The SEL-RPM stores energy for riding through interruptions of all input sources. The ride-through time depends on the input voltage, the load, and the device dropout voltage. Use the following calculator to estimate the ride-through time.

Description | Value |
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Ride-through time (T [seconds]) |

With its stored energy capacity, the SEL-RPM can power relays and provide energy for trip coils. Use the following calculator to help determine the maximum ride-through time that will ensure enough energy is available to energize connected trip coils.

Description | Value |
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Maximum time after power loss of all sources at which trip coil should be energized (t1 [seconds]) | |

Minimum voltage at the SEL-RPM output at which trip coil should be energized (V _{t} [volts]) |