14 Enclosed Switching Products 0115 ABB Low Voltage

15 Enclosed Switching Products 0115 ABB Low Voltage

Functionality

OTM_C3D OTM_C8D

1. Automatic transfer switch products overview

1.1. Automatic control unit

OMD300

OMD800

1.1. Manual operation with handle

X

X

1.2. Local operation with front panel keypad

X

X

1.3. Automatic transfer switching equipment (ATSE)

X

X

1.4. Dual power source for the motor operator 1)

X

O

2. Measurements

2.1. Three phase voltage measurement on LINE1

X

X

2.2. Single phase voltage measurement on LINE1

X

X

2.3. Three phase voltage measurement on LINE2

X

X

2.4. Single phase voltage measurement on LINE2

X

X

2.5. Frequency on LINE1

X

X

2.6. Frequency on LINE2

X

X

2.7. Possibility to check measurements on LCD

X

3. Source failure detections

3.1. No voltage

X

X

3.2. Undervoltage

X

X

3.3. Overvoltage

X

X

3.4. Phase missing

X

X

3.5. Voltage unbalance

X

X

3.6. Invalid frequency

X

X

3.7. Incorrect phase sequence

X

4. Configuration

4.1. By DIP switches

X

4.2. By rotary switches

X

4.3. By keypad and LCD

X

4.4. Voltage threshold setting

X

X

4.5. Voltage hysteresis setting

X

4.6. Frequency threshold setting

X

4.7. Frequency hysteresis setting

X

5. Time delays

5.1. Switching delay

X 2)

X

5.2. Delay on transfer 3)

X

5.3. Dead band time I-II (stop switching to position O)

X

5.4. Back-switching delay

X 4)

X

5.5. Dead band time II-I (stop switching to position O)

X

5.6. Generator stop delay

X 5)

X

5.7. Status of time delays on the LCD

X

In the enclosed ATS the dual power source is included

Comments

1) Dual power source allows the motor operator to be supplied by two

separate voltage supplies. This way the motor operator is always energized.

2) Four options: 0, 5, 10 or 30 seconds.

3) Delaying the switching sequence before transferring to generator,

guaranteeing that in cold locations the generator is properly heated up.

4) Two options: the duration of back-switching delay is the same as switching

delay, i.e. the time delay is same for I - II and II - I, or the back-switching

delay is fixed 300 seconds.

5) Two options: the duration of generator stop delay is the same as Switching

delay or fixed 5 min.

6) Menus available in eight languages; English, French, German, Italian,

Spanish, Russian, Chinese and Finnish.

7) Two-way communication, bus communication protocol is Modbus

8) In case of source failure, the controller can be supplied with an external

auxiliary supply with 24…110 V DC.

9) Automatic control unit requires an external signal before allowing the

transfer to secondary.

10) Two options for the operating mode after receiving the alarm: control unit

either works normally, or initiates generator stop with operation to position O.

11) Two options: No line priority, or Source 1 is the priority source.

12) Three options: No line priority, Source 1 or Source 2 is the priority source.

13) Automatic back-switching to primary source is prevented.

14) Automatic control unit and motor operator must be energized.

X = includes as standard

O = as an accessory

Enclosed automatic transfer switches

Controllers technical specification