Basler Electric BE1-51/27C - Manual (Page 57)

9137200998 Rev E 51
Step 10. Adjust the test voltage for a 110 Vac output, and then slowly increase its output voltage until the
appropriate front panel VOLTS INHIBIT or VOLTAGE INHIBIT indicator just illuminates.
RESULT: The voltage should be >120 Vac.
Note
For relays having two-phase-and-neutral sensing, three-phase
sensing, or three-phase-and-neutral sensing (sensing input types A,
D, P, T, or J) remove power and reconnect the input sensing to each
of the remaining phases (see Figures 31 through 35), each time
repeating Steps 1 through 10. Ensure that the voltage sense terminals
and the current sense terminals are connected to the same phase.
When all phases have been tested, the voltage control test is
concluded. If the instantaneous overcurrent Option 1-1 or 1-2 is
present, proceed to instantaneous overcurrent pickup.
Adjustments of Controls for Relay Operation
The following procedures set up the relay for use in a protective scheme. The procedures are arranged in
a logical sequence that prevents upsetting previous control settings. For relays not having certain options,
skip the corresponding adjustment paragraph. These paragraphs are identified by their headings.
TAP and TAP (NEUTRAL) Selector Setting
Note
Selection of one of the specific overcurrent pickup points provided by
the front panel TAP selector (and with the front panel TAP CAL
control fully CW) will permit a pickup point within
±5% of the selector
value without having to connect the relay to a test setup to verify the
setting. If present, the front panel TAP (NEUTRAL) selector and the
front panel CAL (NEUTRAL) control provide this function for the
neutral overcurrent pickup point.
However, if the desired pickup point falls between these front panel
TAP selector settings, or if the instantaneous overcurrent option 1-1 or
1-2 is present, the relay should be connected to a test setup for a
precise setting, then the following steps should be performed.
Step 1. Connect the test setup to the relay according to the sensing input type present in the relay as
follows:
(a) Sensing Input Type L: Refer to Figure 30. Because the relay front panel TIMING indicator
provides the needed pickup indication, do not connect the test setup to the output
terminals. The current sense terminals for the desired range (HIGH or LOW), however,
should be connected to the relay.
(b) Sensing Input Type J: Refer to Figure 35. Because the relay front panel TIMING indicator
provides the needed pickup indication, do not connect the test setup to the output
terminals. The front panel TAP selector is ganged and the adjustment of one input phase
automatically aligns the other, thus, only one set of current sense terminals need be
connected. For adjustment of the front panel TAP (NEUTRAL) selector, the relay is
reconnected for neutral sensing by this procedure.
BE1-51/27C Tests and Adjustments