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    Intelligente, PV-betriebene Bewässerungssteuerungslösung

    SWP4KH-V1

    Produkteinführung

    JNTech SWP4KH-V1 is a high-efficiency MPPT solar pump inverter designed for 3-phase pumping in medium-head irrigation and water-supply projects. It accepts wide DC PV input (high-voltage PV strings) and AC grid backup, provides built-in MPPT (>99% peak efficiency), full pump protections (dry-run, overcurrent, phase loss, etc.), and easy unattended operation for remote sites.

    Produkteigenschaften

    • Industry-leading MPPT & high PV utilization — fast MPPT algorithm with typical MPPT efficiency >99.6%, extracting maximum power from PV even under variable irradiance.

    • Dual DC/AC input + grid/DG compatibility — supports DC (PV) and AC (grid/DG) inputs for hybrid operation and uninterrupted pumping.

    • Comprehensive pump protection & intelligent controls — dry-run detection, minimum power input, motor overcurrent protection, low-speed stop, water-tank full/overflow detection, lightning and EMC protections to secure long service life.

    • Easy field operation & system integration — LED/keypad display, RS485 (Modbus) remote monitoring, flow/energy estimation (PQ curve), and compact rugged design for site installations.

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    Technische Spezifikationen

    SWP4KH-V1
    • Modell  SWP4KH-V1
      Rated power (AC output) 4.0 kW
      Recommended MPPT voltage (Vmp) 485–750 Vdc (recommended MPPT window for 380/400V class).
      Max. input DC voltage (Voc) ≤ 800 Vdc (system dependent).
      Output voltage (3-phase) 380–460 Vac (3-phase).
      Output frequency 0 – 50/60 Hz (0–600 Hz capability).
      Rated output current ≈ 9 A.
      MPPT efficiency > 99% (typ. 99.6%).
      Betriebstemperatur −25 °C to +50 °C (derating above +50 °C).
      Kühlung Forced-air cooling.
      Kommunikation RS485 (Modbus).
      Höhe Rated to 1000 m (derate above).
      Anzeige LED / keypad; monitoring parameters available.
      Einhaltung EN50178; IEC/EN62109-1; IEC61800 (design basis).

    Beschreibung

    Product description

    The SWP4KH-V1 is a purpose-built solar pumping drive that converts DC from PV arrays (or AC from grid/DG) into three-phase AC to drive centrifugal and PMSM pumps. Its MPPT engine dynamically adjusts operating point to maximize PV energy harvest; when PV energy is insufficient, the unit can accept AC input or operate in hybrid mode (PV priority). Built-in pump-centric features (dry-run, low-power stop, motor current limits) protect mechanical assets and minimize unscheduled maintenance. The inverter also reports energy and estimated flow via the PQ curve to assist system monitoring and performance verification.

    Industry note: MPPT-based solar pump inverters are widely used because they recover far more energy from PV arrays than fixed-voltage schemes — typical MPPT efficiencies for modern solar pump inverters exceed 99% in practice.

    Typical application scenarios

    • Agricultural irrigation (drip & sprinkler): distributed farms, orchards, plantation blocks.
    • Village water supply & community schemes: remote drinking water supply and village microgrids.
    • High-head pumping projects: multi-stage pump fields and mountainous water delivery (paired with proper pump selection and NPSH management).
    • Pond/pond aeration, livestock watering, and industrial water transfer where grid reliability is poor and PV-driven solutions reduce operating cost.

    Quick commissioning & sizing guidance (high level)

    Motor tuning: PMSM pumps require auto-tuning for optimum performance — perform motor auto-tune according to section in manual.

    PV array sizing: recommended PV total power ≈ 1.3–1.5× pump rated power (depends on panel quality & site irradiance). See solar arrays selection table in manual for string counts and Voc/Vmp guidance.

    PV connection: DC strings may be connected to R/T (or P+/P− with polarity attention) per manual. For long cable runs, consider dv/dt reactors / output reactors to protect motor insulation.

    Q1: What PV voltage range does SWP4KH-V1 require?

    A: Recommended MPPT window is ~485–750 Vdc with max Voc up to ~800 Vdc (follow manual and site Voc checks before commissioning).

    Q2: Can the inverter run both on solar DC and grid AC?

    A: Yes — it supports dual input modes (PV DC and AC grid/DG), enabling hybrid operation with PV priority.

    Q3: Does SWP4KH-V1 protect against dry-run and low water?

    A: Yes — built-in dry-run protection, water-level (float/analog) inputs, low-input power protection and auto stop/restart logic.

    Q5: How should I size PV panels for a 4 kW pump system?

    A: Rule-of-thumb: PV array power = 1.3–1.5 × pump rated power; exact string count depends on panel Vmp and site Voc — consult the inverter’s PV selection table in the manual.

    Q6: What protections are included?

    A: Overvoltage/undervoltage, overcurrent/short-circuit, output phase loss, dry-run, lightning protection, and motor protection options.

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    Stichworte:

    Solar-Bewässerungssteuerung Solar-Pumpensteuerung Solarpumpen-Wechselrichter solar pumping system

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    Intelligente, PV-betriebene Bewässerungssteuerungslösung

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