TRIPHAS'O

triphaso


Presentation

The Triphas’O sensor is used to remotely read the electrical energy consumption of a three-phase or mono-phase installation in a non-intrusive way via the LoRaWAN™ network. It is specially designed to meet the energy management needs of industrial and tertiary buildings that operate with medium / high power, energy intensive equipment.

The consumption of the Triphaso is around 1W (2W maximum).

Family code

  • 50-70-105: 0-60A
  • 50-70-145: 0-400A
  • 50-70-146: compatible with Rogowski Loops

Release note:

  • v3.5.2.6041:
    • Compatible with Triphaso Tool ( available here )
    • New cluster 0x8010 which manages all energies of all phases in the same frame and all power of all phases in the same frame. All values are signed.
    • New cluster 0x800D which manages all voltage, current and angle of all phases in the same frame.
    • Number of element configured by Batch goes from 8 to 5. 

LoRaWAN release

v1.0.2 Region Parameter rev B

User guide

Installation Guide

Installation and operation


Installation

This excell sheet can help to install the Triphas'o : Installation Tool

 

Function Number of points Marking Pitch(mm) Unplugggable
Binary input 2 3.5

No

On/Off output 2 3.5

No

Voltage input 4 L1,L2,L3,N 7.0

No

Current input 4 3N,2N,1N 3.5

Yes

Binary input

Input controlled:

  • by a dry contact: pinching at the input ground, 10kΩ maximum contact resistance at ground.
  • by 0 < VIL< 0.5VDC to deactivate the input and 2.5VDC< VIH< 30VDC to activate the input (10kΩ of serial protection beyond 5VDC).

The terminal marked on the housing corresponds to the ground on the board. Overvoltage protection.

Input connection to a dry contact:

The dry contact must take into account the low polarization current of the input. The use of a silver-or gold-plated contact is recommended to ensure the state is properly detected.

Input connection to a square signal:

Example using a polarized connector:

On/Off output

Electromechanical relay, 10kV insulation between the coil and the contacts.
Breaking capacity of 1A @ 230VRMS under purely resistive load.
Minimum current: 10mA @ 5VDC
Make contact, normally open.
Potential free, dry contact.
This output must be protected from overcurrents by an external device with a rating suited to the output capacity.
Function: status report (fault, deletion...)

Voltage Inputs

Each voltage input is equipped with a stage that allows the voltage to be reduced to a level compatible with the internal sensor input stage.

Each voltage inputs have to be protected by a 1A gG external fuse.

Maximum voltage: 450VRMS
Measurement accuracy: 1%

Current inputs

general

There are 3 current inputs.
In the case of a 4-wire installation, the 3 inputs are used.
In the case of a 3-wire installation, the current in phase 2 is obtained by difference from the other 2. Only measurement points 1 and 3 are used.

It is advice to connect the transformer on the triphaso before mouting transformer on the grid.

polarity

In order to correctly measure the angle between voltage and current, the polarity must be observed when connecting current transformers. The 2 wires of the secondary circuit must be connected so as to be in the same direction as the primary current. In the event of an error, the phase measurement will be shifted by 180°.The arrow indicates the direction of polarity to be observed, as per that on the primary of the current transformer.

The best way to connect it is to connect the 'N' ring on the 'N' connector.

0-60A range

Primary current transformation by a current transformer with a 1:3000 ratio @ 50 Hz (supplied)

Measurement accuracy: 3% of full scale (with a Class 2 current transformer)

0-400A range

Primary current transformation by a current transformer with a 1:5000 ratio @ 50Hz (supplied)

Measurement accuracy: 2% of full scale (with a Class 1 current transformer)

 

0-4000 A range

Transformation of the primary current by a Rogowski coil with a ratio of 22.5 mV/kA @ 50 Hz (not supplied)

Measurement accuracy: 1.5% of full scale (with a Class 0.5 Rogowski coil)

Electrical installation

Each voltage inputs have to be protected by a 1A gG external fuse.

Triphas'o can answer to several type of electrical network:

Mono-phase

On Mono-phase, it is possible to connect 1 to 3 current transformers on the same phase. If there is more than 1 current transformer then it is necessary to link L1, L2 and L3 to have a measurement of voltage, angle and power of all inputs.

On Mono-phase, the Voltage inputs must be connected as following:

Phase Triphas'O Terminal Block
Phase L1
Phase L2 [if more than 1 current transformer]
Phase L3 [if more than 1 current transformer]
Neutral N

On this installation, it is necessary to set the Triphas'o in 4-wire configuration (Star).

 

Three-phase

On this, there is several possibilities 4-wires and 3-wires.

The order of the phases is determined by looking at when each goes to 0. There is direct order and reverse order.

  • Direct order: the voltages appear in the order L1, L2 and L3.
  • Inverse order: the voltages appear in the order L1, L3 and L2.

In the following, the order of phases is considered as direct.

The typical representation diagram of voltage and current vectors is:

The following description will be based on this previous schema.

 

4-wires (3P +N)

The 4 wires can be installed on this typical use case:

On Three-phase - 4 wires, the Voltage inputs must be connected as following:

Electricity grid
Triphas'O Terminal Block
Phase L1 L1
Phase L2 L2
Phase L3 L3
Neutral N

If "error" red led is ON, then inversed L2, L3 on the Triphas'O terminal block.

On this installation, it is necessary to set the Triphas'o in 4-wire configuration (Star).

On this, the return values by Triphas'o of voltage, intensity and angle is :

EndPoint Voltage Current Angle
0 V1 I1 (I1,V1)
1 V2 I2 (I2,V2)
2 V3 I3 (I3,V3)

Measurement in balanced 3-phase 4-wire (3 phases + neutral) system:

The currents flowing in the three phases are equal in RMS values I1 = I2 = I3 and have the same phase shift ϕ with respect to the respective voltages of the 3 phases.

So with V1 as the single-phase voltage measured between phase L1 and neutral, the power P1 supplied by phase L1 will be obtained by connecting only one wattmeter on the phase L1. The value will be: P1 = V1 x I1 x cos ϕ and total power P = 3 x P1.

Measurement in unbalanced 3-phase 4-wire (3 phases + neutral) system:

In this case, it is necessary to use 3 wattmeters and the measurement of each power need to be added.

P = P1 + P2 + P3

3-wires (3P)

The 3 wires can be installed on this typical use case:

It is not possible to connect Triphaso on 3 wires mode, if there is load behind connected on 3 wires + neutral or on mono-phase. If the Load is not balanced then there is possibility to have current on the neutral which will be not measured by the Triphaso.

On Three-phase - 3 wires, the Voltage inputs must be connected as following:

Electricity grid
Triphas'O Terminal Block
Phase L1 L1
Phase L2 N - L2 [Optional]
Phase L3 L3

If "error" red led is ON, then inversed L2, L3 on the Triphas'O terminal block.

On this installation, it is necessary to set the Triphas'o in 3-wire configuration (Delta). The measurement is done with the method of 2 wattmeters. In this method, only 2 input currents are necessary and has to be installed on Phase 1 and Phase 3. Due to this method, if load is not balanced, only the active power measurement is valid.

On this, the return values by Triphas'o of voltage, intensity and angle is :

EndPoint Voltage Current Angle
0 U12 I1 (I1,U12)
1 U13 I2 (I2,U13)
2 U32 I3 (I3,U32)

The fresnel graph is the following:

So, it is possible to have the angle (In,Vn) by calculation:

(I1,V1) = (I1,U12) - 30°
(I2,V2) = (I2,U13) - 90°
(I3,V3) = (I3,U32) + 30°

On this method, it is necessary to add the power or energy of the Phase 1 and Phase 3 to have the total power or energy. It is possible to have a negative power and energy on Phase 1 if the (I1,V1) is > 60°; or on Phase 3 if  (I3,V3) < -60°. So to have the total powers and energies, it is necessary to add the Positive and Negative powers and energies.

Ptotalpositive = P1positive + P3positive

Ptotalnegative = P1negative + P3negative

Ptotal = |Ptotalpositive| - |Ptotalnegative|

Radio propagation

A female SMA connector is mounted on the front panel to allow the connection of an antenna or an
extension for a remote antenna.

 

Human Machine Interface


The Human Machine Interface has 5 leds and 2 buttons:

Radio Network

To start up the device, the radio button has to be pushed on the sensor for one second. After one second, the radio Led blinks slowly until the association is done. Since release v3.5.2.5530, after 6 hours in assosation searching the led blinks all 1 minute.

association

To switch off the device, repeat the same operation by pressing the radio button for 5 seconds. After those 5 seconds, the radio Led blinks 5 times slowly.

  • A reassociation procedure can be requested if no downlink frame is received by the sensor during a given periodicity (4 days by default) or if a given number (100 by default) is reached or in case of failure (no acknowledgement received) by sending an applicative frame to the sensor or via the sensor’s IHM.

The sensor keeps the AppEUi and DevAddr configured, Confirmed/Unconfirmed configuration and all applicative configurations. However, LoRaWAN configurations (channel, data rate …) are lost.

Feature is available by pushing 3 quick times on the radio button.

  • A factory reset is available on Watteco’s sensors. It deletes all the applicative settings saved in the flash memory (i.e. configured batches and reports will be deleted).

The sensor keeps the AppEUi and DevAddr configured. However, LoRaWAN configurations (channel, data rate…) and applicative configurations are lost.

Feature is available by pushing two quick times and a long time on the radio button.

5

Electrical Configuration

These keys and leds are used to configure the sensor in the appropriate type of installation.

  • “4-wire” type installation, or
  • “3-wire” type installation, or
  • single-phase installation.

With each press on Configuration Electric Button, the sensor switches between the three modes. To tell the installer which mode the sensor is in, the latter will switch on:

  • the "4-wire configuration" LED only (4-wire mode), or
  • the "3-wire configuration" LED only (3-wire mode), or
  • these 2 LEDs simultaneously (single-phase mode)

Applicative layer


Codecs are available to decode frames: Downloads

Encoder are available on Online Codec

Triphas'o incorporates the following clusters:

clustercluster namemanaged attributes
0x0000BasicAll
0x0050ConfigurationAll
0x0006ON/OFFAll
0x000FBinary InputAll
0x8004LoRaWANAll
0x800AEnergy and power metering All
0x800BVoltage an current metering All
0x8010 [available from v3.5.2.6041]Multi Energy and power meteringAll
0x800D [available from v3.5.2.6041]Multi Voltage an current metering All

Triphas'o measures each second positive, negative active and reactive power, Vrms, Irms et Phase angle between voltage and current.

It is possible to modify the periodicity of integration of powers and so the resulted power is the mean on this periodicity.

The un