Description

computer SMART III 12, Power factor regulator

Code: R13862.

• Alarm relay: Yes
• Communications: RS-485
• Measurement Range (V): 20…300
• IΔn (A): yes
• Power supply (Vac): 100…520 Vac
• Nr steps: 12
• Input current: …/5A | …/1A
• Switching unit: Contactor

INFORMATION

DESCRIPTION

Measurement with three current transformers guarantees an analogue reading of the company meter. The Computer SMART III reactive energy regulator is the only regulator on the market that offers the possibility of using 3 measurement transformers in addition to the conventional method of measuring with a single current transformer, as well as providing the functions of an integral power analyzer and controlling residual leakage currents (WG series current transformers).
Computer SMART III is a regulator that ensures excellent preventive maintenance by means of programming its alarms and the options for testing the capacitor status, offering maximum supervision and safety of your compensation unit.

APPLICATIONS

The connection of 1 or 3 transformers makes Computer SMART III the perfect regulator in any installation, allowing the following:

• Changing from 1 to 3 transformers in the following cases:
  • Changes in reactive energy penalties
  • Changes in consumption habits
  • Significant imbalances in the system
• Replacing the regulator of any capacitor bank
• Perfect for installations with up to 4 objective cos φ, since it can adapt to any compensation need (different time periods).
• It can be used with Medium Voltage compensation units.

• SPECIFICATIONS
• AC POWER SUPPLY
• Installation category
• CAT III 300 V
• Consumption
• 13 … 20 VA
• Frequency
• 50 … 60 Hz
• Nominal voltage
• 100 … 520 V ~
• MECHANICAL CHARACTERISTICS
• Size (mm) width x height x depth
• 144 x 144 x 71 (mm)
• Envelope
• Plastic V0 self-extinguishing
• Fastening
• Panel
• Weight (kg)
• 0,6
• ENVIRONMENTAL CHARACTERISTICS
• Protection class
• IP 51 (Front), IP 31 (unmounted)
• Relative humidity (without condensation)
• 5 … 95%
• Storage temperature
• -20 … +70 ºC
• Working temperature
• -10 … +55 ºC
• CURRENT MEASUREMENT CIRCUIT
• Nominal current (In)
• …/5A ó …/1A
• Phase current measuring range
• 1 … 120 % In
• Minimum current measurement
• 50 mA
• VOLTAGE MEASUREMENT CIRCUIT
• Installation category
• CAT III 300 V
• Sampling frequency
• 45 … 65 Hz
• Input impedance
• 660 kΩ
• Voltage measuring range
• .. 300V Ph-N, 35…520V Ph-Ph
• Nominal voltage
• 230 V Ph-N, 400 V Ph-Ph
• COMMUNICATIONS
• Fieldbus (ModBus)
• RS-485
• Stop bits (ModBus)
• 1-2
• Parity
• non-pair-impar
• Protocol
• Modbus RTU
• Speed
• 9600-19200
• STANDARDS
• Electrical safety, Maximum height (m)
• 2000
• Standards
• IEC 61010, IEC 61000-6-2, IEC 61000-6-4, Medidas conforme a : IEC 61557-12
• USER INTERFACE
• LED
• 4 LED
• Keyboard
• Capacitive, 5 keys
• Display type
• LCD Custom COG
• DIGITAL INPUTS
• Input/output insulation
• Optoisolated
• Quantity
• 2
• Type
• Potential-free contact
• LEAKAGE CURRENT MEASUREMENT (ID)
• Secondary nominal current
• 0,003 A
• Minimum current measurement (Istart)
• 10 mA
• Measurement range
• 0,01 … 1,5 A
• DIGITAL RELAY OUTPUTS
• Quantity
• 14 (12 salidas, 1 ventilador, 1 alarma)
• Maximum current
• 1A
• Maximum open contact voltage
• 1 kV
• Electrical life
• 30 x 10³ciclos
• Mechanical life
• 5 x 10⁶Cycles
• Maximum switching capacity
• 2500 VA
• DIGITAL TRANSISTOR OUTPUTS
• Quantity
• 2
• Type
• NPN
• Maximum current
• 50 mA
• Maximum voltage
• 24 Vcc
• MEASUREMENT ACCURACY
• Phase current measurement
• 5% ± 1 digit
• Reactive energy measurement (kvarh)
• Class 2
• Reactive power measurement (kvar)
• 1% ± 2 digit
• Active energy measurement (kWh)
• Class 1
• Phase voltage measurement
• 5% ± 1 digit