NOVATEK-ELECTRO LTD Intellectual Industrial Electronics RNPP-302 MULTIFUNCTIONAL THREE PHASE VOLTAGE MONITORING RELAY OPERATING MANUAL Quality control system on the production complies with requirements ISO 9001:2008 Review the Operating manual before using the unit. Store the unit in the operating environment for 2 hours before switching to the mains. Do not use abrasives or organic compounds for cleaning (spirit, gasoline, solvents, etc.). NEVER ATTEMPT TO REMOVE AND REPAIR THE UNIT. Some of the unit components may be live. NEVER ATTEMPT TO OPEN AND REPAIR THE PROTECTED EQUIPMENT, IF SWITCHED TO THE UNIT SOCKET. Do not allow any water on the contacts of the connecting blocks or inner elements of the unit. Do not use the unit in corrosive environments with the air containing acids, alkalis, oils, etc. www.novatek-electro.com - 2 - APPLICATION Universal Three phase voltage monitoring relay RNPP-302 (hereinafter RNPP-302) is designed for the permanent voltage monitoring, control and protection of the equipment with rated voltage parameters of 220/380V and 230/400V or 240/415V at rated frequency of 50Hz. RNPP-302 protects the power load from the following alarm situations and power faults: - over/under voltage, voltage surges and fluctuations, - phase loss, - phase coincidence, - wrong phase sequence, - phase imbalance in the AC power circuits - control over the full phase switching of the contactor - remote control input signal to operate with the power load as per requirement The RNPP-302 operates with the magnetic coil of the external contactor which in its turn operates with the power load. The RNPP-302 constantly checks (before and after turning on) the condition of the power contacts of magnetic contactor and detects the stuck together and burned contacts. When the power parameters return back to normal after the interruption or when the reason of the tripping is eliminated the RNPP-302 performs automatic reclosing and thus restart the equipment. It does so following a time delay (0-600 sec), set previously by the user. RNPP-302 relay may work in four independent modes: 1. phase loss monitoring mode without voltage level control (parameter = 0) 2. minimum voltage monitoring mode (parameter = 1) 3. maximum voltage monitoring mode (parameter = 2) 4. symmetrical min/max voltage monitoring mode (parameter = 3) The LED display of the RNPP-302 indicates: - Acting value (true RMS) of the phase voltage or alternatively line voltage depending on mode of operation - Voltage fault in mains power supply and the type of the interruption - State of output relay contacts (OPEN/CLOSE) NOTICE. The term rated voltage used in this device manual means that the input voltage corresponds all settings and parameters adjusted by user (see Table 2). Time countdown of the autoreclosing delay starts from the moment of the fault detection (not from the moment when the power parameters recovered to their corresponding rated values) During the countdown of the autoreclosing time delay LED indicator REL will blink in case of the normal power parameters. 1. MAIN FEATURES Digital input to turn ON/OFF the RNPP-302 remotely Changeover relay output (8A 250V at cos =1) for the operation by the magnetic contactor to commutate any desired power load Normally Opened relay contact (8A 250V at cos =1) for the signalization Measurement accuracy for tripping thresholds: not exceed 3V Rated phase/line voltage 220/380V (230/400V or 240/415V) The adjustable ranges for minimal voltage maximal voltage tripping phase imbalance time delays for the protection tripping automatic restart (autoreclosing) time and other adjustable parameters are shown in the Table 2. Rated power consumption: not exceed 5 W Protection degree of the enclosure case: IP40 Protection degree of terminal block: IP20 Operational temperature range, C: from - 35 to +55 Storage temperature conditions, C: from - 45 to +75 Weight not more than 0,3 kg Mounting: fit the standard 35 mm DIN-rail Mounting position: arbitrary - as per requirement Dimensions and control buttons are shown on Figure 1. RNPP-302 complies with requirements: IEC 60947-1:2004, D EC 60947-6-2:1992, DT CISPR 11:2004, IDT IEC 61000-4-2:2001, IDT. RNPP-302 NOVATEK-ELECTRO