User Guide ACB OC(G)R User Guide for ACB OCR that supports Russian Safety Cautions • Please make sure to read all safety precautions thoroughly before using this product • Please provide a copy of this user manual to end users and the maintenance manager. • Please keep this manual in an easily accessible place.

ACB OC(G)R User Guide for ACB OCR that supports Russian

Safety Precautions for the ACB OC(G)R ◈ Safety Precautions Thank you for purchasing the VITZRO EM ACB OC(G)R. These safety precautions provide important descriptions related to safety. Before starting any types of operations with the air circuit breaker, please read these safety precautions, the user manual, and other related documentation for appropriate use. Use this switch only after reading and understanding all of the safety information and precautions of this switch. In this user manual, the safety precautions are classified into three categories based on severity: [Danger], [Warning],...

The following is the warranty for the original Vitzro product purchaser. ■ arranty Conditions W • warranty of the Vitzro product lasts one year, during which period you can get support for the product itself. The ■ VITZRO shall not be liable for any warranty of the product damage caused by the following. If the product has been used without considering the installation information (rated power, CT, DI, DO, communication), power supply, PT/CT, and digital I/O rating that are specified in the product user guide. • If the product is damaged due to external artificial factors or the product installation...

1. Overview 1-1. Product Overview The Russian supported ACB OCR equipment monitors fault that can damage the protection area and controls ACB in the event of any such fault. This ACB OCR can support measurement, relay, and ACB Virtual performance testing, and controls ACB by being attached in front of ACB. 1-2. Product Specification The product specification is as follows 1-2-1) ating Specification R Item Wiring Type Rated Control Power Power Consumption Rating Current Measurement Range Measurement Accuracy M easuring less than 40 times of the rated current R ated current ± 3% F or continuous...

1-2-2) unctions and Configurations F 1) Measurement functions - Magnitude and Angle of the 3-phase current and neutral current - 3-phase current Vector Diagram - Symmetrical component of the current (Current Sequence) 2) Relaying functions - Long Time Delay - Short Time Delay - Instantaneous Time - Ground Fault Trip - Pre-Trip Alarm 3) Event recording functions - Fault history records:300 - Change history records:300 4) Additional functions - Load factor display - Setting Digital Output (Programmable DO) - Setting password - Improved Self-Test - Relay element fine setting - MCR function - PC...

Relay operation status display Graphic LCD RESET button ENTER button TEST button Cursor movement & setting value change button Back button Relay setting rotary switch Multi-functional external input port Engineering communication port If ACB is Opened as OCR detects Fault, MTD and OCR should be reset to maintain the normal state of ACB and OCR.

6) LED The LED at the top front of ACB OCR indicates the relay operation alarm or abnormal operation alarm. Each LED is described below. - PTA LED : It is lit when the PTA function is working - LTD LED : It blinks during Long Time Delay (LTD) Pickup, and it is lit when LTD Pickup is detected. - STD/INST LED : It is lit when Short Time Delay (STD) or Instantaneous Time (INST) is detected. - GFT LED : It is lit when grounding is detected. - Alarm LED : It is lit when there is a system problem during self-diagnosis, etc. 7) unction Button F The function buttons in front of ACB OCR are used to select...

8) Bottom Configuration The terminal block of ACB, ACB and the terminal to which ACB OCR is wired are at the bottom of ACB OCR. The configuration is as shown below. Digital Input - Unused terminal Digital Input - Unused terminal Voltage measurement - Unused terminal - Unused terminal Phase A current input - Phase A CT input terminal Phase B current input - Phase B CT input terminal Phase C current input - Phase C CT input terminal Neutral current input - Neutral CT input terminal - RS485 higher-level communication terminal

2. Function 2-1. Menu This ACB OCR is composed of the following menus. • MEASUREMENT You can check the measurement current and phase, and vector diagram. You can also check I0, I1, and I2. • SYSTEM You can set various factors such as the rated current, rated frequency, System wiring, communication, System time, password, language, Digital Output, and self-test condition. You can also clear the log information and check the version information. • RELAY You can set the operating current of protection factors (long time delay, short time delay, instantaneous) and operation delay time in details....

Select MAIN MENU → SYSTEM → MEASUREMENT to check. The measurement details you can check include the current, phase, vector diagram, and current sequence value. ▶ Menu navigation to open the current measurement screen ▶ Menu navigation to open the sequence measurement scree

2-4. Relay Russian supported ACB OCR supports Long Time Delay (LTD), Short Time Delay (STD), Instantaneous (INST), Ground Fault Trip (GFT) element, as well as various additional relay elements. Basic relay elements (LTD/STD/INST/GFT) can be set using the front rotary switch. Additional elements can be set using the display. The fine setting of the basic relay elements and neutral protection function are supported. Select MENU → RELAY → FINE SET to set in details. The current setting value of each relay element can be checked by selecting MENU → RELAY → RELAY SET. ▶ Rotary Switch ※Use the ◀/▶...

※Use the ◀/▶ key to change the settings confirmation page. ※Press the ENTER key to check the settings ※#. If the Rotary Switch is used, you will automatically switch to the SET CHECK