Midea Group
NEPCSO-6900UD-MV
NEPCSO-6900UD-MV
  • High Power Density & Integrated Design

    6900 kVA rated power at 45°C, supporting stable power output under high ambient temperatures.

    Integrated PCS and dual-split MV transformer design for streamlined system configuration.

  • Flexible System Adaptability

    Wide 1000–1500 V DC operating range for compatibility with different battery configurations.

    Configurable 10–33 kV MV output for diverse grid connection requirements.

  • On-grid & Off-grid Operation

    Supports both grid-connected and off-grid operating modes.

    100% unbalanced load capability for operation under varying load conditions.

  • Efficient Operation & IEC Integration

    Up to 99% PCS efficiency with an operating temperature range of –35°C to +55°C.

    Supports IEC 104 and IEC 61850 communication for integration with plant-level control systems.

NEPCSO-6900UD-MV.PDF
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  • DC-side Parameters

    Max. DC Voltage

    1500 V

    Min. DC Current

    1825 A × 4

    DC Voltage Range

    1000-1500V

    Number of DC Inputs
    4
  • AC-side (On-grid) Parameter

    Nominal Power

    6900 kVA @ 45°C, 7590 kVA @ 30°C

    PCS Nominal AC Voltage

    690 V (3P + PE)

    PCS AC Voltage Range

    587–759 V (adjustable)

    PCS Max. AC Current

    1588 A × 4 @ 30°C

    1443 A × 4 @ 45°C

    Nominal Grid Frequency

    50 Hz/60 Hz

    Current THD (THDi)

    < 3% (at rated power)

    Power Factor

    > 0.99 (at rated power)

  • AC-side (Off-grid) Parameter

    PCS Nominal AC Voltage

    690 V (3P + PE)

    PCS AC Voltage Range

    587–759 V (adjustable)

    AC Voltage Distortion

    < 3% (linear load)

    DC Voltage Component

    < 0.5% Un (linear balance load)

    Unbalanced Load Capacity

    100% unbalanced load

    Nominal Grid Frequency

    50 Hz/60 Hz

  • Transformer Parameter

    Isolation Mode

    Oil-immersed transformer (dual-split)

    Rated Power

    7100 kVA @ 45°C

    LV/MV Voltage

    LV: 0.69 kV

    MV: 33 kV (10-33kV, optional)

    Vector Group

    Dy11y11

    Cooling Type

    ONAN, KNAN (optional)

    Oil Type

    Mineral oil (no PCB), degradable oil (optional)


  • General Data

    PCS Max. Efficiency

    99%

    Ingress Protection (IP) Rating

    IP54

    Operating Ambient Temperature Range

    –35°C to +55°C (> 45°C derating)

    Relative Humidity Range

    0–100% RH (non-condensing)

    Max. Operating Altitude

    1000m, 2000m (optional)

    Cooling Method

    Forced air cooling

    Dimensions (W × D × H )

    12192 mm × 2438 mm × 2896 mm

    Weight (approx.)

    ≤ 34 t
    Communication Manner

    RS485, CAN, Ethernet, optical fiber

    Communication Protocol

    Modbus TCP, IEC 104, IEC 61850

    Standard Compliance

    EN 50549, IEC 62477, IEC 61000, IEC 62271-202





    ©2026 Shenzhen CLOU Electronics Co., Ltd.

    All rights reserved. Subject to change without notice. Version 1.0 07/2026