Automatic Load Shedding & Load Management Panels Pakistan
JME Energy & Automation engineers priority-based load-management systems that match connected demand to available grid, generator, solar or BESS capacity while preserving essential plant operations.
What does an automatic load-shedding system do?
The system continuously compares plant demand with the capacity and operating condition of available sources. When defined limits or contingencies occur, selected non-critical loads are disconnected in a controlled priority sequence and restored only when capacity and permissives allow.
Know available capacity
Use source status, electrical measurements, breaker positions and reserve thresholds as control inputs.
Protect essential operations
Classify critical, important and shed-able loads according to the plant’s operating requirements.
Shed and restore safely
Open selected breakers or contactors in stages and restore them using verified delays and permissives.
Load management across changing power sources
Generator overload prevention
Shed defined loads when connected demand approaches available online generator capacity.
Demand-limit control
Use staged load reduction to support a defined utility-demand or transformer-loading limit.
Stored-energy coordination
Coordinate load priorities with BESS power, state of charge and backup-duration requirements.
Solar and genset operation
Manage loads when renewable contribution, generator capacity and plant demand change dynamically.
Source-loss response
Apply fast or staged shedding when a generator, feeder or other power source becomes unavailable.
Controlled load restoration
Reconnect loads in sequence to avoid sudden demand steps and repeated system instability.
Engineered around the plant’s real SLD
JME defines the load-management philosophy from the actual sources, feeders, breaker types, control voltages, protection, operating modes and production priorities. The final solution may use PLC logic, dedicated controllers, metering, remote I/O, breaker-control relays and SCADA supervision.
Control logic operators can understand
Load study and priorities
Identify essential loads, flexible loads, step sizes, process constraints and acceptable interruption sequences.
Logic and interlocks
Define trigger thresholds, time delays, feedback verification, latching, overrides and restoration conditions.
Testing and handover
Verify I/O, simulated contingencies, breaker actions, alarms, SCADA indication and safe operator controls.
Automatic load-shedding FAQs
What is the difference between load sharing and load shedding?
Load sharing distributes demand between online sources, usually generators. Load shedding removes selected loads when available source capacity or operating conditions cannot support total demand.
Can existing breakers and contactors be automated?
Often yes, if suitable control coils, auxiliary feedback, interlocks, protection and safe operating provisions are available. JME verifies the installed arrangement before defining modifications.
Can loads be restored automatically?
Yes. Restoration can be staged using capacity margins, time delays, source stability and process permissives to avoid a new overload or sudden demand step.
Can the system work with SCADA?
Yes. SCADA can show source capacity, active loads, shed stages, alarms, breaker feedback, manual authority and operating history.
Can JME review an existing load-shedding panel?
Yes. Share the SLD, load schedule, source ratings, breaker details and present operating problem through JME’s system-recovery intake.
Need to protect generators and preserve critical loads?
Send your SLD, source ratings, load schedule and breaker details. JME will identify the practical control architecture and information still required.