|
ENERGY EFFICIENT ADJUSTABLE SPEED DRIVES FOR WOUND ROTOR
MOTOR CONTROL
 | NEW INSTALLATIONS
|
| RETROFIT INSTALLATIONS
|
| 250 THROUGH 2,000 HP
|
| 460 - 575 - 2300 - 4160 VAC
|
| HIGH EFFICIENCY - The Wattmiser II system has better overall
system efficiency compared to other methods of controlling the speed of a motor such as
secondary resistance, eddy current clutches and adjustable frequency drives (AFD's). The
reason for this is that the controller handles only a portion of the motors' rated output
power.
|
| HIGH POWER FACTOR - Power factor is .95 or better over the
entire operating speed range without external power factor correction capacitors. Power
factor is set electronically within the Line Inverter controller.
|
| HARMONIC FREE - EXCEEDS IEEE 519 SPECS
|
| IGBT BASED POWER CIRCUIT
|
| CLEAN INPUT POWER - The Wattmiser II system draws sinusoidal
currents virtually free of harmonics, exceeding the latest requirements of IEEE-519
for both voltage and current. Large harmonic filters are unnecessary. No tedious
and time consuming harmonic study is required.
|
| SMALL SIZE - The Wattmiser II system is physically smaller and
requires much less floor space than AFD's of equivalent horsepower.
|
| STANDARD MOTOR INSULATION - Motor windings are effectively
shielded from high voltage, high frequency switching spikes which can be a problem with
AFD's. No special motor winding techniques or insulation system is required which makes
the Wattmiser II controller an ideal match to existing wound rotor motors.
|
| LOW POWER COMPONENT COUNT - Incorporated within the Wattmiser II
power circuit is a Line Inverter and a DC Chopper module which utilize state-of-the-art
Insulated Gate Bipolar Transistors (IGBT's). Because the controller handles a relatively
small portion of the motor shaft output power, the number of power transistors required is
low - typically six per module.
|
To allow for high switching frequency operation, the module has an
integrated low-inductance laminated bus structure for component mounting and power
connection. A large integral heatsink is mounted such that cooling air is external
to the enclosure.
| TYPICAL POWER MODULE
|
(insert power module image here)
- Isolated base IGBT modules
- Fiber optic gate drive and fault signal
- Separate LED gate drive on / off indicators
- High density external heatsink cooling
| OPERATOR KEYPAD
|
(insert operator keypad image here)
A "user friendly" door-mounted operator keypad provides
controller operating status and fault signals to a 2-line LCD display directly in English.
Operating parameters can be entered at any time during drive operation unless deliberately
locked out. Command, status and fault interface parameters can also be accessed with the
RS232 / 485 port.
TYPICAL MENU DISPLAYS:
STATUS:
Speed, RPM or percent
Motor Amps
Line Amps
Line Volts
Real Power
Reactive Power
Heatsink Temperature
Start Self-Test
COMMAND:
Manual/Auto Mode
Start/Stop
Manual Speed
Current Limit
Accel Rate
Gain, PID Power Factor
Static Self Test
FAULT:
Line Over Current
Motor Over Current
Heatsink Over Temp
Start Sequence
Bus Precharge
Bus Regulation
Gate Drive
| WATTMISER II RATINGS
|
Horsepower Range
460/600 VAC Stator 250 to 500 HP
2300/4160 VAC Stator 400 to 2,000 HP
Line Voltage Variation
+/- 10% Nominal
Line Frequency
48 to 62 Hz
Input Power Factor
0.95 Minimum
Harmonic Distortion
2% Max
Available Options: E-Run, Automatic Full Speed, Nema 12 Enclosure,
Remote communication via industry standard bus, Touch Screen Operator Panel, Primary
Starter.
| DIMENSIONS
|
HP |
460/600
VOLT MOTOR STATOR |
2300/4160
BOLT MOTOR STATOR |
ROTOR
VOLTAGE |
TRANSFORMER |
CONTROL
HxWxD |
ROTOR
VOLTAGE |
TRANSFORMER |
CONTROL
HxWxD |
KVA |
HxWxD |
KVA |
HxWxD |
| 200 |
585 |
75 |
41x31x22 |
90x60x24 |
|
|
|
|
| 250 |
585 |
100 |
41x31x22 |
90x60x24 |
|
|
|
|
| 300 |
585 |
100 |
41x31x22 |
90x60x24 |
|
|
|
|
| 400 |
585 |
150 |
41x31x22 |
90x60x24 |
725 |
150 |
66x52x32 |
90x60x24 |
| 500 |
585 |
150 |
41x31x22 |
90x60x24 |
725 |
150 |
66x52x32 |
90x60x24 |
| 600 |
|
|
|
|
725 |
200 |
66x52x32 |
90x60x24 |
| 700 |
|
|
|
|
725 |
200 |
66x52x32 |
90x72x24 |
| 800 |
|
|
|
|
900 |
300 |
66x56x36 |
90x72x24 |
| 900 |
|
|
|
|
900 |
300 |
66x56x36 |
90x84x24 |
| 1000 |
|
|
|
|
1100 |
350 |
80x64x40 |
90x84x24 |
| 1250 |
|
|
|
|
1100 |
(4) |
(4) |
(4) |
| 1500 |
|
|
|
|
1100 |
(4) |
(4) |
(4) |
| 2000 |
|
|
|
|
1100 |
(4) |
(4) |
(4) |
NOTES
(1) Ratings are for adjustable speed range of 50% to 98% of full load
speed with centrifugal pump load.
(2) Standard enclosures are NEMA-1.
(3) All ratings and dimensions are approximate for estimation
purposes only. All dimensions in inches.
(4) Consult factory for non-standard rotor voltages and enclosures,
limited space applications, larger horsepower, and speed ranges other than 50% to 98% of
full load speed.
(5) Motor starter is not included but may be supplied as a separately
mounted option.
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FLOMATCHER/MARATHON