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Preliminary datasheet · Rev 0.1Certification in progress

BDC125K

125 kW bidirectional power conversion system for battery energy storage

Links a battery string to the 415 V three-phase LT network. Its SiC stage charges and discharges on EMS command while controlling active and reactive power at the point of connection.

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BDC125K power conversion system
BDC125K125 kW bidirectional PCS
Rated power
125 kW / 125 kVA
AC connection
415 V, 3-phase
Battery voltage
650–950 V DC
Peak efficiency
98.9 %

Application

Where it sits in your site

BDC125K connects on the 415 V LT bus, behind the site's own transformer and meter. Sensitive or 4-wire loads use an external isolation transformer.

Utility grid11 kV
Transformer11 kV / 415 V
Meter
415 V LT bussite loads
Isolation transformeroptional
BDC125K125 kW PCS
Battery650–950 V DC
Communication EMS ↔ BDC125K · Modbus RTU BMS ↔ BDC125K · isolated CAN

Specifications

Technical parameters

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DC side (battery)
Operating voltage650–950 V
Max. DC voltage1000 V
Max. DC current200 A
AC side (grid)
Rated power125 kW / 125 kVA
Grid connection3-phase, 3-wire + PE
Rated voltage415 V line-to-line
Voltage range360–460 V
Rated current190 A
Frequency50 Hz (47.5–52 Hz)*
Power factor−1 to +1
Current THD< 3 % at rated power*
Power stage
Topology2-level, 3-leg SiC MOSFET active front end
Grid filterLCL with active damping
IsolationTransformerless; external isolation transformer for 4-wire loads
Peak efficiency98.9 %
CoolingForced air, temperature-controlled
Mechanical & environmental
Dimensions (W × H × D)520 × 750 × 250 mm
EnclosureIP20
Operating temperature−20 to +60 °C, derating above 55 °C
Relative humidity0–95 %, non-condensing
Altitude≤ 2000 m without derating
Communication
BMS interfaceIsolated CAN
EMS interfaceModbus RTU
Standards & certification
Grid codeDesigned to IS 16169, EN 50549, IEEE 1547 and CEA connectivity standards
Safety / EMCIEC 62477-1; IEC 61000-6-2 / -6-4*
CertificationIn progress

* Design target. Specifications are subject to change without notice.

Downloads

Documents for your engineering team

PDF · 171 KB · Preliminary, Rev 0.1

BDC125K datasheet

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PDF

Technical white paper

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