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Rockwell Automation Publication 1608M-IN002A-EN-P - January 2016
MegaDySC Dynamic Voltage Sag Corrector
Specifications
Table 2 - Technical Specifications 400 A MegaDySC System
Electrical Input/Output (Normal Mode—Static Switch)
Connection Configuration
Series-connected with load. Under normal line condition, the static switch passes utility voltage directly to the load
Standard Input Voltage DySC
3-Phase: 380, 400, 415, 460, 480V
1
Voltage Range
±10%
Static Bypass Current
400 A-rms continuous, 150%-400% @ 5 s, 400%-600% @ 0.5 s, 600% @ 0.1 s
Frequency
50/60 Hz Auto Sensing
Frequency Range (tracking)
45…65 Hz
TVSS
Output SPD, 80kA/mode. Protects L-L & L-G on all models; L-N & N-G (4-wire models)
Efficiency
> 99%
Phase (wiring)
3 Ground (3-wire models) or 3 N Ground (4-wire models)
Electrical Output (Sag Correction Mode—Inverter)
Sag Detection Voltage
88.5% of rated voltage
Response Time (typical)
0.7 ms detection, 1.2 ms inverter reaction (<2 ms)
Output Voltage
Pre-sag rms voltage
Voltage Regulation
±5% typical, +5% / -13% of nominal max
Output Current
400 A-rms
2
Crest Factor (at rated load)
1.45
Load
Power factor -0.5 …+0.9. Not rated for DC loads; max. allowable 2% DC loading
Voltage Waveform
Sine-wave
Voltage Sag Correction Times
Single Event
3 phase 87% to 50% voltage remaining
5 s
All three phases to zero voltage remaining
50 ms (SR) or 200 ms (ER). Based on nameplate ratings with a power factor of 0.7
Multiple Events
Max Sag Correction Time
5 s cumulative usage
Sequential Sag Recovery
0 s (assuming cumulative Runtime available)
Full Recovery Time
Max. 5 minutes
Mechanical
Enclosure Ratings
NEMA 1 (IP20)
Cable Entry
Top or bottom of switchboard section
Cooling
Filtered forced air
Access
Front for installation and service
Environmental
Ambient Temperature
0… 40°C (32°F…104°F)
Storage Temperature
-40 …+ 75°C (-40°F… 167°F)
Relative Humidity
0 …95% non-condensing
Altitude
Rated current available to 1000m (3300 ft). De-rate output current 10% per 1000 m, from 1000 m …3000 m
(9900ft).
Audible Noise
< 70 dBA at 1 m
Safety and Compliance
Agency Approvals
cULus Listed (UL 1012)
Standards Compliance
Exceeds SEMI F47 Standard; IEEE Std C62.41.1 and UL 1449 3rd Ed. Compliant
1. MegaDySC has not been evaluated for use in corner grounded or ungrounded delta power systems in systems rated over 240V.
2. When using with motor drive loads, either insert 3% to 5% line reactance at output or limit motor drive loads to 60% of MegaDySC system rating.
