Designing a hatchery's electrical system
Uninterrupted electrical energy is critical to optimising incubation and other hatchery processes.
Should power from the grid be interrupted or fail, a back-up generator with Automatic Voltage Regulator and auto switch-over will protect normal hatchery operations.
Generators typically load up to 80% of their capacity for continuous operation. However if there is a risk of frequent power failures, a second standby generator is recommended. Keep generators close to the main power supply and fuel storage area.
Stability of supply is also important. Voltage should not exceed +/- 10% variation - and frequency not more than +/- 2% of nominal value.
Individual Uninterrupted Power Supply (UPS) is recommended - particularly for incubator controllers, ethernet switches, automation controls, computers, alarms and other key electrical functions - as this protects all the hatchery’s electronics in the event of a system-wide failure.
Finally in terms of protecting your supply, make sure your system is grounded. This not only protects users, but also ensures that electronics operate reliably.
Calculating system load
Total connected electric load is expressed as ‘Installed Value’. The hatchery may consume up to its total connected load, or Installed Value, either completely or in part during operation, but this load cannot be exceeded. Cables and fuses should be selected based on Installed Value.
Because electrical consumption varies, average consumption will be lower than the Installed Value. Incubators may, for example, use heating or cooling, but not both, depending on the age of the embryos. And not all motors in the hatchery- for example on hatchery automation - will run 24/7.
Total Electrical Load is calculated by adding all duty equipment (excluding standby-equipment) plus a contingency for spare or unforeseen load requirements. Depending on the accuracy of the electrical system’s design, this could in practice mean an aditional 10-20% spare capacity
Safety & compliance
Follow local electricity board regulations when choosing...
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