Ensuring your power system is adequately designed to satisfy your performance criteria often requires engineering services like a load flow study. Load flow studies identify and correct power system issues, such as overloads, load imbalance, harmonic problems, poor power factor or other operational issues.
Load flow studies performed by Vertiv engineers help you keep capital and operating costs to a minimum by identifying and correcting power system issues. Using software that simulates actual steady-state operating conditions, our power system experts are able to virtually investigate multiple scenarios that may be altering your facility’s load, creating operational or performance problems.
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Load monitoring is performed by connecting instrumentation at the main supply switchgear or other key locations where load data is needed. Monitoring equipment measures current and voltage. For a typical three-phase system where the load is to be monitored at the main switchgear, three current probes and three voltage probes are attached to the three-phase conductors, and one voltage probe is attached to the neutral conductor.
The other end of the probe lead wires are connected to a power recording instrument. These connections and the recording instrument must be connected at each location where load data is needed. For systems operating at 600 volts or more, this process may be a little more complicated. Direct connection to the facility electrical conductors may not be possible if the load current or system voltage exceeds the capability of the instrumentation. In these cases, potential transformers and metering current transformers may be used to provide current and voltage signals needed by the recorder.
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