The model 777 is a fully programmable
electronic overload relay. An alphanumeric LED display provide
programming and diagnostic information. Sixteen parameters can
be programmed. |
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1) Low voltage set point. |
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2) High voltage set point. |
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3) Voltage unbalance set point. |
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4) CT Size/Loop. |
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5) Over current Trip Point. |
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6) Undercurrent Trip Point. |
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7) Current Unbalance Trip Point |
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8) Trip Class (5, 10, 15, 20, 30) |
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9) Rapid-Cycle Timer (RD1) |
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10) Fault Restart Delay (RD2-Motor Cool-Down Timer) |
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11) Underload Restart Delay (RD3 Dry Well Recovery
Timer) |
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12) No. of restarts after an overload (Manual or Automatic) |
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13) RS485 Address. |
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14) Number of restarts after an underload fault. |
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15) Underload Trip Delay. |
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16) Ground Fault Trip Point. |
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