The mandatory protections of a photovoltaic system, in a ready-wired assembly: for single-phase Huawei inverters of 2-6 kW with a single string, with a sealable meter box.
The electrical panel is, in short, the fuse box of the photovoltaic installation. It gathers in one place the switches and the protections on the route between the panels and the inverter, where the current is direct, and those on the route between the inverter and the house installation, where the current is alternating. In this way there is a single place from which the system can be switched off and a single place that stops a fault before it spreads further.
This version, with the code 2-6-AC/DC-1str-mono-Huawei, is made for single-phase Huawei SUN2000 inverters of 2-6 kW, with all the panels connected in a single string - the typical situation of a house with a single roof pitch and a uniform orientation. Being a single string, the equipment is simpler, and the solution is the economical one for small, domestic systems. The package includes the sealable box for the distribution operator's meter, made of hard plastic, with special holes for applying the seals, which keeps dust, damp and knocks away from the meter and prevents unauthorised access. The panel is supplied pre-assembled, ready to install, which shortens the execution time and standardises the quality of the wiring.
Purpose: single-phase Huawei SUN2000 inverters of 2-6 kW, a single photovoltaic string, all the modules connected in series on a single MPPT. The protections provided are those required when connecting a prosumer: short-circuit protection, overvoltage protection and appropriate isolation of the installation, with the possibility of disconnection for maintenance work, on the DC and on the AC side. Pre-assembled and wired delivery; the rated values of the protection devices are chosen by the manufacturer according to the power of the inverter and are not published individually.
Suitable for a house with a single-phase connection and a 2-6 kW system with a Huawei inverter, with all the panels on the same roof pitch.
| Product code | 2-6-AC/DC-1str-mono-Huawei |
|---|---|
| Purpose | Invertoare Huawei monofazate 2-6 kW |
| DC configuration | 1 string fotovoltaic |
| Network type | Monofazat |
| Protections included | Protecție AC și DC: scurtcircuit, supratensiune, izolare instalație |
| Meter box | Sigilabilă pentru operatorul de distribuție, cu orificii pentru sigilii |
| Enclosure material | Plastic dur, rezistent la praf, umiditate și șocuri mecanice |
| Delivery form | Preasamblat și cablat |
Generic product — standard specifications
The AC/DC electrical panel with the code 2-6-AC/DC-1str-mono-Huawei is the protection assembly intended for single-phase photovoltaic installations of 2-6 kW equipped with Huawei SUN2000 inverters and with a single string of panels. It groups in a single enclosure the protection equipment on the direct current side, for the photovoltaic string, and that on the alternating current side, up to the connection point.
The protections provided are those required when connecting a prosumer: short-circuit protection, overvoltage protection and appropriate isolation of the installation, together with the possibility of disconnection for maintenance work. The single-string configuration is the economical solution for roofs with a single pitch and uniform orientation, where all the modules are connected in series on a single MPPT.
The package includes the sealable box for the distribution operator's meter, with special holes for applying the seals, made of hard plastic, resistant to dust, damp and mechanical shocks, which prevents unauthorised access to the meter. The panel is supplied pre-assembled, ready to install, which reduces the execution time and standardises the quality of the wiring. The rated values of the protection devices are chosen by the manufacturer according to the power of the inverter and are not published individually.
The module that gives a Huawei inverter internet through a SIM card, where the fixed network does not reach. It plugs into the USB port, serves up to 10 inverters, IP65.
The meter that tells the Huawei inverter how much the building consumes, so that it does not send current into the grid. Three-phase, up to 250 A per phase, through the included current transformers.
The single-phase meter that measures at the connection point what comes in and what goes out, so that the Huawei inverter can limit the injection into the grid. Direct connection up to 100 A, consumption below 1 W.
It shows in real time how much energy enters and leaves the house, so that the installation can regulate itself. Indirect measurement with 3 clamps of 100 A, accuracy ±1%, DIN rail mounting.
