SCREW AIR COMPRESSOR
INSTALLATION
INSTALLATION OF CAPACITORS
Power Factor Correction
A rational and economic way to obtain the necessary reactive energy for your compressor's proper operation is
the installation of capacitors next to it.
The capacitors installation, however, must be preceded by operational measures that reduce the reactive
energy necessity, as the switching off of motors or other idle inductive loads.
The advantage of the power factor correction is a meaningful voltage improvement.
CARES DURING INSTALLATION OF CAPACITORS
Installation location:
- Avoid sun exposure or installation near high temperature equipment;
- Do not block cabinets' air inlet and outlet;
- Locations must be protected against suspended solid and liquid materials (dust, oil, etc);
- Avoid capacitor installations next to the ceiling (heat);
- Avoid capacitor installations next to non linear loads.
PROTECTION AGAINST SHORT CIRCUITS
Fuses:
Design fuses according to equation: In x 1,65
NOTE: "In" capacitor's plate datum
Use the commercial value of immediately superior retarded type fuse.
Conductors:
Use conductors over-designed in 1,43 times the capacitor's nominal current and take into
consideration other criteria such as: the way to install, ambient temperature, etc..
REMARKS:
For diagram
NOTE: The installation of capacitors to correct the power factor shall be made by a certified
professional.
See in Diagram
compressor.
42
A
connection (Y ) adjust the new current that will go through the relay.
A's
Figure 6, the proper way to connect capacitors during the installation of your
1
3
5
K1
4
6
2
1
3
5
4
6
2
1
2
3
F
F
F
4
5
6
C
1
FIGURE 6 - Diagram
1
3
5
K2
K3
4
6
2
6
4
M
3~
5
A
- Y/
Star Switching
SRP 3040E - SRP 3040
1
3
5
4
6
2