UNITROL 1010 3BHE035301R1002 UNS 0121A-Z,V1 UN1010-0001 ABBcontrol unit

The installation plate must be electrically grounded (PE). Electrical installation For detailed information on electrical installation, refer to the User Manual. CAUTION! Separate control (I/O) cables from the excitation (power and measurement) cables to avoid electromagnetic interference. Cable dimension requirements: Grounding Connect the AVR to the protective earth at terminal 17 with a 4 mm2 grounding wire. Make an additional grounding connection through the mounting holes to the installation plate (if it is connected to the protective earth) or with a 4 mm2 cable to the protective earth. Make sure that the grounding connections are as short as possible. Additional signal ground terminals are provided for the control cables. Inrush current limitation The large internal DC capacitor of the AVR can cause a high inrush current especially with a strong voltage source. WARNING! To prevent damage to the AVR, make sure that the inrush current is not more than 200 A for 10 ms. To prevent damage to the AVR from a high inrush current: To calculate the inrush current, you can use a capacitor voltage of 0 V at startup.

The external resistor for a 200 V AC input is typically 1.5 Ω. Power and measurement terminals 1) To reduce wiring, you can connect each phase of the excitation power inputs (PWR) and auxiliary power supply inputs (AUX) with the included jumpers. Commissioning For detailed instructions on commissioning, refer to the User Manual. Commissioning procedure overview: 1. Make sure that all of the connections are correct and safe. 2. Download the configuration file to the AVR. Make sure that the parameters are correct. 3. Examine the digital and analog I/Os in standstill. 4. Do tests with the machine: a) Standstill

• Measure resistance of exciter stator winding. b) No load condition

• Increase the speed of the machine to nominal.

• Start excitation in Manual mode and increase the manual setpoint until machine voltage is 50%.

• Use CMT 1000 to verify the AVR measurements and compare them with other equipment used, such as protection devices.

• Increase the setpoint until the machine voltage is 100% and tune the AVR with the AVR tuning assistant.

• Do step response tests to examine performance in Manual mode and Auto mode. c) Machine connected to grid

• Select AUTO (voltage regulator).

• Increase the AUTO setpoint to verify the polarity of the of IM measurement. Q must increase. d) Do step response tests to examine performance in Auto mode and direct VAR regulator modes. 5. Finalizing commissioning a) Save the parameters on the AVR and verify the status with CMT 1000. b) Save backup files for project documentation.