To understand what is required for the installation of the sensor, please watch the EcoStruxure Transformer Sensor Installation Guide Step by Step video below:

EcoStruxure Transformer Sensor Planning Guide 

Step 1 Notify Substation Design

Liaise with substation design to determine if there are any special requirements on site.

Step 2 Plan a Safe Work Site

Ensure any planned work complies with all relevant site management procedures.

Step 3 Confirm the Point of EcoStruxure Transformer Sensor Insertion

Verify that there is a suitable access port for the installation of the EcoStruxure Transformer Sensor. Any position should be verified with the supervising engineer, who can communicate with Schneider Electric on the suitability of the position, if necessary. Probe position, probe diameter, and clearance should all be taken into consideration.

3.1 Probe Position:

There are advantages and disadvantages to each position shown below, so the choice of the best position for each transformer should be based on its specific physical characteristics.

3.2 Probe Diameter

Ensure the valve will accommodate the 14 mm diameter of the sensor probe.

3.3 Clearance:

Ensure there is 600 mm clearance for insertion of the EcoStruxure Transformer Sensor into the transformer valve pipe.

Once installed there should also be 50mm clearance around the EcoStruxure Transformer Sensor for heat dissipation as well as an additional 60mm in an arc to allow fastening to the transformer valve pipe and for the low voltage power and external temperature sensor cables.

Step 4 Determine Sensor Length

Determine the size and thread type of the insertion point. Schneider Electric provides a standard, 3⁄4” male BSPP/NPT to 1⁄2” female BSPP/NPT connector to interface with the EcoStruxure Transformer Sensor. See the connection drawings below. The connector has two internal O-rings to ensure there is no oil leakage and a bleed valve to prevent the ingress of air into the transformer tank.

Connection Configuration

The figures below show the most common transformer valve configurations.

Additional hardware may be required to interface the insertion point with the 3⁄4” male BSPP/NPT thread of the connector (See number 2 in the figures below).

Flange before valve:

Flange after valve:

No flange:

Length of Pipe

Record the approximate length of the pipe (distance, d, in the figures above) leading to the main tank in the box provided. This information will be used to determine the length of the probe, ensure that the probe will enter the flow but not impinge on the internal windings.

Step 5 Confirm On-site 3G/4G Coverage/Signal Strength

The EcoStruxure Transformer Sensor reports its collected data back to a secure server over the 3G/4G mobile data network. Good 3G/4G signal strength is therefore vital to its successful operation.

Desktop verification of communications should be completed using online Network coverage maps.

 Step 6 Low Voltage Power Supply

The EcoStruxure Transformer Sensor operates at 24 - 48VDC, however, it is provided standard with a 110/240 VAC to 24 VDC, DIN rail mount power adapter.

A suitable power source will need to be identified for the installation of this device. Schneider Electric will provide 10m low voltage cabling, with a pre-installed 5-pin M12 connector, for connection to the logger. Please ensure that the LV cable meets internal standards.

Step 7 Add Drawings (if required)

Please send any additional drawings required for clarification of any of the above responses to support.dts@se.com.

Step 8 Send Email to Schneider Electric

Email this completed document with installation measurements and relevant drawings to Schneider Electric for provisioning purposes to:

support.dts@se.com

Installation

Once planning is completed, visit the EcoStruxure Transformer Sensor Installation Guide for steps on installing the EcoStruxure Transformer Sensor.