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Power Factor Controller
Power Factor Controller
Schneider Electric offers a new range of Power Factor Controllers. These controllers alarms and displays the problem occurred on the network or the capacitor bank. The alarm message is maintained on the screen until it is manually removed. If necessary, the capacitor steps are automatically disconnected to protect the equipment. These controllers are available in three different ranges like
RT6 / 8 / 12 (Classic Range): for simple applications. Available in 6, 8 and 12 steps.
NR6 / 12 (Advanced Range): for Universal applications. Available in 6 and 12 steps.
NRC12: for Universal applications. Available in 6 and 12 steps.
General Characteristics:
- Analyses and provides information on network characteristics
- Controls the reactive power required to obtain the target power factor
- Monitors and provides information on equipment status and alarm indication
- Communicates on the Modbus network (Varlogic NRC12).
| Parameters | Classic | Advanced | Advanced |
| Model | RT6 / RT8 / RT12 | NR6 / NR12 | NRC12 |
| Supply voltage | 400V | 110 / 240 / 415 | 110 / 240 / 415 |
| Auto/Manual mode | Yes | Â | Â |
| Back light display | LED | Yes | Yes |
| Various step sequences ( 1:1:1, 1:2:2, 1:2:4) | Yes | Yes | Â Yes |
| Delay time | 10-1800 secs | 10-600 secs | 10-900 secs |
| 4 Quadrant operation for D.G. Application | - | - | Yes |
| Dual Target Power factor | - | Â | Â Yes |
| Load & reactive currents, voltage & powers (KW,KVA & KVAr) | Yes | Yes | Â Yes |
| Total Voltage Harmonic distortion(THD-V) | - | Yes | Â Yes |
| Total Current Harmonic distortion(THD-I) | - | Â | Â Yes |
| Voltage & Current harmonic spectrum(3,5,7,11 & 13) | - | Â | Â Yes |
| Capacitor current overload | - | Â | Â Yes |
| Capacitor capacitance loss | - | Â | Â Yes |
| Over Compensation | Indication | Ind. + Contact | Yes |
| Low Power factor Indication | Indication | Ind. + Contact | Â Yes |
| Fan Contact | - | Yes | Â Yes |
| Low Current message | - |  Yes |  Yes |
| High Current message | - | Yes | Â Yes |
| Under voltage message | - | Yes | Â Yes |
- Simplified programming & intelligent self setup
- Ergonomic layout of control buttons
- Large easy to read backlit display
- Easy to configure setting menu
- Instant display of critical measurements
- Capacitor for Special Applications(MD-XL- Ultra Heavy Duty)
- Excessive temperature conditions (up to 70o C)
- Over-current handling Capacity up to 2.5 times and inrush current handling capacity up to 400 times
- Unique technology in self heating Capacitor with proven life Expectancy up to 1,60000hrs
- Safety: Pressure Sensitive Dis-connector, Self healing, Inbuilt discharge resistors etc.,
- Network with Harmonic loads up to 25% and employs automatic PF correction & harmonic filters
- Recommended for highly Fluctuating Loads: Welding, Furnace, Rolling Mills, Cement, Pharma, Chemical, Textiles etc.,
- Better reliability & life expectance than a Non Self Healing (APP 7ype) capacitor
- New control algorithm designed to reduce the number of switching operations and quickly attain the required power factor
- Simple mounting and wiring
- Insensitive to current transformer polarity and phase rotation polarity
- A special menu allows controller self configuration
- Measurement of total current harmonic distortion
- Spectral analysis of network harmonic currents and voltages
- Immediate display of the network’s main parameters
- Possibility of dual target power factor
- Configuration possible with fixed step
- Step condition monitoring (capacitance loss)
- Online users help menus
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