| General characteristics - 8 and 12 step versions (DCRJ8-DCRJ12), the last two of which are programmable as alarm and/or fan control - Version (DCRJ12F) with 11 static outputs plus 1 alarm relay output - Digital microprocessor regulator for automatic power factor correction systems with output relays for the connection and disconnection of capacitor banks - For medium voltage systems (separate voltage input) and co-generation (4 quadrant operation) - Accurate and reliable power factor control of a system even in presence of high current and voltage harmonic content - Warrants optimal capacitor use for increased life using rational control of the capacitor operation and connection time - RMS voltage and current measure - Measure of average weekly power factor (last 7 days), capacitor overload, electric panel temperature, voltage and current harmonic content - Event viewing when harmonic overload limit exceeded - Harmonic content analysis of logged events complete with relative waveforms - Adjustable tripping sensitivity, integral switching time - Adjustable reconnection time delay (DCRJ8-DCRJ12) - No-voltage release protection - Protection against capacitor overload and panel overheating - Panel temperature sensor - Connection to remote NTC temperature sensor - Automatic set-up function (on DCRJ8 and DCRJ12) - RS232 and RS485 serial ports - Remote supervision software for personal computer interface and supervision for: fast set-up, function and alarm customising and automatic electric panel testing - Modbus®-RTU and ASCII communication protocols - Configuration of mixed static and electromechanical steps (DCRJ12F). Operational characteristics - Supply circuit Dual auxiliary supply voltage Ue: 110-127 / 220-240VAC Rated frequency: 50/60Hz ±5% Power consumption: 9.7VA (DCRJ8-DCRJ12); 9.2VA (DCRJ12F) - Voltage circuit Three phases without neutral Rated measuring voltage: 100-690VAC Rated frequency 50/60Hz ±5%, self configurable - Current circuit Rated current le: 5A (1A on request) Overload peak: 20le for 10ms Power consumption: 0.3VA - Measurements and controls Type of voltage and current measurements: TRMS Voltage measure range: 85-760VAC Current measure range: 2.5 to 120% le External temperature measure range: -40...+85°C Capacitor overload current range: 0-250% Power factor adjustment: 0.8 inductive - 0.8 capacitive Reconnection time of same step: 5-240s (DCRJ8 - DCRJ12) Tripping sensitivity: 5-600s/step Sampling time: »20ms (DCJ12F) - Output relays for DCRJ8-DCRJ12 8 or 12 steps, the last of which is isolated Contact configuration: Normally Open (NO); the last of which is a changeover type Rated capacity: 5A 250VAC (AC1) Maximum capacity of common terminal: 12A Rated operational voltage: 250VAC Operational category: B300 Maximum switchable voltage: 440VAC - Outputs for DCRJ12F 11 static outputs for static contactors control 1 alarm relay output Opto-isolated bi-directional static outputs (Opto-Mosfet) Maximum operational voltage: 40VDC-30VAC Maximum operational current: 55mA - Housing Flush mounting Degree of protection on front: IP41; IP54 with protective cover 31 PACR. Certifications and compliance Certifications obtained: cULus, GOST. Compliant with standards: IEC/EN 61010-1, IEC/EN 61000-6-2, CISPR 11/EN 55011. Contactors for power factor correction For use with DCRJ8 or DCRJ12, see section 3, page 3-12. |