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Characteristics
TECHNICAL DETAILS

String Station

ZGR SOLAR STS 2500 / 3500 / 5000

String station - 2500 / 5000 LV - 3500 MV

The ZGR SOLAR STS 2500 / 3500 / 5000 is the ideal turnkey solution for large photovoltaic plants.

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Characteristics

The ZGR SOLAR STS is a on-skid plug and play solution, that is fully equipped with inverters optionally connected to a transformer station and medium-voltage switchgear, in addition to auxiliary and communication services for its use in photovoltaic installations.

It is a turnkey solution that enables the overall efficiency of a conversion system to be increased and installation costs reduced.

All its electronic devices are adapted according to the technical needs required by the installation and are combined in order to reach maximum performance, efficiency and uninterrupted operation during its entire useful life.

High voltage input range
Modular - Standard string inverters
Active and reactive power control
LVRT / HVRT / FRT functions
Skid transportable in standard container
Easy installation (Plug & Play)
Medium-voltage transformer (optional)
Multiple protection devices
Modular interior design for easy maintenance
Customised designs according to the needs of the project

TECHNICAL DETAILS

TECHNICAL SPECIFICATIONS

Model	ZGR SOLAR STS 2000 LV	ZGR SOLAR STS 4000 LV	ZGR SOLAR STS 2500 MV
Power	2000 kVA	4000 kVA	2500 kVA

ELECTRICAL INPUT CHARACTERISTICS
ELECTRICAL INPUT CHARACTERISTICS	1080 V
Power tracking range (MPPT)	600 – 1500 Vdc
String Inverted Model	ZGR SOLAR STR 250
Number of inverters	8	16	10

ELECTRICAL OUTPUT CHARACTERISTICS
Rated output power	2000 kW @40 ºC, 1800 kW @50ºC	4000 kW @40 ºC, 3600 kW @50ºC	2500 kW @40 ºC, 2250 kW @50ºC
Maximum output power	2000 kVA	4000 kVA	2500 kVA
Rated LV output voltage	800 Vac, 640 ~ 920 V
Rated MV output voltage	–	–	10 - 35 kV (1)
Frequency range	50/60 Hz (± 5 Hz) (adjustable)
Power factor	0.8 capacitive ~ 0.8 inductive
THDi	< 3%

PROTECTION DEVICES
Detection of AC leakage currents	Yes
Detection of leakage to earth	Yes
LVRT	Yes
Anti-islanding	Yes
Reverse polarisation	Yes
AC overvoltage	Yes
DC overvoltage	Yes

GENERAL CHARACTERISTICS
Maximum efficiency (ZGR SOLAR STR 250)	99%
European efficiency (ZGR SOLAR STR 250)	98,5%
MPPT Efficiency (ZGR SOLAR STR 250)	> 99%
Cooling method	Natural ventilation
Communications	RS 485, Ethernet (optional)

AMBIENT AND MECHANICAL CHARACTERISTICS
Ambient temperature range	-25 ºC ~ 60 ºC (> 40ºC derating)
Ambient protection rating	Outdoors
Operating altitude	2000 m (without power losses)
Noise level (ZGR SOLAR STR 250)	≤ 70 dB
Relative humidity	0 to 100% (without condensation)
Approx dimensions (WxHxD)	6 x 2,2 x 2,2 m (20 feet)	12 x 2,2 x 2,2 m (40 feet)	12 x 2,5 x 2,2 m (40 feet)

Hybrid, robust and reliable solutions

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