On grid string inverter HC50KTLSI intelligent control
Hua Cheng's grid string inverter intelligent control is a high-efficiency photovoltaic string inverter with built-in LED and other modules that can be used for monitoring. Its intelligent control function and APP monitoring function allow users to directly obtain the battery and other equipment through the mobile phone. The main features of this power inverter module are:
High Availability & Usability
● Integrate with functions of confluence and DC lightning protection, reducing user costs.
● 4 independent MPP trackers with flexible configuration and installation, improving energy generated
● Mobile APP, RS485, USB, Ethernet interface and Wi-Fi wireless communications
● PLC power carrier communication technology, no need of special communication cables.
● Built-in data library, complete saving of daily/weekly/monthly/yearly operation information
High Efficiency Power Generation
● Wide DC input range up to 1100V
● Transformerless design, conversion efficiency up to 99%, Europe efficiency up to 98.7%
● 8 strings of intelligent monitoring and failure detection, which reduces time of fault location and provides accurate and timely detection of the PV panels mismatch
● Integrate with PID elimination function of PV panels, reducing power generation attenuation
Advanced Control Technology
● Continuous regulation (0 ~ 100%) function of active power
● Adaptive control technology, adapting to harsh weak power grids environment
● Meet the various requirements of reactive power regulation, power factor range is 0.8 leading to 0.8 lagging
● LVRT, HVRT and SVG function at night
High Reliability
● DC shut-off circuit breaker for safe and convenient maintenance operating
● Non-fuse design, avoiding risk of fire caused by DC sides failure
● Natural heat convection, no need of external fans
● 5 years standard warranty, 25 years extension warranty
In the string system, the PV modules are connected in series to form a PV string, and the single or two parallel PV strings pass through the independent DC/DC DC boost converters inside the string inverter, and then share the string inverter. The same set of inverter circuits inside the device realizes grid-connected power generation. Therefore, this string system architecture has multiple MPPT functions. This kind of system generally has two-stage power conversion structure of DC boost and AC inverter. When the input voltage is low, the DC boost converter will work and complete the MPPT function. When the input voltage is high, the MPPT function is realized by AC inverter. . Group-type inverters are widely used in distributed photovoltaics. They are generally installed in industrial and commercial or domestic roofs, and can also be installed in agricultural greenhouses, fishing ponds, and barren hills. The household roof is distributed using a single-phase grid-connected inverter, and the power section is generally from 1.6 to 5 kW. Other medium and large power applications use three-phase grid-connected inverters, and the power section generally ranges from 5 to 60 kW.
MODEL |
HC5OKTLSI |
INPUT(DC) |
|
Max input power |
51.5KW |
Max input voltage |
1100V |
Starting voltage |
250V |
Max. DC input current |
4*22A |
MPPT voltage range |
200-1000V |
MPPT voltage range at full-load |
600~850V |
Number of MPPIS |
4 |
Rated DC input voltage |
720V |
DC terminals |
2*8 |
MPPT efficiency(static) |
>99.9% |
Withstanding voltage insulation for DC input against the enclosure |
Basic insulation 3000 Vdc/1 min |
OUTPUT(AC) |
|
Rated output power |
50 KW |
Max. apparent power |
50.5 KVA |
Max. active power(cosΦ=1) |
50.5 KW |
Rated output voltage |
3*277 / 480 Vac + PE |
Rated output current |
60.1 A |
Max. allowable output current |
60.8A |
Rated frequency |
50 Hz/60 Hz |
DC Component |
< 0.5% (rated current) |
THD |
3%(rated power) |
Power factor |
0.8 leading-08 lagging |
Withstanding voltage insulation for AC output slides against the enclosure |
Basic insulation 3000 Vdc/1 min |
EFFICIENCY |
|
Max. inverter efficiency |
99% |
Europe efficiency |
98.7% |
PROTECTIONS |
|
input reverse connection protection |
Yes |
DC input switch |
Yes |
DC overvoltage and overload protection |
Yes |
Output AC short-circuit protection |
Yes |
AC overload, overcurrent limitation and protection |
Yes |
Grid over/under-voltage and unbalanced |
Yes |
Grid over / under-frequency protection |
Yes |
Leakage protection |
Yes |
Lightning protection |
Yes |
Islanding protection |
Active and passive protection |
DC surge protection |
Yes |
AC surge protection |
Yes |
Insulation resistance detection protection |
Yes |
CERTIFICATES AND APPROVALS |
|
Certificates |
VDE / TUV / CE / CQC |
Grid-connected standard |
TUV/VDE-AR-N-4105/G59 |
EMC / safety |
EN 61000-6-2, EN61000-6-3, EN 61000-3-2, EN 61000-3-3, EN 61000-3-11, EN 61000-3-12, EN / IEC 62109-1, EN / IEC 62109-2 |
DISPLAY AND COMMUNICATIONS |
|
Display |
LED indicators/APP |
RS485 |
Yes |
USB |
Yes |
PLC |
Optional |
Wi-Fi |
Optional |
GPRS |
Optional |
APP |
Yes |
OTHERS |
|
Standby loss |
<15W |
Topology |
Transformerless |
MTBF |
40,000h |
Warranty |
5 years (standard), 10/15/20/25 years (optional) |
Operating temperature |
– 25 °C ~ + 60 °C |
Cooling |
Natural cooling |
Relative humidity |
0 ~ 100% non-condensing |
IP rating |
IP 65 |
Max. operating altitude |
5000 m (derating for above 4000 m) |
Dimensions (W × D × H) (mm) |
640 × 255 × 850 |
Packaged dimensions (W × D × H) (mm) |
735× 955× 355 |
Net weight (kg) |
65 |
Gross weight (kg) |
68 |







