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Power Fundamentals

Relay protection

Relay protection uses sensors, logic, and protective devices to detect abnormal conditions and trip breakers. Protection design must coordinate utility and customer equipment so faults are isolated quickly without unnecessary outages.

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Lithium-ion battery

Lithium-ion battery is a high-energy-density battery chemistry commonly used in modern UPS and BESS systems. It can reduce footprint and maintenance compared with older chemistries, but it requires careful thermal, fire, and controls design.

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Cross connect

Cross connect is a dedicated physical or logical connection between two endpoints inside a data center or campus. It can connect customers to carriers, cloud on-ramps, other tenants, or internal network nodes.

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Tax abatement

Tax abatement reduces or exempts taxes for a defined period or amount to encourage investment. For data centers, abatements may be tied to capital investment, jobs, equipment, local approvals, and performance commitments.

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