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Power Quality & Conditioning
TVSS/ Power Conditioners/ Harmonic Mitigation/ PDU's
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Storage Battery Systems, Inc. (SBS) is one of the nations leading authorities on AC and DC power quality concerns and solutions. Transient surge supressors (TVSS), power line conditioners, telecom line protectors, harmonic mitigation devices, power distribution units (PDU's) & battery/data center monitoring systems are only a few of the power qulity devices and apparatuses offered by SBS.
SBS also offers comprehensive power quality surveys and audits to insure power reliability and continuity. Additionally, complete harmonics & single point grounding-bonding analysis can be performed.
The often forgotten aspect of delivering distortion & noise-free power not only your sensitive electronic loads but the power electronics that support them can result in premature degradation or even failure of these systems. For a surprisingly small percentage of your system investement, 'insurance' in the form of protective hardware can dramatically increase your ROA.
SBS can apply the correct conditioning device to solve harmonics, transient, noise & waveform issues so that your power electronics deliver a maximum useful service life.
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Power Quality Mitigation
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Cause
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Harmonic Distortion, 3-5-7-9-11-13-15th
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Voltage & Current erratic waveforms
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Surges, swells, spikes - high voltage
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Drops, dips & brownout - low voltage
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Switching voltage transients
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Direct lightning strikes
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Frequency induced noise (RFI, EMI)
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Common mode noise - N-G
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Normal/Differential mode noise - L-N
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SMPS & non-linear loads draw current irregularly
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Generators are effected by THD current
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Utilities switching substations, grids
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Users on grid demand fluctuation
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TVSS across a grid shunts to ground & opens
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Massive dc voltage on conductors & ground
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Via transmitters, VFDs, inductive loads, PFCC
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Signal noise (mostly via capacitive coupling L-N)
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Signal noise from high power switching (relative)
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Ground loops, neutral-ground bonding issues
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| Impact of Power Quality Issues |
- harmonics cause larger currents in neutral conductors, oversizing them does not remove the problem
- these currents cause heating of all conductive elements, increasing resistance, causing further heating
- increased resistance results in increased demand for voltage &/or amperage stressing components
- high voltage reduces current demand temporarily - results in increased heat & exeeds component capacities
- low voltage increases current demand stressing power components
- switched loads spike & drop the voltage levels
- benign lightning causes voltage spikes & drops, direct lightning requires no additional explanation
- noise is induced or capacitvely coupled finding paths to SMPSs & electronics causing erratic operation with premature microprocessor, power supply & semi-conductor failure
- invariably, electrical anomalies force a path to neutral or ground via a component that cannot tolerate the voltage or current; 'noise' subtleties are likely responsible for undiagnosed mystery failures.
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