Phase Converter manufacturer: Phase-A-Matic, Inc.Phase-A-Matic, Inc. Rotary Phase Converter
  HOME
 
 PHASE CONVERSION 

  PRODUCTS PAGE
ROTARY CONVERTER
   MODELS & PRICES
   DESCRIPTION
   APPLICATION NOTES
   DIMENSIONS
   KW ROTARY CONVERTER
.

  CNC CONVERTER
  VOLTAGE STABILIZER
  STATIC CONVERTER
  TRANSFORMERS
 

 SIZING
. For PHASE CONVERTER
. For POWER GENERATOR
.
 PHASE-A-MATIC, INC.
  CONTACT US
  HOW TO ORDER
  BECOME A DEALER
  ABOUT US
  HOME PAGE
.
 SITE MAP
.

 

 
 

 

 

 

 

.


.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

      Rotary Converter Installation
.
.
General Information
.
CAUTION: Always start converter before applying load.

1.

Magnetic controls or  single-phase  loads (including electronics, microprocessors, etc.) must  always be energized  by  lines T-1 and T-2.  

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.
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.

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.

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.

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. 
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.

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.

11. 230V "R" series Rotary Converter is 230V single-phase in and 230V 3-phase out, 60Hz and 50Hz use.

460V "RH" series Rotary Converter is 460V single-phase in and 460V 3-phase out, 60Hz and 50Hz use.
.
230V Specifications


230V Models  ( R Series) Electrical Specifications
230V single-phase in and 230V 3-phase out, 60Hz and 50Hz use.

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

RH-75

75 HP

225 HP

29 AMPS 300 AMPS

5

210 A

375 AMPS

RH-100

100 HP

300 HP

48 AMPS 400 AMPS

5

250 A

600 AMPS

.
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, 60Hz and 50Hz use.

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
RH-75

75 HP

225 HP

15 AMPS 150 AMPS 4 115 A 200 AMPS
RH-100

100 HP

300 HP

24 AMPS 200 AMPS 4 150 A 300 AMPS

.
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.
.

.
  Single Unit Installation Diagram

"R" Series  is 208-230V single-phase in and 208-230V three-phase out, 60Hz and 50Hz use.
 
"RH"
Series  is 460V single-phase in and 460V three-phase out, 60Hz and 50Hz use.  

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
Rotary Converter Installation, Hook-up, Connection Illustration / Diagram

 


tion Di 
  Multiple Units Banked Together Installation

.

"R" Series  is 208-230V single-phase in and 208-230V three-phase out, 60Hz and 50Hz use.
 
"RH"
Series  is 460V single-phase in and 460V three-phase out, 60Hz and 50Hz use.
  
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
Rotary Converters banked together in parallel for combined output of Horsepower for 220V and 440V applications
 

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.

   

 

      * To download PDF file viewer:

You must have the  Adobe Reader program on your computer. This program is free.

Back to top