KBR multimess D9-PQ
20144 EDEBD
A0228-5023-1_EN
10
4. Technical Data
4.1
multimess D9-PQ Description
The new Power Quality Analyser and sequence of events recorder
multimess D9-PQ for low, medium-voltage grids is the central component of a
system with which all measurement tasks in electrical grids can be solved. The
multimess D9-PQ can be used as either a Power Quality Interface in accordance
with grid quality standards or as a measuring device for all physically defined
variables in three-phase grids.
In addition to standard evaluations, the multimess D9-PQ also features a high
speed sequence of events recorder with a recording rate of 40.96kHz/10.24kHz
as well as an 10ms RMS recorder. This enables a detailed evaluation of faults in
the grid.
In particular, the component is suitable for monitoring, registering, evaluating
and recording special reference quantities or quality agreements between the
energy supplier and the customer
Modern Power Quality measuring devices operate in accordance with the
IEC 61000-4-30 (2008) standard. This standard defines measurement methods
in order to create a comparable basis for the user.
Devices from different manufacturers that operate according to this standard
must give the same results.
The standard distinguishes two classes of measuring devices:
Class A devices are used mainly for measurements relating to contracts in
customer-supplier relationships.
Class S devices can be used to determine statistical quality values.
The multimess D9-PQ meets all demands of the
IEC 61000-4-30 (2008) standard for a class A device.
Parameter IEC61000-4-30
Class
Power frequency
A
Magnitude of the Supply Voltage
A
Flicker
A
Supply voltage dips and swells
A
Voltage interruptions
A
Supplv voltage unbalance
A
Voltage harmonics
A
Voltage interharmonics
A
Mains signaling voltage
A
Underdevation and overdeviation
A
Measurement aggregation intervals
A