Sungrow Channel Product & Solution Introduction

Contents

• C&I Products Introduction
• Comparison with Other Brand
• Optimizer & RSD Solution Highlights

SGCX-P2 Series Product

SG 33-40-50/125 CX-P2

Image: A sleek, rectangular Sungrow inverter unit with a light blue accent.

Specifications:

• Max. PV input voltage: 1100V
• No. of independent MPP inputs: 3/4/4/12
• Max. PV input current: 90/120/120/360 A
• Max. AC output apparent power: 36.3/44/55/125 kVA
• Water and dust resistance: IP66
• Corrosion resistance: C5
• Operating ambient temperature range: -30 to 60 °C

Features:

• Surge protection: DC Type I+II / AC Type II
• PV String current monitoring
• Arc fault circuit interrupter (AFCI)
• PID recovery function
• Global MPP Tracking
• 10s live data refresh
• String level IV Curve Scanning
• Patent Structural Design

Communication Devices

Image: A white rectangular communication device (Winet-S) and a smaller, black remote control device (COM100E).

PID Recovery Reduces Modules From Performance Degradation

The system boosts PV-to-ground voltage to recover modules degradation, ensuring optimal performance.

Visual Description: Two PV modules are shown. The left module, labeled "Before recovery", displays degraded cells. An arrow points to the right module, labeled "After recovery", showing all cells functional. Text states: "Experiments verify that Boosting PV-to-ground voltage can repair module damage caused by PID" with an upward arrow indicating "8.8%".

Global MPPT Tracking Increase Generation by 2%

MPPTs identify the global MPP and maximize PV plant yield, especially under shading. Full-curve scanning enables precise tracking of the maximum power point (P4).

Visual Description: Two diagrams compare "Sungrow Global MPPT" and "Traditional Scheme". The Sungrow diagram shows a smooth power curve with P4 as the global maximum. The Traditional Scheme diagram shows a power curve with multiple peaks, indicating potential misidentification of the global maximum (P1).

AFCI Protection Performance

Outperforms UL1699B requirements, reducing electrical accidents from DC arc faults and enhancing safety.

Performance Comparison (Sungrow AFCI vs. IEC 63027-2023):

• Shutdown time: Sungrow AFCI < 0.2s - 1.5s; IEC < 2.5s
• Cable length: Sungrow AFCI 200m; IEC 80m
• MPPT current: Sungrow AFCI 32A; IEC 16A

String-level Locating

Helps to position the string where an arc fault occurs.

Visual Description: A diagram shows PV panels connected to an inverter. An arc fault is indicated in one string, with a system component identifying the faulty string.

SPD Protection

Industry's First DC I/II Lightning Protection Inverter, offering effective protection against direct and indirect lightning strikes.

Image: A Sungrow inverter unit.

Patent Structural Design, Saving Operation Time

Dedicated installation methods reduce installation time by up to 30%.

Image: A Sungrow inverter with its side panels open, revealing internal components and connectors.

Side handles

4 detachable side handles for easy lifting and handling.

New AC cabinet

Connectors are easily accessible and positioned at a convenient height.

Door stopper

Practical door stop to keep the AC compartment open during installation or maintenance.

AC sealing plate

Adaptive sealing plate adjusts to cable diameter.

Smart String IV Curve Scanning

Sungrow's intelligent IV curve analysis technology has dual certification from TÜV and CGC, achieving the industry's highest Level 4 rating.

Performance Metrics:

• Reaction Time: < 1s (Single String)
• Types of faults: >17 (analyzation)
• Scanning Accuracy: ≥ 90%
• Precise Judgment Accuracy: ≥ 95%

Wider MPP Voltage Range, Longer Serving Time

Start-up input voltage 200V / MPP voltage range 160-1000V.

SG25-50CX-P2 power range

Visual Description: A voltage range slider shows Sungrow's range from 160V to 1000V with a "40V startup voltage margin". "Other Brand" range is shown from 200V to 1000V.

SG125CX-P2 power range

Visual Description: A voltage range slider shows Sungrow's range from 180V to 1000V with a "20V startup voltage margin". "Other Brand" range is shown from 200V to 1000V.

Start Earlier And Stop Later

Visual Description: A graph shows power output (kW) over time. The "CX-P2" line starts producing power earlier and stops later than the "Other Brand" line, indicating a longer serving time.

Power-DC Input Voltage Curve Comparison

SG125CX-P2

Visual Description: A graph shows output power (Sout kVA) vs. MPP voltage (V mpp V). The curve shows full output from approximately 350V to 850V.

xx-100kW

Visual Description: A graph shows output power (Pout/Pn) vs. DC Input Voltage (V). The curve shows full output from 540V to 800V.

400V grid voltage, SG125CX-P2 offers a wider voltage range for full-load output, enabling flexible design and better control of voltage drop rate.

Temperature De-rating Curve Comparison

SG125CX-P2 @ 600V

Visual Description: A graph shows P/Pn ratio vs. Ambient Temperature (°C) for different Vmpp values. Derating starts above 45°C.

100kW inverter @ 600V

Visual Description: A graph shows Output Power (kW) vs. Ambient Temperature (°C). Derating starts above 30°C.

Sungrow SG125CX-P2 (with 600V DC input) starts derating output at ambient temperatures above 45°C, while other 100kW inverters derate above 30°C.

AFCI Function Field Test Result

Test Procedure

DEVICE SETTING.

1. Turn off the inverter.
2. Connect the arc simulator in series with the PV string and the inverter.

CONNECTION.

3. Connect the current and voltage sensors of oscilloscope to one of DC string and arc simulator.

OPERATION.

4. Turn on the inverter again and wait for inverter connect to grid and run normally.

SIMULATING TEST.

5. Send command to arc simulator via laptop to simulate the arc fault follow the standard.

MONITORING & CONTROL.

6. Check and confirm inverter has been stop and display AFCI alarm.
7. Check and record tripping time and waveform.

Visual Description: A diagram illustrates the test setup with PV panels (Strings), an inverter, an arc simulator, an oscilloscope with sensors, a laptop controller, and an AFCI test kit.

The kit, following IEC63027 and UL1699B standards, eliminates the influence of human factors and limits factors to DC cable length and current.

Site test: SG125CX-P2

Visual Description: A mobile phone screen displays "FAULT ALARM RECORD (11)" with entries like "String 1 Arc Fault". Below this, an image shows a solar installation site with inverters and panels, and a table of test results.

PV Layout Description: A diagram shows a PV layout with labels for string numbers, inverter numbers, and DC terminals. Some labels are in Vietnamese: "NAME OF STRING: DSR1-INVYY-ZZ", "ZZ: THỨ TỰ STRINGS DC/DC TERMINALS NUMBER STRINGS", "YY: THỨ TỰ INVERTER/INVERTER STATION NUMBER", "DSR1: SỐ HIỆU DSR1-DSR1 NUMBER", "GHI CHÚ NOTE:", "BỐ TRÍ CHUỖI PV INVERTER 01,ANVERTER 01 PV LAYOUT", "ĐƠN VỊ BẢN VỀ: MILIMET(MM)/ DRAWING UNITS: MILIMETERS (MM)", "TỈ LỆ SCALE: 1/1000".

Other Performance Comparison

System Rapid Shutdown Solutions

Sungrow offers rapid shutdown solutions.

Visual Description: A diagram shows an inverter (SG33/40/50/125CX-P2) connected to two options: Option 1: "1 in 1 optimizer (Ready)"; Option 2: "2 in 1-RSD (Coming in this June)".

Note: "Optimizer also has the Rapid Shutdown Function".

One-brand & High-integrated System

Sungrow provides a one-brand system with monitoring support, a highly integrated system for easy design and commissioning, patented FHC bypass & Active safety (AFCI + Rapid Shutdown), and a PLC distance of ≤350 m.

Visual Description: A system diagram illustrates the integration of PV panels, AFCI, RSD, inverters (SG50/125CX-P2), communication devices (COM100E), an emergency button, a smart meter, and connection to the Grid. It shows communication lines (RS485, AC, Wi-Fi, DC) and mentions "iSolarCloud" for maintenance.

Tool Free Installation Save 45% Installation Time

Sungrow Solution

Only takes 35s to finish installation.

Visual Description: Images show "Border clamp 5s" and "Cable connection 30s".

Other Brand Solution

Installation time > 1min.

Visual Description: An image of a patented design component with a QR code. Another image shows a TUV Rheinland verification certificate.

Note: "TUV Rheinland verified the reliability of the quick-plug."

Saving Installation Time & Resource

Traditional Installation

Visual Description: Image shows mounting an optimizer with a rail.

Sungrow Installation

Visual Description: Image shows mounting an optimizer with a PV panel frame.

Support optimizer pre-mounting with PV panel on ground, reduce and operation on rooftop.

Saving 4 Times Maintenance Resource

Traditional maintenance

Visual Description: Image shows 4 people removing a PV panel to replace a faulty optimizer.

Quick plug installation and maintenance

Visual Description: Image shows 1 person directly replacing a faulty optimizer using a quick plug.

Comparison: "4 person, remove panel first then replace faulty optimizer" VS "1 person, replace faulty optimizer directly".

Patented Active Bypass / Smart and Reliable

The control switch is normally on, drawing power from 2 PV modules and outputting to other series SR20D-M.

Bypass Mode

In case of communication issue, module fault, or RSD fault, the RSD enters bypass mode without affecting other modules in the string.

Comparison with 3rd RSD

Sungrow's self-developed chip inside SR20D-M controls temperature 60°C to 70°C lower than 3rd RSD.

Visual Description: A bar chart compares temperature upper limitations of components: Sungrow shows 150°C (self-developed chip) vs. 180°C-190°C (normal diode design / 3rd RSD).

Features of Patented FHC active bypass:

Smart

• Actively status detection
• Active shading identification
• Active on-demand bypass

Reliable

• Lower heat
• Lower power consumption
• More reliable, longer lifetime

Note: If 3rd RSD works in bypass mode, the temperature will exceed the upper limit of component temperature, leading to a high fault rate.

AFCI+RSD / Dual Protection & Active safety

Combining AFCI with RSD ensures active safety. The inverter actively detects an arc and shuts down, while RSD quickly shuts down the system, allowing timely fault detection.

Visual Description: A diagram shows "String-level Positioning" to help locate strings with arc faults.

Performance Metrics:

AFCI

• Shutdown time: 0.2s - 1.5s (Sungrow AFCI) vs. < 2.5s (IEC 63027-2023)
• Cable length: 200m (Sungrow AFCI) vs. 80m (IEC 63027-2023)
• MPPT current: 32A (Sungrow AFCI) vs. 16A (IEC 63027-2023)

RSD

• Shutdown time: < 20s (Sungrow AFCI+RSD) vs. < 30s (NEC)
• Safe voltage: 1V (Sungrow AFCI+RSD) vs. High Voltage (NEC)

Note: "Shutdown within 20 s, much shorter than required by NEC standard."

About our Monitoring Platform

iSolarCloud supports PV panels virtual layout 100% matching with installation layout, using different colors to indicate operation states and supporting faulty panel location. It provides comprehensive monitoring of unit status like output power/voltage/current.

Visual Description: Screenshots of the iSolarCloud interface showing a plant overview, physical layout, device list, and detailed device information for an optimizer (S/N: A22B0205121), including input/output voltage, current, and power.

String-level IV Diagnosis

For RSD

Metrics: Reaction Time < 1s (Single String), Types of faults >17 (analyzation).

Module-level IV Diagnosis

For Optimizer

Metrics: Scanning Accuracy ≥ 90%, Precise Judgment Accuracy ≥ 95%.

Note: "Enable IV Curve scan when the sky is sunny without cloud." and "The monitoring system needs to be equipped with Sungrow logger and iSolarCloud."

Certifications: TÜVRheinland and China General Certification logos are shown.

THANKS