Grid Equipment · KÖBER Energy Holding

Transformers.BESS & PCS.HV Substations.

New Braila Free Zone Factory · Start Q2 2027 delivery

HV, MV and LV transformers, battery energy storage systems and high-voltage substations, with the technical data an engineer needs and one form to define the requirements of a project.

IEC / EN standardsEquipment supplySystem integrationEPC scope
1.1 – 550 kV

Highest voltage for equipment, Um

0.1 – 250 MVA

Transformer rated power

5.0 MWh

Energy per 20-ft BESS container

110 – 500 kV

Substation voltage levels

57

years of expertise in the field.

JSB transformers, BESS and PCS units, now built in the new Braila Free Zone factory.

Equipment families

Three families, one specification.

Read the technical data for each family, then configure your project. Everything ends up on a single technical requirements sheet.

HV / MV / LV

Transformers

100 kVA – 250 MVA · IEC 60076 series

  • HV power, MV collector and inverter-duty
  • Liquid-immersed and cast-resin dry-type
  • Ecodesign Tier 2 losses
  • OLTC with vacuum or oil interrupter
HV powerMV power & collectorMV / LV distributionLV & special
ESS / BESS · IEC 62933 series

Energy Storage Systems

Utility DC block · AC block with MV skid

  • LFP, liquid-cooled 20-ft container, ≥ 8000 cycles
  • Up to 1500 V DC, central or string PCS
  • EMS / SCADA, grid-forming option
  • IEC 62619 · UL 9540 · NFPA 855
Utility-scale DC blockAC block / MV skidC&I cabinet

Applications

FCR · aFRR · mFRREnergy arbitragePeak shavingPV / wind co-locationCapacity mechanismBlack startIslanding / microgridReactive power supportSynthetic inertia
110 – 500 kV · IEC 61936-1 · EN 50522

HV Substations

110 / 220 / 400 / 500 kV · 1250 – 4000 A

  • AIS, GIS, hybrid, compact, mobile
  • 25 – 63 kA short-circuit rating
  • IEC 61850 protection and control
  • EU F-gas 2024/573 compliant
AIS (air-insulated)GIS (gas-insulated)Hybrid / compact / mobile

Primary equipment, protection and control, civil works and system studies in one scope.

System integration

From the grid to the battery.

A single-line view of a grid-connected storage plant. Each component links to the parameters that define it in the configurator.

Grid connection110 / 220 / 400 / 500 kV · Switchgear · CT/VT · arrester
HV bayAIS · GIS · hybrid · IEC 62271-100 · 25 – 63 kA
Power transformerHV/MV · YNd11 · OLTC · 16 – 250 MVA · IEC 60076
MV switchgear20 / 33 kV · LSC2B · IAC AFLR · IEC 62271-200
Skid transformerMV / 0.69 kV · inverter duty · 2.5 – 6.3 MVA per skid
Power conversion systemGrid-following or grid-forming · 2.5 – 5 MVA per skid
Battery containersLFP · 20-ft · 5.0 MWh · ≥ 8000 cycles · up to 1500 V DC

Project delivery

From specification to energisation.

01

Specification

Your project data and technical requirements from the configurator.

02

Engineering review

Sizing, interfaces and the open items left for KÖBER to propose.

03

Technical & commercial offer

Defined scope, guaranteed values, schedule and terms.

04

Manufacturing & FAT

Approved design, production and factory acceptance testing.

05

Delivery

Transport and logistics to the agreed Incoterm.

06

Installation, SAT & commissioning

Site acceptance tests and energisation.

Standards & compliance

Referenced standards.

Applicable editions, test evidence and national grid-code requirements are confirmed per project. This list is not a claim of certification.

Transformers

  • —IEC 60076 series
  • —IEC 60214-1 (tap changers)
  • —IEC 60296
  • —IEC 62770
  • —IEC 61099
  • —EN 50708
  • —ISO 12944
  • —EU 548/2014 and 2019/1783

Energy Storage Systems

  • —IEC 62933 series
  • —IEC 62619
  • —IEC 63056
  • —UN 38.3
  • —UL 9540 · UL 9540A
  • —UL 1973
  • —NFPA 855
  • —EU Battery Regulation 2023/1542
  • —EU RfG 2016/631
  • —EN 50549-2

HV Substations

  • —IEC 61936-1 · EN 50522 · IEEE 80
  • —IEC 62271-100 / -102 / -200 / -203
  • —IEC 61850 · IEC 61000-4-30
  • —IEC 60071 · IEC 62305 · EU 2024/573

Product configurator

Define your technical requirements.

Five steps, one form for all three families. Only your contact details are mandatory; leave any technical field open and KÖBER engineering will propose it.