3196 데이터 시트보기 (PDF) - ASM GmbH

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3196

POWER QUALITY ANALYZER

ASM GmbH 

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Capture all power anomalies without fail!

Problems with power quality are all around us

Have you ever experienced any of the following ?

• Flickering lights

• Light bulbs burn out quickly

• Electronic office equipment does not function properly

• Sometimes devices operate abnormally

• Overheating in facilities using condensers fitted with

reactors

• 3E (electrical overload, reverse phase, or phase loss) relays

sometimes trip

These types of problems and others are often due to degraded power quality.

Discovering the cause can be difficult

The quickest way to solve power problems is to have a clear

understanding of the cause, and be able to determine where the

phenomenon occurred. However, it is not always possible to

accurately grasp all of the various types of anomalies that may

occur on power lines, even when using recording or harmonic

analysis devices to investigate them.

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Dedicated measuring instruments are required in

order to accurately grasp these kinds of anomalies.

Fully identify the many phenomena hiding in your power lines

Overlooking the smallest of power anomalies

can lead to enormous financial loss. Checking

the quality of your power lines is the best way to

prevent problems before they occur.

● Transient Overvoltage (Impulse)

Phenomenon :

Occurs due to lightning or circuit breaker/relay

contact damage or closure. Often involves

radical changes in voltage with high voltage

peaks.

Damage :

In the vicinity of the event, high voltage often

damages equipment power supplies or causes

devices to reset.

● Voltage Dip

Phenomenon :

Caused by momentary voltage drops resulting

from large rush current in loads, such as when

starting up a motor.

Damage :

The drop in voltage may cause devices to stop

operating or reset.

● Voltage Swell

Phenomenon :

Caused by lightning strikes or opening/closing

power lines with heavy loads, causing the

voltage to swell momentarily.

Damage :

The surge in voltage may damage equipment

power supplies or cause devices to reset.

● Instantaneous interruptions

Phenomenon :

An instantaneous or short/long term power

supply interruption caused by accidents at the

power company (such as interruption of power

transmission due to lightning strike) or tripping

of breakers due a power supply short.

Damage :

Thanks to the increasingly widespread

adoption of uninterruptible power supplies, equipment such as computers

is increasingly protected against this problem. However, it may still cause

other devices to stop operating or reset.

● Harmonics

Phenomenon :

Often occurs due to voltage/current waveform

distortion when a semiconductor control device

is used in a device's power supply.

Damage :

When harmonic components become too

large, they can cause serious malfunctions, such as overheating in motor

transformers, or burn-out of reactors connected to phase advance capacitors.

● Unbalance factor

Phenomenon :

Voltage/current waveform distortion and voltage drops

or voltage phase reversals can occur when the load

on a particular power line phase increases due to load

fluctuations or imbalances.

Damage :

Voltage imbalance, reverse phase voltage, and

harmonics can result in events such as uneven motor

rotation, tripping of 3E breakers, and overheating due

to transformer overloading.

● Flicker (IEC, ∆V10)

Phenomenon :

Caused by blast furnaces, arc welding, and

thyristor-controlled loads, and involving

regularly repeated voltage impulses spanning

one or more cycles.

Damage :

Because this phenomenon is cyclically repeated, it may cause lights to

flicker or devices to malfunction.

The 3196 can

simultaneously

measure, record, and

analyze all of the above

phenomena.

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