Smart meter Huawei Single-phase 100A SmartPS-100A-S0

Detailed technical characteristics of the Huawei Smartps-100A-S0

Huawei supply the kit Smartps-100A-S0 with one of these four meter models: DDSU666-HOUR, , YDS70-C16, , DDSU1079-CT or DDSU71. The electrical and communication specifications are common to the four, while the dimensions, the weight and the temperature ranges vary slightly according to the model.

General Specifications

• Type of assembly: Lane DIN35
• Dimensions (at x an x PR:) 99 x 36 x 66 mm at 101 x 36 x 66 mm according to model (DDSU666-H: 100 x 36 x 65.5 mm; YDS70-C16: 101 x 36 x 66 mm; DDSU1079-CT and DDSU71: 99 x 36 x 66 mm)
• Weight: of 0.133 kg at 0.2 kg according to model (DDSU666-H: 0.2 kg; YDS70-C16: 0,133 kg; DDSU1079-CT: 0.15 kg; DDSU71: 0.196 kg)
• Screen: LCD

Feed

• Type of network: Single-phase, 1p2w (Phase and Neutral)
• Input voltage (phase voltage:) 230 V
• Own consumption: less than 1.5 W

Rank

• Phase tension: 176 to 288 V CA
• Current: 0.5 to 100 a (DDSU71: 0 to 100 a)

Measurement accuracy

• Precision class: Class I
• Current and voltage: ± 0.5%
• Power and energy: ± 1%
• Frequency: ± 0.01 Hz

Communication

• Interface: RS485
• Protocol: Modbus-RTU
• Transmission speed: 4800/9600 (by default) / 19200/115200 baud

Environmental conditions

• Operating temperature: -25 at +60 ° C (YDS70-C16: -35 to +70 ° C)
• Storage temperature: -35 to +70 ° C (DDSU666-H and DDSU1079-CT) or -40 to +85 ° C (YDS70-C16 and DDSU71)
• Moisture of operation: 5 to 95% HR, without condensation

Kit content

• Smart meter single-phase (one of the four indicated models)
• 1 current transformer (CT) of 100 A / 40 mA
• RS485 cable of 10 m

Benefits of the smart meter Huawei Smartps-100A-S0

In an installation of self-consumption, the inverter you can only make good decisions if you know exactly what happens at the network connection point: how much energy is imported, how much is exported and how much housing is consumed at any time. That is the function of Huawei Smartps-100A-S0, a meter that contributes precise data, in real time and in a standard format to the photovoltaic system.

Class I accuracy

With a maximum error of ± 1% in power and energy and of ± 0.5% in current and tension, the SmartPS-100A-S0 provides reliable readings for surplus management, network injection limitation and savings calculation. An inaccurate measurement can cause unwanted discharges or a poor use of solar energy, something that this meter helps to avoid.

Communication RS485 with Modbus-RTU

The interface RS485 protocol Modbus-RTU it is the most widespread standard in the photovoltaic industry. The meter supports speeds of 4800, 9600, 19200 and 115200 baud, with 9600 baudies as a default value, and the kit includes 10 meters of cable RS485 to connect it directly from the electrical box.

Simple installation in DIN rail

With a width 36 mm and assembly in lane DIN35, the meter is integrated into any domestic electrical panel without the need for additional boxes. The lCD screen allows you to configure your parameters and check the readings at the time of start-up, without additional tools.

Consumption less than 1.5 W

The meter remains active 24 hours, so its own consumption matters. With 1.5 W, its impact on the annual energy balance of housing is practically unpricient.

What is a smart meter for a solar installation for?

The meter is installed in the network connection point, normally just after the company's accountant, and measures the flow of energy in both directions. With that data, the system can:

• Limit the injection to network or configure zero when the installation is not welcomed to surplus compensation.
• Manage battery charge and discharge according to the real consumption of housing.
• Monitor consumption, import and export from the supervisory platform.
• Calculate the percentage of self-consumption and the real savings of the installation.

In systems with inverters hybrid and lithium batteries, the meter is essential so that the battery is unloaded only when the house needs it and is loaded with the solar surpluses instead of pouring them into the network.

Installation with 100 A power transformer

The kit includes a current transformer (CT) of 100 A / 40 mA, which is placed by hugging the dumping phase driver. This allows to measure currents up 100 A without interrupting the main wiring, which simplifies the installation in existing homes. For import and export readings to be correct, the transformer must be installed respecting the meaning of the current indicated in the manual.

Singhafish installations up to 100 a

The Smartps-100A-S0 is designed for 230 v single-phase networks (1p2w). If the installation is three-phase, Huawei has the model Smartps-250A-T0 for networks 3P3W / 3P4W up 250 A. Choosing the correct meter according to the supply type is essential for the system to measure and regulate correctly.

Buy the Huawei SmartPS-100A-S0 in Tienda Solar

On Tenta you will find the necessary components to complete your self-consumption installation, from isolar nversors and solar panels even monitoring meters and accessories. If you want to know how to set up the zero dump or how to size a battery system, in the Blog Tienda Solar our technicians publish step-by-step guides, installation tips and specialized items.

Frequently Asked Questions (FAQ)

1. What meter model will I receive with the SMARTPS-100A-S0 KIT?

Huawei supply the kit with one of these four models: DDSU666-HOUR, , YDS70-C16, , DDSU1079-CT or DDSU71. All share the same benefits of measure (Class I), , 230 v single-phase feeding, , up to 100 A and communication RS485 Modbus-RTU. They only vary slightly the dimensions, weight and temperature range.

2. Can I use it in a three-phase installation?

No. The SmartPS-100A-S0 is exclusively single-phase (1P2W). For supplies three-phase, , Huawei offers the Smartps-250A-T0, compatible with networks 3P3W / 3P4W and currents up 250 A.

3. Is a meter necessary to configure zero poured?

Yes. To limit or cancel the injection to the network, the inverter you need to know in real time the energy that is exported at the connection point. The meter gives you that data by RS485. Is a usual component in facilities with solar kits of self-consumption without surplus compensation.

4. What does the kit include?

Includes the smart meter single-phase, , 1 100 a / 40 mA current transformer and 10 meters of cable RS485.

5. Where is the meter installed?

In the electric, on lane DIN35. The current transformer is placed in the phase conductor of the connection point with the network, so that the meter records both imported energy and exported energy.

6. What precision does it have?

Offers class I accuracy, with an error of ± 0.5% in current and tension, ± 1% in power and energy, and ± 0.01 Hz in frequency.