NG # 02006-HW-SEL-013
Improve transformer safety and monitoring using SEL-487E. With six three-phase restraint inputs, three REF protection elements, and two three-phase voltage inputs, it ensures reliable performance.
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Get A QuoteThe SEL-487E limits transformer damage by responding to internal fault conditions in less than 1.5 cycles. The relay also helps avoid catastrophic transformer failure by detecting turn-to-turn faults involving as little as 2 percent of the total winding. The SEL-487E includes optional distance elements to provide transformer or line protection. You can minimize commissioning time and eliminate costly errors with included software that recommends matrix compensation settings.
Through-fault and thermal monitoring allow you to track transformer wear and schedule maintenance as necessary. Breaker wear monitoring reduces inefficient and costly breaker maintenance, saving time and money. Apply the SEL-487E-4, with its 6 voltage and 18 current terminals, as a station phasor measurement unit. Transform the way you modernize your substation with optional Time-Domain Link (TiDL) technology or Sampled Values (SV)-based technology using IEC 61850-9-2.
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