE pdf "Right Click" & choose

Copyright 1998-2004. Please review our Terms of Use before accessing this site.
Franklin Electric Co., Inc. 400 E. Spring St., Bluffton, IN, 46714, U.S.A.
E-mail: webmaster@fele.com Tel: 260.824.2900 Fax: 260.824.2909