Rotary
Phase Converter Installation
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General
Information |
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CAUTION: Always
start converter before applying load. |
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1. |
Magnetic controls or single-phase loads (including
electronics, microprocessors, etc.)
must always be energized by lines T-1 and T-2.
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|
2. |
Never connect a ground or neutral to line T-3
(manufactured
phase), which can easily be identified as the line with the
highest voltage to ground with the converter running.
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| 3. |
It
is essential that careful consideration
be given to your wiring length
and size to prevent slow starting due to a
voltage drop . Consult National
Electrical Code for proper wire sizing.
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| 4. |
Due
to the high starting current (in-rush current) common to electric
motors, a drop of starting torque may occur when using a converter
that is too small. Because of this, it is NOT advised to size an
application HP for HP. The vast majority of applications require
sizing the converter 50% larger or more than the largest HP
rated motor of your equipment. See Application
Notes
for sizing
considerations, or call 1-800-962-6976.
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| 5. |
The
tables below show the approximate idle current at the
specified voltage. Higher line voltage will cause idle current to
increase. Excessive amperage could also be caused by incorrect
installation.
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| 6. |
Voltage sensitive
equipment (CNC/PLC, 3-phase powered electronics, etc.) may require
a Phase-A-Matic™ Voltage Stabilizer designed to reduce phase
voltage imbalance. See Voltage
Stabilizer, or call
1-800-962-6976.
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| 7. |
Properly
ground all electrical equipment. |
| 8. |
Converter
should reach full speed within 2 to 3 seconds. |
| 9. |
Lubricate
every 12 months for normal operation, or every 6 months for
continuous (24 hour) operation. Use high
temp bearing grease: "Exxon POLYREX®EM"
polyurea grease or equivalent available from Phase-A-Matic,
Inc.
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| 10. |
Converters
are intended for use in clean, dry
locations with access to an adequate supply
of cooling air. In addition, there
should be protection from or avoidance of
flammable or combustible materials in the
area of converters as they can eject flame and/or
metal in the event of an insulation failure.
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| 11. |
230V "R"
series Rotary Converter is 230V single-phase in and 230V 3-phase
out.
460V "RH" series Rotary Converter is 460V single-phase
in and 460V 3-phase out.
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230V Specifications
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230V Models ( R Series) Electrical Specifications
230V single-phase in and
230V 3-phase out |
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|
Model |
Largest
Motor HP See
#1.Below |
Multiple
Motors Lightly Loaded
See
#2.Below |
Approx.
Idle Current |
Disconnect
Switch Fuse (Time Delay Fuses) |
NEMA
Starter Size |
Starter
Heater Amps |
Minimum
Single Phase Supply
See #3.Below |
| R-1 |
1 HP |
3 HP |
1.5 AMPS |
10 AMPS |
00 |
4.8
A |
15 AMPS |
| R-2 |
2 HP |
6 HP |
2 AMPS |
10 AMPS |
0 |
7.7 A |
15 AMPS |
| R-3 |
3 HP |
9 HP |
2.5 AMPS |
15 AMPS |
0 |
10.4 A |
20 AMPS |
| R-5 |
5 HP |
15 HP |
3 AMPS |
30 AMPS |
1 |
15.9 A |
30 AMPS |
| R-7 |
7 1/2 HP |
22 HP |
5 AMPS |
40 AMPS |
1 |
26 A |
40 AMPS |
| R-10 |
10 HP |
30 HP |
7 AMPS |
45 AMPS |
2 |
35 A |
60 AMPS |
| R-15 |
15 HP |
45 HP |
8 AMPS |
60 AMPS |
3 |
48 A |
100 AMPS |
| R-20 |
20 HP |
60 HP |
10 AMPS |
80 AMPS |
3 |
63 A |
125 AMPS |
| R-25 |
25 HP |
75 HP |
11 AMPS |
100 AMPS |
3 |
80 A |
160 AMPS |
| R-30 |
30 HP |
90 HP |
12 AMPS |
125 AMPS |
3 |
94 A |
200 AMPS |
| R-40 |
40 HP |
120 HP |
13 AMPS |
150 AMPS |
4 |
117 A |
250 AMPS |
| R-50 |
50 HP |
150 HP |
15 AMPS |
200 AMPS |
5 |
145 A |
300 AMPS |
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1. Largest Motor HP: Almost
all machines require sizing the converter 50% larger or
more than the largest HP motor of your machine. See
paragraph #4 above. Also refer to
Sizing
For Load Types.
2.
Multiple Motors Lightly Loaded: HP shown in chart reflects maximum
HP allowable under specific conditions. EXAMPLE:
Multiple machinery not started at the same time and that is
running lightly loaded. Also refer to Multiple
Motor Applications.
3.
Minimum
Single Phase Supply:
Single-phase
supply shown is for absolute maximum output of the Rotary
Converter. Most of the time the converter is oversized to
provide the high starting current for the motor. It is not
always necessary to use single-phase breakers sized this
large. See the following formula.
Formula: Total three-phase amperage (running load
amperage) the machine(s) will ever draw multiplied by 1.5
(extra single-phase needed to generate the third leg), then
add the idle current of the Rotary Converter. That will give
you the total single-phase amps that will ever be drawn from
the single-phase lines. Size the single-phase breaker
minimum 20% above that total amperage draw and size the wire
accordingly.
IMPORTANT: This chart is
simplified and cannot reflect the many types of applications
possible. Contact Phase-A-Matic, Inc. at 1-800-962-6976 to
verify your phase converter requirements. Also refer to
Application
Notes for sizing
considerations.
Larger
Horsepower
phase converter systems may be obtained by
connecting multiple Rotary Converters in parallel. See
Multiple
Units Banked Together.
. |
|
Specifications |
|
460V Models ( RH Series) Electrical Specifications
460V single-phase
in and 460V 3-phase out |
|
| Model |
Largest
Motor
HP
See.#1 Below |
Multiple
Motors Lightly Loaded
See.#2 Below |
Approx.
Idle
Current |
Disconnect
Switch Fuse
(Time Delay Fuses) |
NEMA
Starter Size |
Starter Heater Amps |
Minimum
Single Phase Supply
See #3.Below |
| RH-20 |
20 HP |
60 HP |
5 AMPS |
40 AMPS |
2 |
35 A |
60 AMPS |
| RH-30 |
30 HP |
90 HP |
6 AMPS
|
60 AMPS |
3 |
48 A |
100 AMPS |
| RH-40 |
40 HP |
120 HP |
8 AMPS |
80 AMPS |
3 |
63 A |
125 AMPS |
| RH-50 |
50 HP |
150 HP |
9 AMPS |
100 AMPS |
3 |
78 A |
150 AMPS |
|
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1. Largest Motor HP: Almost
all machines require sizing the converter 50% larger or
more than the largest HP motor of your machine. See
paragraph #4 above. Also refer to
Sizing
For Load Types.
2.
Multiple Motors Lightly Loaded: HP shown in chart reflects maximum
HP allowable under specific conditions. EXAMPLE:
Multiple machinery not started at the same time and that is
running lightly loaded. Also refer to Multiple
Motor Applications.
3.
Minimum
Single Phase Supply:
Single-phase
supply shown is for absolute maximum output of the Rotary
Converter. Most of the time the converter is oversized to
provide the high starting current for the motor. It is not
always necessary to use single-phase breakers sized this
large. See the following formula.
Formula: Total three-phase amperage (running load
amperage) the machine(s) will ever draw multiplied by 1.5
(extra single-phase needed to generate the third leg), then
add the idle current of the Rotary Converter. That will give
you the total single-phase amps that will ever be drawn from
the single-phase lines. Size the single-phase breaker
minimum 20% above that total amperage draw and size the wire
accordingly.
IMPORTANT: This chart is
simplified and cannot reflect the many types of applications
possible. Contact Phase-A-Matic, Inc. at 1-800-962-6976 to
verify your phase converter requirements. Also refer to
Application
Notes for sizing
considerations.
Larger
Horsepower
phase converter systems may be obtained by
connecting multiple Rotary Converters in parallel. See
Multiple
Units Banked Together.
. |
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| Single Unit Installation
Illustration
R Series
is 208-230V single-phase in and 208-230V three-phase out.
RH Series is 460V single-phase in and 460V
three-phase
out.
Higher line voltages or voltage sensitive applications, such as CNC equipment, may
require a
Voltage Stabilizer.
If you have single-phase that is 208-230V and you need 460V three-phase out, or visa-versa, a transformer can be used to step the voltages up or down as
required. Consult factory. |
XX
 |
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| Multiple Units
Banked Together Installation
R
Series is 208-230V single-phase in and
208-230V three-phase out.
RH Series is 460V single-phase in and
460V three-phase out.
Higher line voltages or voltage sensitive applications, such as
CNC equipment, may require a Voltage Stabilizer.
If you have single-phase that is
208-230V and you need 460V three-phase out, or visa-versa, a
transformer can be used to step the voltages up or down as
required. Consult factory.
|
Multiple Unit Installation
Instructions
| A. |
1,000 HP or more is
possible by connecting multiple units together in banks as required.
Potential output is limited only by adequate wiring size and your
single-phase supply available. Consult factory for these options. |
| B. |
Caution:
Special care must be taken to connect all T-1 lines and all T-2
lines together. Test run the individual units before connecting the
T-3 lines together. Carefully measure the voltages between the
different T-3 lines. It should not read more than 60V for the R
Series, and 110V for the RH Series, but could read much less. This
will ensure that you have proper phase rotation. Cross phasing will
cause a dead short and possible damage. |
| C. |
Fuses or magnetic
starters should be sized for the individual converters and not for
the total load. |
| D. |
The converters may
be started either individually to reduce line surge, or may be
started simultaneously depending on the limitations of your single
phase supply available. |
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