Fluke 434 II, 435 I, 435 II, 437, 437 II Service Guide

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It doesn’t take out the garbage... yet
Introducing the Fluke 430 Series Three-Phase Power Quality Analyzer
Application Note
It’s about time.
For the last several years, tool users have told Fluke they needed a three phase Power Quality Analyzer to audit and troubleshoot critical power appli­cations in the facility, starting at the service entrance.
No matter whether they were a consultant or a facility techni­cians, the story was the same: They needed to pinpoint power quality problems quickly, and for that, they needed detailed infor­mation. In particularly candid moments, some admitted that if the available monitoring devices
weren’t so hard to use, so expen­sive, or so heavy to lug around, they would probably conduct preventive maintenance more
.
often
Fluke’s answer is the 430
series handheld power quality
zer.
analy
Three-phases and four
channels Rated for use at the service
entrance: CAT IV 600 V/ CAT III 1000 V Sets up in less than one
minute Simple, menu-driven interface
Automated recording and
analysis
Weighs just over three pounds
Includes analyzer, case, 4
Troubleshooting and preventive maintenance for all
Designed for power quality specialists as well as electricians and plant technicians working in industrial, healthcare, business, and public services settings, the Fluke 430 Series is ideal for troubleshooting and preventive maintenance.
The Fluke 430 Series can measure all phases, neutral and ground on virtually every con­nection in a low voltage electrical distribution system. The analyzer’s measurement capabilities encom­pass all power system parameters including true-rms voltage and current, frequency, power, power consumption (energy), unbalance and flicker. They also automati­cally capture events like transients (as fast as 5 microseconds and as high as 6 kV), interruptions, rapid voltage changes and dips and swells.
Optimized for mobile applications, these ruggedized instruments operate up to seven hours on a single battery charge — no more searching for an outlet! The large data memory stores up to 50 screens and up to 10 measurements each comprising 32 parameters — including setups and trend data — recorded for more than a year, all of which can be transferred to a PC via FlukeView or use in reports.
® software for analysis
From the Fluke Digital Library @ www.fluke.com/library
Fluke 430 series features
The two most unique features are AutoTrend, which records every­thing on the screen automatically without setting a trigger, and System-Monitor, a quick diagno­sis of system performance against user defined limits. Other features include:
Viewing stored data while
continuing to record. Switching back and forth from
digital display to trend without interrupting the recording. Optically isolated so you can
record while downloading information to your PC. High resolution, color LCD
for viewing multiple parame­ters and multiple phases simultaneously. Waveform capture lets you
test for interaction between phases or between voltage and current. Triggering on envelope — or —
trigger on rms voltage or current. Screen cursors allow you to
pinpoint problems, quickly. Capturing transients and
waveform disturbances with 5 µs resolution. Toggling to phase or display at
any time for a quick check of phase sequence.
Together these features help to
quickly diagnose problems and
enchmark
build b maintenanc study provides one such example.
s for predictive
e. The follow
ing case
Case study: Three-phase motor failure
or three years in a row, a partic
F ularly large three-phase motor would fail twice a year. The facil­ity maintenanc in both the electrical contractor and the motor manufacturer, who pointed fingers at each other but failed to resolve anything on site. The facility was left in the mid-
ith no c
dle, w cyclical motor repair costs, and lost production from the repeated
ntimes
dow
e manager called
orrective action,
.
Tired of what was clearly a pattern failure, the facility manager hired an independent consultant. The consultant told the facility manager he would perform a complete power quality survey of the electrical distribu­tion system feeding the motor, determine its operating character­istics and work from there to solve the problem.
Measurements
The consultant connected his Fluke 434 Three-Phase Handheld
ower Quality Analyzer to the
P
ircuit supplying energy to the
c motor and pushed the View Config button firmed that his connections were proper and that the power type was three-phase Delta.
From there, he pushed the Scope button and looked at waveforms and numeric values for all three phases. Judging by the differences between the magni­tudes at the top of the screen, there appeared to b problem between the phases.
-
. The diagram con-
e a balanc
To gather more information, he switched to the numeric readout on the Voltz/Amps/Hertz screen. The current reading there was even higher and still unbalanced.
Switching to the Unbalance screen, he checked the voltage and current values as well as the phase diagram, to see if the motor was operating within acceptable limits.
e
2 Fluke Corporation Logging and analyzing events with FlukeView® Forms Software
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