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For fast compensation, improved sensitivity, 12+2 outputs  NOVAR 1312 and NOVAR 1312-3 reactive power controllers (governor, PFC) is designed for compensation systems where conventional governors with relay outputs to control circuit breakers do not meet special requirements. These are usually systems where rapid frequent changes in reactive power take place or systems with strict requirements on electromagnetic noise suppression and power quality.
The governor allows up to 25 control interventions per second. Together with KATKA thyristor switching modules, it provides optimal control of reactive power compensation. Combined compensation systems utilizing both thyristor switching modules and circuit breakers are also possible to be build with this governor. NOVAR 1312-3 differs in that it has three current inputs and process sum of all three phase current signals. Therefore, it allows fast compensation according three-phase power factor. Related Documents
Communication OptionsNOVAR power factor controllers do include an optional galvanically isolated communication line - either RS485 or Ethernet. It enables remote monitoring of all the measured values, states and also perform configuration of the device. For communication with the device there are two similar protocols available - MODBUS and KMB. Complete setup, parametrization and data analysis can be performed with ENVIS v.1.1 software suite free of charge. The licenced ENVIS.Online system service can also automatically monitor and record the measurements from NOVAR PFC. If predefined condition is met ENVIS sends out an alarm (email, SMS, SNMP Trap). The older software RETIS can be also used to manage these PFCs with limited set of features. Accessories for for Reactive Power Compensation
With our power factor controllers we also supply all other necessary components - compensation capacitors, chokes, contactors, current transformers and other. For mor information and quotes please contact us. | LV and HV capacitors form ZEZ Silko |  Affordable compensation and de-compensation chokes by ELEKTRA | PEWATRON's current transformers with both compact and split cores (X/5 and X/1) | Benedict&Jager contactors
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IP 65 COVER - transparent plastic cover to improve front panel protection (IP-65)
- availavle for booth 96x96 and 144x144 mm
Technical parameters Adjustable parameters | power factor desired | 0.80 ind. through 0.80 cap. | | control speed | 1 to 25 control interventions in one second | | reconnection lock–out time | 0.1 to 10 seconds | | smallest capacitor current (C/k value converted to CMT primary side) | (0.002 ÷ 2 A) x CMT ratio | | choke control limit power factor | 0.80 ind. through 0.80 cap. | | setting compensation section values | automatic or manual | | setting connection mode | automatic or manual | Inputs–Outputs | power supply | 100 ÷ 275 V AC, 43÷ 67 Hz, max. 7 VA | | measuring voltage | 57.7 ÷ 690 V AC +10/-20%, 43÷ 67 Hz | | voltage measurement accuracy (RMS value and 1st harmonic) | ±1% ± digit | | voltage input impedance | > 800 kΩ | | measuring current (galvanically isolated) | 0,002 to 7 A | | current input serial impedance | < 10 mΩ | | current measurement accuracy (RMS value and 1st harmonic) | ±1% ±1 digit | | harmonic component and THD measurement accuracy | ±5% ± 1 digit (for U,I > 10% of range) | | temperature measurement range / accuracy | -30 to 60 °C, ± 5 °C | | number of outputs in transistor section | 12 | | output transistor load capacity | maximum 100V / 100 mA | | number of output relays | 2 | | output relay load rating | 250 V AC / 4 A | | “alarm” relay load rating | 250 V AC / 4 A | | second metering rate input (galvanically connected, for connection of insulated contact optron | 30 Vss / 5 mA | | installation overvoltage class / pollution degree | for measuring voltage up to 300 V AC | | for measuring voltage over 300 V AC | III-2 in compliance with EN 61010-1 II-2 in compliance with EN 61010-1 | Operating conditions | working environment | class C1 in compliance with IEC 654-1 | | operating temperature | 40° ÷ +60°C | | relative humidity | 5 to 100 % | EMC | noise suppression level in compliance with | EN 50081-2
EN 55011 , class A
EN 55022 , class A | | immunity in compliance with | EN 61000-6-2 | Mechanical | enclosure | | | - front panel | IP40 (or IP54) | | - back panel | IP20 | | dimensions | | | - front panel | 144 x 144 mm | | - built-in depth | 80 mm | | - cutout | 138 x 138 mm | | mass | max. 0.7 kg | |
KATKA - Manual [390 Kb] 
