Electrical Wiring - Saci pumps VG Serie Instrucciones De Instalación Y Manejo

SD/SV Series Submersible Pumps

Electrical wiring

(1) Wiring
a) Wire as indicated for the appropriate start system as shown in
b) Loose connections will stop the pump. Make sure all electrical connections secure.
(2) Cable
! WARNING :
c)
d) If the cable is extended, do not immerse the splice in water.
e) Fasten the cable to the discharge piping with tape or vinyl strips.
f) Install the cable so that it will not overheat. Overheating caused by coiling the cable and
exposing it to direct sunlight.
(3) Grounding
Fig-4
As shown in
wire be connected to the power supply.
! WARNING :
(4)
R S
U
Operation
1. Before starting the pump
(1) After completing installation, measure the insulation resistance again as described in Installation.
(2) Check water level.
If the pump is operated continuously for an extended period of time in a dry condition or at
the lowest water level, the motor protector will be activated. Constant repetition of this action will
shorten pump service life. Do not start the pump again in such a situation until after the motor has
completely cooled.
Test operation
2. ....
Non-automatic pump
(1) Turn the operating switch on and off a couple of times to check for normal pump start.
Automatic pump
Floating switch must be raised for the pump to start.
(2) Next, check direction of rotation. If discharge volume is low or unusual sounds are heard when the
pump is operating, rotation has been reversed. When this happens, reverse two of the wires.
Never let the end of the cable contact water.
ground the green wire (label E). Under no circumstances should the green
Use short circuit breakers to prevent danger of electrical shock.
T
V W
Motor
D.O.L.
Fig-3
U V W E
4
Fig-3.
U-phase: red
V-phase: white
W-phase: black
E-phase: green
Ground
Plate
Fig-4