Basler Electric BE1-87T - Manual (Page 107)

9171300990 Rev V BE1-87T Test Procedures 5-11
Step 3. Set the input under test to the 3.9 tap position as shown in Table 5-2. Set the RESTRAINED
PICKUP LEVEL switch to position A (15%). Apply current to the input under test, increasing
the current until the REST. TRIP LED lights. At this point, the input current should be 1.36 A
± 6% ±100 mA.
Step 4. Repeat Step 3 for the additional tap positions shown in Table 5-2. This verifies the accuracy of
all the binary combinations of the rotary switches.
Step 5. Test the other inputs by reconnecting to the next pair of terminals for your relay and repeating
Steps 3 and 4. (The successful completion of these tests will verify the electrical integrity of all
the tap switches.)
Table 5-2. Input Verification*: 5 A, 50 or 60 Hz
Tap† Position Input Current Range at Pickup
3.9 1.18 - 1.55 A
4.3 1.31 - 1.70 A
6.4 2.01 - 2.47 A
7.8 2.47 - 2.99 A
* Pickup occurs at 0.35 x Tap. See Figure 1-2.
† The setting of the upper and lower INPUT switches of the input being tested.
(Reference Location of Controls and Indicators.)
Unrestrained Pickup Verification
Step 1. Set the INPUT 1 (tap) switches to the 2.0 A position. Connect the relay as appropriate (refer to
Figures 5-1 through 5-4) using terminals 11 & 13 (Input 1 for both single-phase and three-
phase units).
Step 2. Set the UNRESTRAINED PICKUP LEVEL switch to position A (6 x TAP). Increase the input
current until the UNREST. TRIP LED lights (disregard the REST. TRIP LED). This should occur
at 12.0 A ± 3% as indicated in Table 5-3.
Step 3. Repeat Step 2 using the other UNRESTRAINED PICKUP LEVEL switch positions given in
Table 5-3.
Step 4. For Three-Phase Units Only: Repeat Steps 1 through 3 for phase B of input 1 (terminals 12 &
13) and Phase C of input 1 (terminals 14 & 13).
Table 5-3. Unrestrained Pickup Verification: 5 A, 50 or 60 Hz
Unrestrained
Pickup Level
Input 1 Tap
Position
Input Current at
Pickup ±3%
A (6 x TAP) 2.0 12.0 A
J (14 x TAP) 2.0 28.0 A
S (21 x TAP) 2.0 42.0 A
Second-Harmonic Restraint Verification
Step 1. Set the INPUT 1 (tap) switches to the 2.0 A position. Connect the relay as appropriate (refer to
Figures 5-1 through 5-4; except set both current sources to 0° for second-harmonic restraint
verification) using terminals 11 & 13 (Input 1 for both single-phase and three-phase units).