Canadian Solar · Growatt
Canadian Solar TOPHiKu6 CS6.2-54TD-530 + Growatt SPF 5000 ES: how many panels per string
From 5 to 9 Canadian Solar TOPHiKu6 CS6.2-54TD-530 panels per string on an MPPT input of the Growatt SPF 5000 ES inverter — in any climatic region of Ukraine. Below: the window for each region, the input currents and example plants laid out by the Solispec engine.
- Panels per string
- 5–9pcs
- Input V_max
- 450V
- MPPT window
- 120–430V
- Panel I_sc
- 16.30A
- MPPT input I_sc
- 22.0A
- Panel V_mp in heat
- 29.5V
Ground frame designer
A ground plant with Canadian Solar TOPHiKu6 CS6.2-54TD-530
The builder opens with this panel and the Growatt SPF 5000 ES inverter: Solispec lays out the strings itself.
- No sign-up
- Snow and wind check
- Drawings and estimate
String by climatic region
T_min per ДСТУ-Н Б В.1.1-27:2010, табл. 1; open-circuit voltage at T_min: K_U = 1 + α·(T_min − 25)/100 = 1.17 (α -0.25 %/K, T_min -42 °C; Annex B).
| Region | T_min | Panel U_oc at T_min, V | Min per string | Max per string | String U_oc at max, V (≤ 450) |
|---|---|---|---|---|---|
| Region I | -40 °C | 47.66 | 5 | 9 | 429.0 |
| Region II | -42 °C | 47.87 | 5 | 9 | 430.8 |
| Region IIIA | -38 °C | 47.46 | 5 | 9 | 427.1 |
| Region IIIB | -32 °C | 46.84 | 5 | 9 | 421.6 |
| Region IV | -20 °C | 45.61 | 5 | 9 | 410.5 |
| Region V | -27 °C | 46.33 | 5 | 9 | 417.0 |
The minimum per string keeps the string voltage in heat (panel V_mp 29.5 V) above the MPPT window (120 V).
Input currents
| Panel I_sc / MPPT input I_sc, A | 16.30 / 22.0 |
|---|---|
| Panel I_mp / MPPT input I_mp, A | 15.34 / 22.0 |
| Parallel strings per MPPT | 1 |
| MPPT inputs | 1 |
No cautions about the currents.
Example plants
The Solispec engine laid out the strings for plants of several sizes with this inverter at the lowest T_min; only those that pass the checks with every panel placed are shown.
| Plant | Panels | kW DC | Inverters | Strings | DC/AC |
|---|---|---|---|---|---|
| ≈ 5 kW | 10 | 5.30 | 2 | 5 pan. × 1 — inv. 1, MPPT 1; 5 pan. × 1 — inv. 2, MPPT 1 | 0.53 |
| ≈ 10 kW | 19 | 10.07 | 3 | 7 pan. × 1 — inv. 1, MPPT 1; 7 pan. × 1 — inv. 2, MPPT 1; 5 pan. × 1 — inv. 3, MPPT 1 | 0.67 |
| ≈ 15 kW | 29 | 15.37 | 4 | 8 pan. × 1 — inv. 1, MPPT 1; 8 pan. × 1 — inv. 2, MPPT 1; 8 pan. × 1 — inv. 3, MPPT 1; 5 pan. × 1 — inv. 4, MPPT 1 | 0.77 |
- DC/AC 0.53 — inverter oversized
A preliminary calculation; a design needs an engineer's check. Solispec engine 0.12.0.