Case Studies

ManualsBrandsFluke ManualsPower Quality AnalyzersFluke 435 Series II

Application Note

Problem Description:

Because power quality issues

are difficult to pinpoint, clients

often reach the wrong conclu-

sions about their power issues.

That often leads to expensive

solutions that don’t actually

correct the underlying problem.

In one example, a facility

hired a consultant to complete

a site planning assessment

survey for a proposed new

server room. The server room

was intended to minimize

performance risks and reduce

reliability problems.

Measurements taken

As always, the consultant

started by collecting baseline

readings. Connecting the Fluke

434 to the secondary side of

the transformer, he checked

the View Config screen (Fig. 1)

diagram to verify proper

connections. Switching to the

phase view, (Fig. 2 & 3) the

consultant checked polarity and

voltage levels. The voltage and

current phase arrows were too

far apart for normal operations.

Something was wrong with the

power factor.

Low power

factor

From the Fluke Digital Library @ www.fluke.com/library

Measuring tools: Fluke 434 Power

Quality Analyzer

Features:

Low power factor

Power

Quality

Case

Study

Fig. 1 View configuration screen

Fig. 2 Phase View-Volts

Fig. 3 Phase View-Amps

Summary of content (2 pages)

PAGE 1
Low power factor Power Quality Case Study Measuring tools: Fluke 434 Power Quality Analyzer Features: Low power factor Application Note Problem Description: Because power quality issues are difficult to pinpoint, clients often reach the wrong conclusions about their power issues. That often leads to expensive solutions that don’t actually correct the underlying problem. In one example, a facility hired a consultant to complete a site planning assessment survey for a proposed new server room.
PAGE 2
Selecting the Power & Energy function from the menu, he examined the power factor (PF) (Fig. 4) and displacement power factor (DPF) (Fig. 5). Conclusion: Based on the information gathered with the Fluke 434, the consultant recommended a capacitor bank to correct the low power factor.