Substation Protection

Product 1

SEL-401

Protection, Automation, and Control Merging Unit

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Product 2

SEL-421

Protection, Automation, and Control System

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Product 3

SEL-787-2/3/4

Transformer Protection Relay

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Product 4

SEL-TMU

TiDL Merging Unit

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Product 4

SEL-487V

Capacitor Bank Protection, Automation, and Control System

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Product 4

SEL-487E

Transformer Protection Relay

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Product 4

SEL-2414

Transformer Monitor

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Product 4

SEL-487B

Bus Differential and Break Failure Relay

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Product 2

SEL-352

Breaker Failure Relay

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Product 2

SEL-787Z

High-Impedance Differential Relay and SEL-HZM High-Impedance Module

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