DVR

• OLED display with 128 x 61 pixel graphics capability, contrast adjustment and background/text color inversion, readable under any lighting condition, including direct sunlight;

• Power supply voltage from ±48 to 260 VDC or VAC, 50/60 Hz;

• Operating temperature from -20°C to 70°C;

• Storage temperature from -50°C to 40°C;

• Multifunction metering: on-screen voltage (VAC) indication for all 3 phases, current (AC) indication for all 3 phases, percentage deviation and reference voltage value, active, reactive and apparent power for all 3 phases, transformer load percentage, power factor (cos φ) and frequency for all 3 phases;

• VT/CT phase displacement adjustable from 0 to 330°, allowing VT and CT connections on different phases or on all 3 phases;

• 3 current inputs using split-core CTs to measure up to 10 amperes (AC);

• 1 resistive input (3-wire) for up to 5 kilohms or 4 to 20 mA analog input for indication of up to 51 tap positions, with automatic recognition of the potentiometric ring step;

• Front Micro USB port for parameter configuration using UseEasy™ software;

• 1 RS-485 digital output (ANSI/TIA/EIA-485-A) over optical fiber or 2 wires, with MODBUS RTU and DNP3 (Level 2) slave communication protocols for remote access to all measured parameters;

• Auto Baud Rate from 2,400 to 57,600 bps (automatically detects the communication network speed);

• 1 RS485 digital output (ANSI/TIA/EIA-485-A) with proprietary protocol (Slave/master) for managing parallel operation of up to 32 DVR or IPTP devices;

• 8 line-drop compensation setting groups using resistance and reactance settings or the simplified voltage drop percentage method (Z compensation), scheduled by time or selected by external command;

• Independent operating times for raising and lowering voltage, with linear, stepped linear or steep-curve timing modes;

• User-configurable OLTC blocking for overcurrent, reverse current and undervoltage;

• OLTC blocking and/or rapid voltage reduction;

• Automatic blocking of a runaway tap changer;

• 14 programmable relays rated at 6 amperes/250 VAC;

• 3 programmable digital inputs (dry contact);

• 5 configurable analog outputs: 0 to 1, 0 to 5, 0 to 10, 0 to 20 or 4 to 20 mA;

• Total resistance reading of the potentiometric ring and automatic calibration of the number of steps;

• Simple numeric, bilateral numeric and alphanumeric readout;

• Remote commands via hardwired digital inputs or MODBUS RTU and DNP3 L2 communication to RAISE / LOWER voltage or select the regulation setting group;

• Event notifications on the display showing the alarm name and the relay that operated;

• Using UseEasy™ software, all device parameters can be saved in editable files that can be used to configure other devices;

• 14 LEDs to indicate operation of the programmable relays, with the active event shown on the display;

• Watchdog to supervise the integrity of the potentiometric ring connection and tap changes when a command is issued;

• High mechanical strength enclosure made entirely of aluminum, DIN IEC 61544 standard;

• Compact dimensions: 98 x 98 x 98 mm;

• 2-year warranty;

- Operating temperature: -20°C to +70°C;

– Power consumption: <15 W;

– Voltage measurement input: 3 phases – 0–280 VAC – 46/64 Hz;

– Position measurement input: 1–51 positions – Potentiometric ring up to 5,000 ohms;

– Dry contact input: 3 inputs for dry contacts (potential-free);

– Current measurement input: 3 split-core CTs, 0 to 10 A;

– Maximum measurement input error: 0.25% of full scale;

– Maximum analog output error: 0.25% of full scale;

– Output contacts: 14 – Potential-free and programmable;

– Maximum switching power: 40 W / 250 VA;

– Maximum switching voltage: 250 VAC/VDC;

– Maximum carrying current: 6.0 A;

– Network serial communication port: MODBUS RTU and DNP3 L2 (slave);

– Auto Baud Rate and/or fixed speed: 2,400 to 57,600 bts;

– Front USB port: Micro USB;

– Data logger: MicroSD 8 GB v10 for data acquisition;

– DIN IEC 61554 enclosure: 98 x 98 x 98 mm – Aluminum;

– Device mounting: Flush panel mounting;

– Degree of protection (NBR IEC 60529): IP 40 (front), IP 20 (connectors);

- Measurement range: 0 to 10 A;

– Maximum measurement input error: 1% of full scale;

– Linearity: 1% of full scale;

– Operating temperature: -40°C to +85°C;

– Storage temperature: -50°C to +60°C;