HDPM6000 CT Type Table

[JohnVanGorp]

The "HDPM6000 CT Type Table" zip file attached to this post contains an updated HDPM6000 CT Type table file (CSV) that uses METSE reference names for most CTs available for the HDPM6000 platform. This approach should simply the task of assigning CTs to branch channels, allowing users to select CT names that match the METSE reference name printed on the CT label.

A HDPM6000 head unit maintains a CT Type table with calibration data for CTs that are compatible with HDPM6000 systems. Each CT entry in the table is given a unique name, CT factor (magnitude) value, and PHCAL (phase shift) value. The CTs defined in the CT Type table can be selected when configuring CTs connected to the head unit and branch circuit module channels within the Channel Cfg tab of the web user interface on the head meter. CT Type table files (CSV format) are used to add new CT entries to the CT Type table maintained by a HDPM head unit.

NOTE: Uploading a CT Type table file to a HDPM head unit does not delete existing entries in the CT Type table maintained by the head unit. Modifications to existing CT parameters in the table will be applied and new entries will be added.

The HDPM6000 Manager software utility is used to upload CT Type table files to a head unit. See the "HDPM6000 Manager" section in the HDPM6000 Head Unit Installation Guide for information about uploading a CT Type table to a head unit. HDPM6000 Manager is bundled with system firmware that is available in the Software and Firmware section of the HDPM6000 section of the se.com web site.

NOTE: HDPM6000 head unit firmware v62.7 and above supports up to 500 CT Type table entries. Head units with previous firmware versions support fewer table entries and may display an error if a CT Type table file upload adds new entries that exceed the table limit.

[JohnVanGorp · Accepted solution]

Updated the CT Type Table from v1.4 to v1.5. Changes introduced in v1.5 include:

• Added two new CTs (METSEHD600A60S and METSEHD1000A60S)
• Updated the CT Factor and PHCAL values for several CTs
• Removed CTs that were never offered for sale

[sesa510609_brid]

Hi John,

do you have anything later than v1.5 (HDPM6000 CT Type Table)?  I am looking for specifically the AccuEnergy CTs that are compatible with HDPM6000.  There is NO 800A available substitute.  Has it changed since v1.5?  thank you!

AcuCT-125R-150:250mV
AcuCT-200R-300:250mV
AcuCT-200R-400:250mV
AcuCT-3135R-600:250mV

AcuCT-3135R-1000:250mV

[Mehran_Mehrnia]

Hi @sesa510609_brid 

I have the CT table version 'SE CT Table Rev. 1.6' attached. Let's check if @JohnVanGorp  has a newer version beyond Rev. 1.6.

All five AccuEnergy CT models you listed are present in both Rev. 1.5 and Rev. 1.6, and none of them have changed. There is no 800A AccuEnergy CT listed in Rev. 1.6.

The only difference I can see in 'SE CT Table Rev. 1.6' compared to 'SE CT Table Rev. 1.5' is the addition of three new CTs, METSEHDPM50AxxP, METSEHDPM250A2Txx, and METSEHDPM500A2Txx which are compatible with the HDPM6000S24 24-Circuit Strip Module.

PowerLogicTM HDPM6000 Series Current Transducer Installation Manual

Best Regards,

-Mehran

L3 Expert Advanced metering

[Stuart_Cheng]

Hi Experts,

I'm not entirely sure about the purpose of the CT type table. Is it intended to reduce the measurement error of the CT?

For instance, our CT complies with IEC 61869-2, which means a CT rated as class 0.2, the error could reach 0.75% when the loading is below 20%. By uploading the CT type table, can we reduce this error? If so, how much correction can be achieved—for example, from 0.75% down to what percentage?

Thank you

[Mehran_Mehrnia]

Hi @Stuart_Cheng 

As mentioned in the HDPM6000 Installation Guide and in this forum, the CT Type Table is a configuration feature in the HDPM6000 head unit that stores calibration data for supported CTs. Each entry includes:

• CT Factor (magnitude correction)
• PHCal (phase shift correction)

These values are used to compensate for known inaccuracies in the CT's output, allowing the HDPM6000 to apply corrections during measurement. This is especially useful when using Schneider Electric’s METSE CTs, as the table is pre-populated with factory-calibrated values.

IEC 61869-2 defines CT accuracy classes (e.g., 0.2, 0.5, 1.0), which specify maximum permissible errors at various load levels. For example:

A Class 0.2 CT must have ≤0.2% error at rated current, but can have up to 0.75% error at 5–20% loading.

The HDPM6000’s CT Type Table does not change the physical behavior of the CT, but it compensates for systematic errors (e.g., ratio error and phase displacement) by applying correction factors, which can improve accuracy closer to the rated class even at lower loads, however, it cannot guarantee compliance with a stricter class (e.g., 0.1%) unless the CT itself meets that standard across the full load range.

Best Regards,

-Mehran

L3 Expert Advanced metering