Basler BE1-67 Instruction Manual

Also see for BE1-67: Instructions

Basler BE1-67 Instruction Manual Manual pdf 70 page image

BE1-67 Testing 5-13WARNING!Each current input one-second rating is 50 times TAP or 500 amperes (whichever isless). Take care NOT to exceed the one-second limit. Allow one minute for coolingbetween each current application.Setting The PickupsStep 1. Perform the preliminary test setup.Step 2. Set the following controls to the positions indicated.! TAP SELECT switch to position A. (TAP is set to the minimum designated tap value of 2.25amperes, HIGH range.)! TAP CAL control fully CW.! INST control to full CW.Step 3. Apply nominal sensing voltage with a phase angle of 0° to the relay.Step 4. Apply a sensing input current of 7 x 2.25 amperes = 15.75 amperes at a phase angle of -60° (equalto the CHARACTERISTIC ANGLE setting).Step 5. Slowly adjust the INST control CCW until the instantaneous overcurrent output contact closes.Instantaneous overcurrent pickup is now set for seven times the time overcurrent pickup setting.Step 6. Reduce the sensing current to zero.Step 7. Set the following controls to the positions indicated:! TAP SELECT switch to position E! TAP CAL control to fully CWStep 8. Apply a sensing input current of 5.7 amperes.Step 9. Slowly rotate the TAP CAL control CCW until the TIMING LED lights. Time overcurrent pickup isnow set for 5.7 amperes and the instantaneous overcurrent pickup is set for 39.9 amperes.Step 10. Reduce the sensing input current to zero.Step 11. Adjust the TIME DIAL for a setting of 11. (This setting is determined from the characteristic curvefor timing type B6, Very Inverse, Basler Drawing 99-0928 which is included in Basler publication9 1907 00 999.) This setting will give a time delay of 0.6 second at 5 times pickup. This is thedesired coordination point based on the required settings for this example.)Setting The DirectionTo set the direction (characteristic angle) for the relay, the boundaries of the tripping region need to bedetermined. If, for example, the line impedance angle is known to be 60°, the boundary should be the linenormal to the line impedance. This line (through the origin) should extend from +120° to -60° as shown inFigure 5-10.Step 1 . Adjust the phase angle with the sensed current level at six amperes so that the sensed current(ITEST) lags the sensed nominal voltage input by 60°.Step 2. Slowly adjust the CHARACTERISTIC ANGLE control until the INHIBIT LED just turns OFF. Thecharacteristic angle of the relay is now set for 60°.Setting The Limited Range Of OperationTo set the limited range of operation to 40°, follow these steps:

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