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

[GREG.KADERA]

hello John, I tried to load the correct ct type and I not having any luck I have the below ct and its not a option on 75/ 1.834. can you help me please

CTMF-0075-0040-0040-I04A

METSEHDPM75A4

[Mehran_Mehrnia]

Hi @GREG.KADERA 

The CT type METSEHDPM75A4 exists even in older versions of the CT table (row 65). If it is uploaded to the meter, it should appear with the corresponding parameters as shown below.

The correct CT factor is 0.896, however, a value of 1.834, which is almost twice the correct factor, causes the measured values to be approximately double the actual values.

Best Regards,

-Mehran

L3 Expert Advanced metering

[GREG.KADERA]

thanks I found it

[zloggins]

We have 36 HDPM6000 systems installed with 21-str*p circuits, using the METSEHDPM75A4 CTs. The total wattage of each panel is reading off by about 30% as compared to the upstream metering. Is this a known issue or is there potentially a configuration issue?

[Mehran_Mehrnia]

Hi @zloggins 

A ~30% deviation between the HDPM6000 panel total and an upstream meter typically indicates a configuration or installation problem such as incorrect CT type, CT factor, hardware version mismatch between the configured CT type and the actual strip, etc.

If the CT type, factor, or hardware version is not aligned with the physical CTs and strip units, the system will scale current incorrectly, which directly results in power (kW) being off, typically by a consistent percentage.

Best Regards,

-Mehran

L3 Expert Advanced metering

[zloggins]

The programmed CTs match what is printed on the CTs themselves in the field, and we've not altered the CT factor. I updated the firmware for the HDPM6000S, the strips, and the 3-phase meter (even though it's not installed). Could the default CT factor for the METSEHDPM75A4 be incorrect in the CT table?

[Mehran_Mehrnia]

Hi @zloggins 

Depending on the hardware version of the strip unit, the CT factor differs. In this image, under the Taps tab, the hardware version of S21 is V2, therefore, the corresponding CT factor of 0.896 is used.

Following internal team discussions on this topic, the difference between CTMF-0075-0040-0040-I04 and CTMF-0075-0040-0040-I04A, which are associated with hardware version V1, results in CT factors of 1.793 and 1.261, respectively. This represents a deviation of approximately 30%, which may indicate that your S21 is hardware version V1, therefore, the appropriate CT type must be selected accordingly.

Best Regards,

-Mehran

L3 Expert Advanced meterinh

[JamTester]

Hi @Mehran_Mehrnia ,

I am having difficulty setting up the following CTs on the HDPM6000. The CTs are Hobut 160A/0.25V, Class 0.5 CTs.

I would appreciate any help/advice you can give.

Thank you,

[Mehran_Mehrnia]

Hi @JamTester 

The third-party Hobut 160A/0.25V CT, with a 250 mV secondary output, is a non-Schneider Electric CT and must be manually added and defined in the HDPM6000.

In the HDPM Web Interface, navigate to the Firmware Update tab. Check the row for the 3-phase meter to confirm whether you have Hardware v1 or Hardware v2/v3. Also, to benefit new features, it is recommended upgrading the HDPM6000 to the latest versions such as V66.

Depending on your hardware revision and preference, choose one of the following configuration options: Option A: Using the "New CT" Wizard added in firmware V66(Easiest for Hardware V2/V3)

Go to Channel Cfg in the web interface. Click the New CT button. Enter the primary current rating as 160 A. For V2/V3 hardware, this option automatically applies the baseline scaling without requiring you to manually calculate CT Factor or PHCAL (Phase Calibration) values.

Option B: Using "Advanced CT Editing" (Manual Entry)

Go to Channel Cfg -> Advanced CT Editing. Create a name (e.g., Hobut 160A). Fill out the fields based on your hardware version: For Hardware v2/v3:Factor: Enter 1.910 (Calculated per Schneider Electric protocol formula:

CT Factor = Primary Rating / 83.75 = 160/83.75 ≈ 1.910.

PHCAL: Enter 0 (Default baseline for third-party CTs when factory phase displacement curve data is not available which is relying on the manufacturer's accuracy claim and not compensating for any phase shift).

Leave the Hardware v1 fields empty. For Hardware v1 (Legacy TrendPoint): Hardware v1 utilizes a legacy internal multiplier.

Best Regards,

-Mehran

L3 Expert Advanced metering

[JamTester]

Hi @Mehran_Mehrnia,

That has resolved the issue I was having.

Thank you so much