How long can pre-contingency thermal limits be sustained during an emergency?

Study for the PJM Transmission Test. Explore topics with flashcards and multiple-choice questions; hints and explanations included for every question. Ace your exam confidently!

Multiple Choice

How long can pre-contingency thermal limits be sustained during an emergency?

In an emergency, you’re allowed a short grace period to take corrective actions while keeping within safe thermal loading. That window is five minutes, giving time to re-dispatch, reconfigure the network, or shed load so the system returns to a safe level. Extending beyond five minutes would risk overheating and damage to the equipment, so the pre-contingency thermal limit can be sustained for only a brief five-minute period during an emergency.

In an emergency, you’re allowed a short grace period to take corrective actions while keeping within safe thermal loading. That window is five minutes, giving time to re-dispatch, reconfigure the network, or shed load so the system returns to a safe level. Extending beyond five minutes would risk overheating and damage to the equipment, so the pre-contingency thermal limit can be sustained for only a brief five-minute period during an emergency.

More practice questions