Vanguard DigiTMR User Manual download pdf (Page 31)

REV 3 DIGITMR USER’S MANUAL

3.5.3. Timing a CLOSE-OPEN Operation Using Contact Channel #1

The CLOSE-OPEN operation of a breaker simulates a condition where a breaker is closed on a

fault. To time a CLOSE-OPEN operation:

a. Start from the “START-UP” menu:

Press the [1] key (TIME BRKR) to start a test.

b. The following screen will be displayed:

Press the [1] key (NO).

c. The following screen will be displayed:

Press the [1] key (WINDOW = 1 SEC) to select the 1-second timing window.

d. The following screen will be displayed:

Press the [1] key (Internal Trigger) to select the internal trigger.

e. The following screen will be displayed:

Press the [4] key (C-O) to select the CLOSE-OPEN timing operation.

TIMING MODE

1. OPEN 2. CLOSE

3. O-C 4. C-O

5. O-C-O

TRIGGER MODE:

1. Internal Trigger

2. External Trigger

TIMING WINDOW:

1. WINDOW = 1 SEC

2. WINDOW = 10 SEC

3. WINDOW = 20 SEC

INSERTION RESISTOR?

1. NO

2. YES

1. TIME BRKR 04/17/09

2. GET RSLT 10:49:23

3. SET-UP

4. DIAGNOSTICS

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Vanguard DigiTMR User Manual Page 31