Double finalist in the Electrical Industry Innovation Awards 2012, the Ranger PM7000FLM is the first ever commercially available instrument capable of predicting peak and RMS fault current by observing natural disturbances on the network.
As well as predicting the network fault current during normal operation, the PM7000FLM can also measure the same Power Quality parameters as Outram’s top of the range Power Quality Analyser the Ranger PM7000S.
The PM7000FLM can be portable or panel mounted and will work up to 132kV predicting the fault current using radial network disturbances of as little as 0.15% (on voltage).
The larger the disturbance the greater the confidence in the answer. The Ranger FLM will give the peak and RMS Fault Level Result, the confidence weighting and a time stamp as to when the result was generated.
Immediate Uses of the Ranger Fault Level Monitor
- Validate your existing models. Confirm all sources of fault current are included in your predictions.
- Give un-modelled areas a value. Obtain fault level values for areas of the network where models don’t exist or it’s difficult to obtain them, e.g. sections of the 11kV or Low Voltage network.
- Establish local fault level. Measure the fault level at the point of common coupling (PCC) to enable accurate assessment of the impact of harmonic emissions for Engineering Recommendations such as IEEE519 and G59/2.
Benefits of measuring the Network Fault Level
- Health and Safety: Identify unknown problems.
Identify and manage previously unknown conditions on the network and mitigate the risk.
- Operational: Optimise management of network interconnections.
Find out if it’s possible to make connections where previously thought to be restricted.
- New Connection Possibilities: Plan for additional load with more certainty.
Better predict the effect of harmonic emissions e.g. with respect to IEEE519.
- Financial Rewards: Save money through improved regulatory performance.
Use accurate monitoring to plan re-enforcement more effectively and remove perceived fault level issues.
- Environmental: Let your equipment work longer.
Help the environment and save money by not performing unnecessary infrastructure upgrades.
- Environmental: Increase renewable generation connection.
Measure the real impact on fault level enabling more and faster connection.
Product Specifications (partial list - further spec on www.outramresearch.co.uk)
Input Voltage:4 input channels. 0-600Vac or 0-1000Vac (if internal AC power supply disconnected). Sensors: In-line shrouded 4mm banana sockets. Fused voltage leads, crocodile clip.
Input Current: 4 input channels. Sensors: Two ranges on two types. Menu Selectable Rogowski coil 0-6000A, 0-400A, or Voltage Type 0-1 Vac. Safety BNC Socket. Phase reversal in software.
Five distinct simultaneous Recording Systems:
Waveform capture: High Speed sampling on all inputs.
Troubleshooting: Utilising the patented single cycle Adaptive StoreTM to capture comprehensive detail over long recording periods on up to 32 selected parameters.
General Parameter Analysis / Trends: > 470 parameters recorded automatically and simultaneously enabling reporting to recognised Standards.
RMS Event Database: Monitoring for ‘official’ power quality events such as sags/surges/interruptions.
Fault Level (optional): ½ cycle Peak Fault Level, RMS Break Fault Level at 50-100ms and ½ cycle. Results dependent on presence of abrupt voltage induced current disturbances > 0.15%. Downstream Motor Contribution.
Configurations: Space for over 200 files. These may be used for configuration or recording sessions.
Accuracy*: 0.2%. 0.1% in reference range 20-30°C (excluding sensors). +/-2LSB.
Resolution: Programmable to 0.1 Vac and 0.1 Aac, 0.01V high resolution mode.
General Parameter measurement: Records automatically. Fixed functions recorded on (selected) intervals. (1 sec to 2 hours). Voltage & Current RMS (Max, Min, Avg). THD / Harmonic Value (8 inputs), Flicker (3 Voltage inputs). Power (kW, VAR, AP, PF), Individual Harmonics 2-50 (8*50 signals on Volts and Current) or optional choice of 2-100 (4*100 on Volts or Current). Unbalance.
Troubleshooting Maths Functions:
AC Single Phase Installation: RMS, Stray Voltage RMS Hi Res < 35V, (line-neutral, line-line where appropriate). Real power W, Reactive Power VARS, Apparent Power VA, Power Factor PF, Displacement Power Factor, Phase Angle, Frequency, Instantaneous Flicker Sensation, Short Term & Long Term Perceptibility, Flicker Flag, Distortion Power.
AC 2 (split) Phase Installation: Real Power, Reactive Power VARS, Apparent Power, Power Factor.
AC 3 Phase Installation (Delta, Wye and variants): Real Power, Reactive Power VARS, Apparent Power, Power Factor, Voltage Unbalance, (Conventional & Sequential Components), Current Unbalance. Distortion Power, Positive Sequence Fundamental Real & Reactive Power (IEEE1459).
Harmonics: Odds, Evens, Triplens, Individual Harmonics value to the 127th and % and Harmonic Direction to the 50th, K Factor, % Total Harmonic Distortion, Total Harmonic Value. Interharmonics.
Symmetrical Components: Positive, negative, zero sequence: NPS, NPS/PPS (Voltage and Current), ZPS, ZPS/PPS (Voltage).
Other Maths Options available
Waveform Capture: Sample rate – up to 1.2288 Ms/s in the PM7000T (~ 20,480 samples/cycle at 60 Hz) on 8 channels. Events examined, Ranked & stored in real time.
Selectable waveform parameters:
Wave Retention Basis: Greatest disturbances (automatic ranking and low rank discard) and first past a threshold.
Capture wave bracket: Wave Sets: from 20ms up to 60secs. Can be contiguous; no re-arming.
Signals to be captured: offending wave / complementary current or voltage, All Voltages, All Currents.
Triggers to be used: Transient, Ring, Notch, Sag, Surge, THD Volts, THD Current.
Further spec to be found on www.outramresearch.co.uk