Huawei SUN2000-20KTL User Manual (English)

Other manuals for Huawei SUN2000-20KTL

Questions and Answers:

K
kevincollinsSep 5, 2025
How to fix DC Over Voltage on Huawei Inverter?
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  michaelvasquezSep 5, 2025
  If your Huawei Inverter displays a 'DC Over Voltage' error, it means the open circuit voltage of the PV arrays is greater than the maximum input voltage of the SUN2000. This is often because too many PV modules are connected in series, leading to excessively high output voltage. To resolve this, check the number of PV modules connected in series and adjust to decrease the output voltage to meet the voltage requirements for the SUN2000.
A
Alyssa AbbottAug 25, 2025
What does Frequency Abnormal mean on a Huawei SUN2000-20KTL Inverter?
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  Natalie BrownAug 25, 2025
  The Huawei Inverter displays a Frequency Abnormal error when the grid's actual frequency is higher or lower than the required value for the local grid. If this alarm occurs accidentally, it's possible there's an issue with the grid. The inverter will automatically revert to normal once the problem is resolved.
M
Mark MorseAug 25, 2025
How to troubleshoot Low Array Insulation Resistance on Huawei SUN2000-20KTL?
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  Mark MillerAug 26, 2025
  The Huawei Inverter shows a Low Array Insulation Resistance error when the insulation resistance against ground of the PV strings is low, possibly due to a short circuit between PV strings and the ground. Check the insulation resistance against the ground of the PV strings and rectify any short circuit.
R
Ronald StaffordAug 26, 2025
What does String 1-6 Reverse mean on Huawei Inverter?
- J
  Jeremy LongAug 27, 2025
  The Huawei Inverter shows 'String 1-6 Reverse' when the cables between PV strings were connected in reverse during installation. Check if the cables between PV strings are correctly connected and reconnect them if necessary.
K
Katherine CrawfordAug 27, 2025
Why is my Huawei Inverter showing a Grid Voltage Abnormal error?
- S
  Shane LynnAug 27, 2025
  The grid voltage may be beyond the allowed range. This can happen if the grid A, B, or C phase voltage is less than the allowed range (Reason ID = 1 to 6), or if there's a power outage, a disconnected AC line, or a tripped AC circuit breaker (Reason ID = 29). If it's an accidental grid issue, the Huawei Inverter should automatically return to normal once the problem is resolved. Check if the AC voltage is normal.
J
Jared ShawAug 28, 2025
What to do if Huawei SUN2000-20KTL shows Invert Module Fault?
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  bobby90Aug 28, 2025
  The Huawei Inverter indicates an Invert Module Fault when abnormal external conditions trigger converter circuit protection inside the inverter. This could be due to a sharp drop in grid voltage or a short circuit, causing high output current (Reason ID = 4), or the inverter's output short-circuiting (Reason ID = 20). The inverter monitors external conditions and should return to normal once the issue is resolved. Check for any short circuits in the inverter's output cables and fix them.
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Maria RossSep 9, 2025
What causes Invert Module Fault in Huawei SUN2000-20KTL?
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  Lori RodriguezSep 9, 2025
  If your Huawei Inverter displays 'Invert Module Fault', it indicates a protection activation for the inversion circuit inside the SUN2000 due to abnormal external conditions. The SUN2000 detects its external working conditions in real time, and therefore the SUN2000 automatically recovers to the normal operating status after the fault is rectified. If the Reason ID is 20, check whether the inverter output cable is short-circuit.
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Jesse BrennanSep 6, 2025
What to do if Huawei SUN2000-20KTL shows Grid Voltage Abnormal?
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  Robert BellSep 6, 2025
  If your Huawei Inverter shows a 'Grid Voltage Abnormal' error, it indicates that the voltage of the power grid is beyond the acceptable range. If this occurs accidentally, the SUN2000 will automatically recover to normal operation once the grid stabilizes. However, if the alarm repeats, verify that the grid voltage is within the acceptable range. If it is not, contact your local power operator. If the voltage is within range, you may need to change the power grid overvoltage and undervoltage protection points after getting approval from the local power operator.
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michaelwebbSep 4, 2025
What to do if Huawei SUN2000-20KTL Firmware Upgrade Failed?
- S
  Sandra DiazSep 4, 2025
  A Firmware Upgrade Failed error on a Huawei Inverter means the upgrade process was incomplete. Upgrade again.
K
Katie BarrettSep 1, 2025
What to check for Electrical Grounding Fault on Huawei SUN2000-20KTL Inverter?
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  amanda59Sep 2, 2025
  An Electrical Grounding Fault on the Huawei Inverter indicates that the neutral wire or PGND cable is not properly connected to the inverter. Ensure that the neutral wire and PGND cable are correctly connected.

Huawei SUN2000-20KTL Specifications

General

Max. efficiency	98.6%
Rated AC output power	20, 000 W
Max. apparent power	22, 000 VA
No. of MPP trackers	2
Max. input voltage	1100 V
Protection degree	IP65
Max. DC Power	30, 000 W
Start Voltage	200 V
Nominal DC Voltage	600 V
Max. Input Current per MPPT	26 A
Nominal AC Grid Frequency	50 Hz / 60 Hz
Adjustable Power Factor Range	0.8 leading to 0.8 lagging
Total Harmonic Distortion (THD)	<3%
DC Reverse-Polarity Protection	Yes
AC Overcurrent Protection	Yes
AC Short-Circuit Protection	Yes
DC Insulation Resistance Detection	Yes
Residual Current Monitoring	Yes
AC Overvoltage Protection	Yes
DC Switch	Yes
Cooling Method	Natural Convection
AC output voltage	220 V / 380 V, 230 V / 400 V
MPPT operating voltage range	200 V - 1000 V
Operating temperature range	-25°C to +60°C
Relative Humidity	0% - 100%
Operating Altitude	Up to 4000 m
Surge Protection	Type II DC & AC