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NV Start 15kW-450kW
Soft Starts for AC Motors
Soft
Start , Why Use Them
Soft start is the one method of
motor starting. Reduce starting current, adjust starting
torque for various load better over conventional motor
starting circuit. :
Mechanical
* Reduce Coupling Failure
* Reduce Belt Slip
* Reduce Water Hammer
* Reduce Gear Breakage
* Reduce Product Damage
Electrical
* Reduce Inrush Current
* Reduce Supply Voltage Dips
* Reduce Nuisance – Tripping
* Reduce Flickers In Lighting System
* Optimum Starting Current
Economic
* Reduced KVA Demand
* Energy Saving
* Save The Supply Capacity
* Save Cabling Costs
* Reduced Maintainance Cost
NOVEM NV Start Advantages
The
NOVEM NV Start is an Intelligent Microprocessor – Based
Control unit for starting AC Induction motor range from
15 – 45 kW. That provides a cost – effective solution
for controlling AC induction motors in a unique compact
design.
Advantage over other
soft start:
- Limit Starting Current
- Minimum Starting Time
- Reduce Voltage When Stop
- Kick – Start for Static Friction Load
- True rms Current R
eading
- No Hunting or Cogging
- Phase Loss Protect
Digital Setting
Easy
to use completed with digital programming and digital
display of all operating parameters.
Monitor Indicates
motor current, setting value, cause of trip, and other
data.
Status Display
Indicates operating status.
Run/Stop keys
Used for normal run, decelerating
stop, free – run stop (preceded by the function setting).
Up/Down keys
Used for adjust parameter names and data values.
Program/Enter keys
Switches the soft start control
mode and set operation data.
NV Start Terminal Connections
Common Specifications |
| Rated operational voltage |
380 v. – 10% + 20% |
| Norminal input frequency |
50 Hz |
| Motor output |
15 – 450kW |
| Rated operational current |
30 – 840 A. |
| Ambient temperature during operation |
0 - + 400 C |
| Ambient temperature during storage |
- 10 - + 400 C |
| Degree of protection |
IP – 20 |
| Acceleration time |
0.5 – 60 Sec |
| Deceleration time |
0 – 240 Sec |
| Starting voltage |
10 – 60 % |
| Step down voltage |
100 – 30 % |
| Current limit |
200 – 500 % |
| Rated motor current |
70 – 100 % |
| Signal relay rated operational voltage |
240 V.A.C. |
| Signal relay rated operational current
at AC 11 (240 V) |
3 A. |
| Electronic overload protection |
Built – in |
| Contactor bypass |
Built – in |
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NOVEM NV Start Selection
Guide |
