Auto Var
| Features | Eco PF | Eco PF+ |
| Memory | Stores parameters and data in reliable e2prom memory |
| Input Power | Operates reliably under wide input voltage range using in-built SMPS Separate auxilary supply |
| Measurement | True RMS Measurement of V,I, VAr of three individual phases and computes cumulative required VArs. |
| Switching | Programmable Required KVAr (Lag/lead) Three Switching modes: 1) FIFO 2) Geometric (1:2:2, 1:2:4 etc.) 3) Intelligent In intelligent mode, KVAr requirement is assessed in one scan cycle and all required stages are switched on/off at a time intelligently Suitable for both Contactor Switching and Thyristor switching Settable switching delay from 0.5 seconds to 120 seconds Any stage can be set as permanently ON / permanently OFF / Auto |
| Programmable Paramet | Required KVAr, Switching Delay, Maximum Stages, CT Ratio, Minimum Switching KVAr, Under/Over Voltage Limits, Switching Sequence Stage Mode: On/Off/Auto Stage KVAr: KVAr of individual stage independently settable for intelligent switching mode |
| CT Ratio | Programmable 1 to 1000 |
| Display | 16 x 2 LCD Display Power Factor-3 ph, Phase/ Line Voltages-3 Ph, Line Currents-3ph, KW, KVAs, KVArs (Lag/Lead), Frequency |
| Stage on Indication | 16 x 2 LCD Display |
| LED Indications | Power On, Load Lag/Lead, Trip |
| Alarms | Low Current, Reverse CT Connections |
| Protection | Protection of capacitors by automatic disconnection in under/over voltage conditions |
| External TripWhy AutoVARs | N/O input to disable the switching operation from external contact such as thermostat, Auto/Manual toggle etc. Displays various electrical parameters to economize on instrumentation cost and also helps in |
| Communication | diagnostics No C/K Setting required MODBUS with RS-485 / RS-232 (Optional) |
| Additional Features | |
| Real Time Clock | In-built Real Time Clock with battery backup |
| Power Analysis | Monitoring and logging of various electrical parameters (V, I, PF, KW, KVA, KVAr, of all three phases, Frequency, KWH) at programmed interval on continuous basis Memory storage of upto 2160 records Data can be retrived on RS-485 port |
| KWH Meter | In-built KWH Meter of class 1.0 accuracy z ERDA Tested |
| Additional Features | |
| Capacitor Bank | Unique TEST MODE to locate 1) Low KVAr Output 2) Imbalance of 3 phase currents due to |
| Healthiness | oose connection, Healthiness damaged wire, worn out contacts or blown fuse. Measures capacitor currents in all three phases Display and retrivable storage of V,I, KVArs, Frequency for individual stage |
| Specification | Auto Var | Auto Var+ | Auto VARC/C+ |
| Operating Voltage | 170-270 Vac, 50 Hz |
| Maximum Power | 10 VA |
| Input Current | 1 A/5 A (Factory Set) |
| Stage Relay (In case of Contactor switching) |
230 Vac / 1 A, N/O |
| Stage Output (In case of Thyristor Switching) | 10-30 Vdc / 20 mA |
| Load CT Ratio | 1 – 1000 (Programmable) |
| Capacitor CT Ratio | NA |
| Input Voltage | R-Y-B-N Three Phase |
| Load CTs | 3 |
| Capacitor CTs | NA |
| Minimum KVAr | 1 to 100 (Programmable) |
| Required KVAr Setting | 0 -200 (Lag/Lead) (Programmable) |
| Number of Stages | 8,12,16 |
| Switching Delay | 0.5 to 120 Seconds (Programmable) |
| Switching Sequence | First In First Out (FIFO) Geometric – 1:2:2: - 1:2:4:4: - 1:2:4:8:8: Intelligent – Facilitates usage of unequal stages with optimized switching time delay |
| Memory | NA 2160 Records memory (Available only with “+” Model) |
| Communication | NA RS 485 with MODBUS (Available only with “+” Model) |
| Operating Temperature | 0 to 55 C |
| Maximum Humidity | 95 % RH (Non-condensing) |
| Dimension | 144mm x 144mm x 125 mm |
| Weight | 1300 grams |