Inputs
The Power Quality Monitoring and Compliance application collects data from the connected products of the electrical installation to monitor and report on the power quality situation.
-
For main incomers and critical feeders, power quality can be monitored on a continuous basis by power quality meters such as the PowerLogic ION9000, PM8000, and high-end models of the PM5000 series. These meters are capable of capturing sub-cycle power quality events (transients, voltage sags and swells, etc.).
-
For less critical circuits, steady state disturbances can be acquired either by embedded metering in protection devices such as the PowerLogic P5/P3 relays, MasterPacT MTZ circuit breaker, or by entry-level models of PM5000 power meters.
The following table outlines the limitations and capabilities of the connected products with respect to power quality data capture:
|
Product |
Flicker measurement |
Transient detection |
Disturbance direction |
Sag/swell monitoring |
Harmonic distortion: total/individual/interharmonics |
Waveform capture |
|---|---|---|---|---|---|---|
|
PowerLogic ION9000 |
Yes |
Yes (20 μs) |
Yes |
Yes |
Yes |
|
|
PowerLogic ION9000T |
Yes |
Yes (100 ns) |
Yes |
Yes |
Yes |
|
|
PowerLogic PM8000 |
No |
No |
Yes |
Yes |
Yes / Yes / No |
Yes |
|
PowerLogic PM5000 |
No |
No |
No |
No |
Yes (+TDD*) / Yes / No |
No |
|
PowerLogic P5 |
No |
No |
No |
Yes |
Yes / Yes / No |
Yes, on trip event only |
|
PowerLogic P3 |
No |
No |
No |
No |
Yes / No / No |
Yes, on trip event only |
|
MasterPacT MTZ |
No |
No |
No |
No |
Yes / Yes / No (with additional digital module) |
Yes, on trip event only |
The following table specifies how to select the right power meter depending on the chosen standard:
|
Product |
EN 50160 compliance reporting |
IEC 61000-4-30 Class A/S |
IEEE 519 |
IEEE1159 |
CBEMA, ITIC, SEMI F47 |
|---|---|---|---|---|---|
|
Yes (web, PME EN 50160 Report)* |
Class A |
Yes (web, PME Harmonic Compliance Report)* |
No |
Yes (web, PME PQ Report)* |
|
|
|
Yes (web, PME EN 50160 Report)* |
Class S |
Yes (web, PME Harmonic Compliance Report)* |
No |
Yes (web, PME PQ Report)* |
The following data are required to enable Power Quality Monitoring and Compliance:
Electrical Measurements
-
Voltage, current, and power measurements need to be captured accurately and with a high sample rate.
Power Quality Steady State Disturbances
-
Voltage and current harmonics
-
Voltage and current imbalance
-
Voltage fluctuations (flicker)
-
Frequency variations
Power Quality Events
-
Transients
-
Interruptions
-
Voltage sags and swells
-
Overvoltage and undervoltage
Electrical Signal Waveforms
-
High sample rate sinusoidal waveform data for all phases of voltage and current
Process Status (Optional)
For some additional and optional analytics, such as the impact of processes or operations resulting from power quality events, an impact signal is required. This signal can originate from several sources such as:
-
Electrical signal (for example, current or voltage drop)
-
Hardwired signal from a process PLC (such as Modicon M340) or signal from a digital input (for example, from a meter)
-
An OPC tag served by an OPC server
User Inputs (Optional)
Additional optional user inputs such as outage cost can be input into the software analysis configuration to provide an estimate of the financial impact of power quality.