PCS · Prefabricated

SES4H-5160/6900-MV-EX Prefabricated Inverter Substation

Highly integrated prefabricated cabin combining inverter and step-up substation for utility-scale PV+storage and grid connection.

Product overview

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Integrated inverter and step-up substation for higher space efficiency and simpler installation.

Modular architecture; power scales with the number of modules.

1500V-class wide DC voltage range; multi-branch DC design to avoid circulating current.

Supports VSG / PQ / VF modes with peak shaving and local automated operation.

HVRT/LVRT; four-quadrant P/Q control; fast power response (<20ms).

N × 215 kW @ 45°C; N × 129 kW @ 50°C (N = 20–32). THDi/THDu < 3%.

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Category	Parameter	Specification
AC & DC parameters	Rated AC power	N × 215 kW @ 45°C; N × 129 kW @ 50°C (N = 20–32)
AC & DC parameters	Max AC power	110% rated for 2 minutes (≤ 45°C)
AC & DC parameters	AC voltage / frequency	10 kV–33 kV / 50 Hz
AC & DC parameters	DC voltage range	1000 V–1500 V (1070 V reference at full-load discharge)
AC & DC parameters	THDi / THDu	< 3%
AC & DC parameters	Max DC current (per branch)	1612 A / 201 A
LV & auxiliary equipment	Auxiliary transformer	50 kVA, 690 V / 400 V
LV & auxiliary equipment	UPS	2 kVA (1 h standard)
LV & auxiliary equipment	Cooling	Temperature-controlled forced-air cooling
Transformer	Capacity	5200 kVA @ 45°C or 6900 kVA @ 45°C
Transformer	Vector group	Dy11y11
Transformer	Type / cooling	Oil-immersed / ONAN
Transformer	Efficiency	Tier 2 (EU548)
Transformer	Transformer protection	Pressure relay; two-stage temperature; gas (Buchholz) relay
Switchgear & protection	Switchgear configuration	DeV / CV / CCV / VMV (customized)
Switchgear & protection	MV switching & protection	Vacuum circuit breaker (VCB), microcomputer-based protection
Switchgear & protection	DC side protection	DC circuit breakers / fuses
General & environment	Enclosure size (W×H×D)	40 ft (12192×2896×2438 mm) or 45 ft
General & environment	Total weight	≤ 30 t
General & environment	Enclosure protection	IP54 (overall)
General & environment	Operating temperature	-25°C to 60°C (derate above 45°C)
General & environment	Corrosion prevention	C5 (external mechanical parts only)
Communication	Interfaces	RS485, CAN, TCP/IP

Design and type tests align with the following standards and grid codes (subject to the certificate package for each delivery).