Siemens DTU3005-B Especificaciones descargar pdf (Pagina 35)

Solutions As we have learned, there are a number of things that can affect

power quality. The following table provides some basic

guidelines to solve these problems. It should be remembered

that the primary cause and resulting effects on the load and

system should be considered when considering solutions.

Problem Effect Solution

Sag Computer shutdown

resulting in lost data,

lamp flicker, electronic

clock reset, false alam.

Voltage regulator, power

line conditioner, proper

wiring.

Swell Shorten equipment life

and increase failure due

to heat.

Voltage regulator, power

line conditioner.

Undervoltage Computer shutdown

resulting in lost data,

lamp flicker, electronic

clock reset, false alam.

Voltage regulator, power

line conditioner, proper

wiring.

Overvoltage Life expectency of

motor and other

insulation resulting in

equipment failure or fire

hazard. Shorten life of

light bulbs

Voltage regulator, power

line conditioner.

Momentary

Power

Interruption

Computer shutdown

resulting in lost data,

lamp flicker, electronic

clock reset, false alam,

motor circuits trip.

Voltage regulator, power

line conditioner, UPS

system.

Noise Erractic behavior of

electronic equipment,

incorrect data

communication

between computer

equipment and field

devices.

Line filters and

conditioners, proper

wiring and grounding.

Transients Premature equipment

failure, computer

shutdown resulting in

lost data.

Surge suppressor, line

conditioner, isolation

transformers, proper

wiring, grounding.

Harmonics Overheated neutrals,

wires, connectors,

transformers,

equipment. Data

communication errors.

Harmonic filters, K-rated

transformers, proper

wiring and grounding.

Power Factor Increased equipment

and power costs

Power factor correction

capacitors.

1 2 ... 30 31 32 33 34 35 36 37 38 39 40 ... 87 88

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