Verification and calibration, General, Equipment required – Basler Electric BE1-25A User Manual

Page 59: Preliminary instructions, Verification and calibration -3, General -3, Equipment required -3, Preliminary instructions -3

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Step 5. Depress the FUNCTION SELECT switch twice to cause the figure 4 to appear as the left-most

digit of the display. As indicated on the front panel chart, this is the register that stores the
maximum slip rate. Using the INCREMENT/DECREMENT switch, adjust the display digits to
read .100, then raise the LOAD switch and hold it raised for about two seconds until the display
goes from blank to 4.100. The maximum slip rate is now loaded.

Step 6. Step the display to the next register which is 5 (GENerator UnderVoltage). Enter and load 65,

using the previous procedures.

Step 7. To change the LOCKOUT condition (i.e., from ON to OFF to ON, etc.): Select function 6 and

raise the LOAD switch for approximately two seconds. The display will toggle to the opposite
condition that it held. (Lon stands for lockout ON, Lof for lockout OFF.)

The setup procedure is complete. If you wish to place the relay into service, you can park the display at a
parameter that you wish to monitor, such as ADVANCE ANGLE or BUS VOLTS.

VERIFICATION AND CALIBRATION

General

This paragraph is an introduction to the specific verification and calibration procedures given later in this
section.

Equipment Required

• Two dynamic frequency sources calibrated to 1.0% accuracy
• One oscilloscope
• One digital voltmeter
• One counter
• One stopwatch
• One phase angle meter

Preliminary Instructions

The various verification tests may be done independently. However, certain assumptions and blanket
instructions apply as given in the steps that follow.

CAUTION

Before placing the Auto-Synchronizer into service, be sure that the LOCKOUT
ON/OFF register (6) is set to system requirements. When OFF, the Auto-
Synchronizer is free to repeatedly close the breaker into a fault.

NOTE

Operate the Reset lever to return to the READING registers after changing
settings.

CAUTION

The BE1-25A Auto-Synchronizer can be tested before installation using the
bench-test setup shown in Figure 5-1.

9146600990 Rev S

BE1-25A Testing

5-3

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