Type of load
|
| Three phase medium voltage AC induction motors |
| |
AC supply voltage
|
2300, 3300, 4160, 6600/6900, 13,800 VAC
+10% to -10%
50/60 Hz line voltages |
| |
HP ratings *
|
|
* Consult factory for higher horsepower and voltage requirements. |
| Up to 15,000 HP @ 13,800V (600 Amps max) |
| |
Overload rating
|
| 500% - 60 Seconds |
| |
Power circuit
|
| Series strings of SCR (Silicon Controlled Rectifier) power modules (2, 4 or 6 matched pairs of
SCRs per phase depending on voltage rating) |
| |
SCR peak inverse voltage
|
|
Amps |
Line voltage |
PIV rating |
|
200 to 400 |
2300 V
3300 V
4160 V
6600/6900 V
11-14kV |
6500
13.000
13,000
19,500
39,000 |
|
600 |
2300 V
3300 V
4160 V
6600/6900 V
11-14 kV |
7000
14,000
14,000
21,000
39,000 |
|
| |
Transient voltage protection
|
| dv/dt circuits (1 per SCR power module) |
| |
Vacuum bypass contactor *
|
|
* 13.8 kV, 600A softstarters use circuit breakers for isolation and bypass functions. |
| Standard on all models, line start rated |
| |
Ambient operating temperature
|
0 to 50°C (32°F to 122°F)
(Optional -20° to 50°C with heaters) |
| |
Control
|
Digital microprocessor controller with read-out in English text
Al phanumeric LCD display
N
on-volatile memory for programming and faults
O pto-isolated inputs |
| |
Communications
|
RS485 with mod bus RTU protocol
R
S232 with Windows interface |
| |
Auxiliary contacts
|
| FORM C, 8Amps @ 250V |
| |
Adjustments
|
|
Motor FLA |
|
Dual adjustments - Two independent settings for: |
|
Initial voltage |
0 - 100% of nominal voltage |
|
Current limit |
0 - 600% of motor FLA |
|
Acceleration time |
1 - 120 seconds |
|
Deceleration time |
1 - 60 seconds |
|
Kick start |
0.1 - 2.0 seconds, 10 - 100% of line voltage |
|
Under voltage trip |
70 - 95% (adjustable trip delay) |
|
Over voltage trip |
105 - 130% (adjustable trip delay) |
|
Under current trip |
20 - 90% of motor FLA (adjustable trip delay) |
|
Over current trip |
100 - 300% of motor FLA (adjustable trip delay) |
|
Allowable re-starts |
0 - 10 (adjustable time inhibit) |
|
| |
Motor and starter protection
|
|
Electronic overload |
Inverse time, 75 - 150% of motor FLA |
|
Electronic shear pin |
Trips within 1 cycle of setpoint |
|
Phase loss |
One or more phases missing |
|
Phase sequence |
Phase sequency incorrect |
|
Over voltage |
Trips at high line setpoint |
|
Under voltage |
Trips at low line setpoint |
|
Stall protection |
Starting process is not complete |
|
Shorted SCR |
Internal fault detected |
|
Error connection |
Internal faulVmotor connection |
|
Starter over-temp |
Heatsink over temperature |
|
| |
Metering
|
| Current |
Phase A, B, C & average current |
| Thermal data |
Thermal capacity of motor |
| Power |
KVA, KW, KVAR, power factor, KWH |
|
| |
Line start section
|
Load break/fault make disconnect switch with automatic grounding arm and viewing
window
Fuses with blown fuse indicator
In-line vacuum contactor * |
|
* 13.8 kV, 600A softstarters use circuit breakers for isolation and bypass functions. |
Control power transformer with fused primary/secondary
Packaged in common enclosure with soft start
Optional "Soft Start" (requires customer supplied line start
panel) |
| |
Statistical data
|
Total amount of run time since soft start was reset
Amount of time it took motor to start during last period
Maximum current during last start period
Total number of starts since soft start was reset
Event history for last 60 events |
| |
Elevation
|
|
1000 m /3300 ft. without derating (contact factory for higher elevations) |
| |
Enclosure CD *
|
|
* 13.8 kV softstarters are rated NEMA 1. |
NEMA 12, top and bottom entrance plates
11 gauge steel
ASA #61 gray paint with lifting eyes |
1724 Tomich Court