UPS

TEC products PQMv2 770px

QUALITY CATEGORY

TYPICAL EFFECTS AND PROBLEMS MEASUREMENT METHOD TYPICAL CAUSES

TYPICAL SOLUTIONS

Transients Random equipment failures
Computer data errors
Peak Hold
Rise Time
Pulse Duration
Lightning
ESD
Load switching
Surge Arrestors
Ultra Isolation Transformers
Line Voltage Conditioners
Filters
Sags / Surges
Slow > 100ms
Computer data errors
Power supply failures
Peak / Trough Hold
Pulse Duration
Load Switching
Motor Starting
bullet Voltage Stabilisers
Ferroresonant Transformers
Dropouts/Surges
Fast < 30ms
Lighting flicker
Computer data loss
Random equipment reset / errors
Peak / Trough Hold
Pulse Hold
Load Switching
Fuse Clearing
Arc Furnaces
Electronic Voltage Stabilisers
Ferroresonant Transformers
Mains Voltage Compensators
Line Voltage Conditioners
Under / Over
Voltages
torque reduction
Motor overheating
Motor burnout
Circuit breaker tripping
Power supply failure
RMS vs Time
Statistics
Waveform
Peak / RMS
Industrial Sites
System Overload
Load Shedding
Tap Changing

K-Factor Transformers
Ferroresonant Transformers
Mains Voltage Compensators

Voltage Stabilisers

Voltage Flicker
Lighting problems / flicker
Transformer noise
bullet Monitor screen wobble
Flicker Meter- Magnitude/Frequency Modulation Frequency Tap Changing
Load switching
Load Variations
Electronic Voltage Stabilisers
Ferroresonant Transformers
Harmonic Current Distortion 3 Phase Neutral cables overheating / fires
Transformer burn outs
High neutral to ground voltages/circulating currents
THD Spectrum Analysis (3 Wire / 4 Wire ) Non Linear Loads
Variable Speed Drives
System Resonance
K-Factor Transformers
Passive Filters
Active Harmonic Conditioners
Harmonic Current Distortion Single Phase   Transformer overheating / fires
Monitor screen wobble
THD Spectrum Analysis Non Linear Loads
Variable Speed Drives
Passive Filters Series/Parallel
Ferroresonant Transformers
Active Harmonic Conditioners
Harmonic Voltage Distortion Random equipment resets / crashes
Clock problems
Synchronising problem due to to multiple zero crossings

THD Spectrum Analysis

(L-L) 

(L-N) 

(N-E)

High levels of non linear current
Variable Drives
System Resonance
High Impedance
Electronic Voltage Stabilisers (Waveform correction option)
Active Harmonic Conditioners
Interruptions and Power Failure Black outs
Data loss
Production line down time
Duration against time Fuse fault clearing
Load Shedding
Auto reclosers
Uninterruptible Power Supply
Back up generator (local)
Bad Power Factor High maximum demand
Over sizes supply
kVA/kW
kVAR
Motor Loads
Lighting Systems
Power Factor Correction
Capacitor Banks fixed/auto

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CL DgreyL outline 4ptv2



The Claude Lyons Group
2 Tower House, Hoddesdon, Herts, EN11 8UR, England
Spares are obtainable from www.lyons-instruments.co.uk who are stockists of surplus Claude Lyons units and spares .

E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

Company registered in England No 222791
Registered office as above

VAT Reg No. GB 213 5042 15

 

UK Established Since 1918

The Claude Lyons Group was founded in the UK in 1918 and is still in private ownership. Since our early days we have been innovators in areas related to voltage and power control and more recently in energy saving and harmonic mitigation. Operating as a global exporter with many years experience we can justifiably call ourselves a world leader in the field of voltage stabilisers, power conditioning and uninterruptible power supplies (UPS)