NewMedium-voltage power skid

APEXX2500

2.5 MW · 10 – 35 kV · 2 × 1.25 MW groups · one 20 ft skid

An AMPROTEQ APEX X2500 medium-voltage power skid on a concrete plinth, with converter drawers, a guarded transformer bay and a distribution cabinet, in front of a mountain range
2 500kWRated AC power2 750 kW maximum
10–35kVMV output2 500 kVA step-up
2 × 1.25MWDC groups6 × 215 kW per group
99%PCS peak efficiency215 kW module
IP54Outdoor rated−30 … +60 °C
The grid interface, in one frame

Battery in.
Medium voltage out.

Twelve 215 kW string converters in two 1.25 MW groups, a 690 V bus and an oil-immersed step-up to 10 – 35 kV, factory-integrated on one 20 ft skid and tested before dispatch. Site work is placement and terminations.

Download the datasheet · PDF, 3.2 MB See it in the plant ↓
01 DC in 1 000–1 500V

12 × 206 A inputs, paralleled into two groups: one per battery DC bus.

02 Converter bus 690V AC

12 × 215 kW bidirectional PCS on a 2 500 / 2 750 kW bus.

03 Point of connection 10–35kV

2 500 kVA step-up, fused load-break switch, surge arresters.

Anatomy · X2500-MV-O

From string to substation,
in six metres.

Each battery DC bus feeds its own group of six converters. A fault trips a converter or a group, never the skid.

The APEX X2500 skid seen side-on: six converter drawers and a branded service door on the left, twin mesh doors over the transformer in the centre, the distribution cabinet in the open bay on the right
Visualisation
  1. PCS modules12 × 215 kW, two groups
  2. Step-up transformerOil-immersed, 2 500 kVA
  3. Distribution cabinetSwitching, protection
  4. Status & EPORun / fault lamps, e-stop
  5. DC cable entryFrom A5000 buses A / B
  6. 20 ft ISO frameCorner castings, one skid
  7. Guard doorsFull-height mesh, lockable
  8. Earth & fire pointBonded at every corner
6 058 × 2 438 × 2 896 mm≈ 16 t20 ft container skidForced-air cooling
Why it holds up

Five design decisions.

  1. 01

    Straight to medium voltage

    Conversion, step-up and distribution in one skid. No separate inverter station, no loose transformer on site.

  2. 02

    Two 1.25 MW groups

    Each DC bus feeds six converters. A group isolates on its own; the other keeps running.

  3. 03

    Faults stay local

    A converter or a group trips, not the skid. Breakers per module and per group.

  4. 04

    Grid-forming ready

    Virtual-synchronous-generator control on every module supports a weak or islanded grid.

  5. 05

    Cluster management

    String-level control lifts usable capacity and evens out battery ageing across the block.

In the plant

One APEX, one A5000.
Every plant is a count of them.

The X2500 is matched to the A5000 block: each of its two DC buses feeds one 1.25 MW group of six converters. Larger plants add pairs on an MV collector, under one Solaris™ controller.

2 500kWRated · 2 750 max
5 016kWh12 × 418 kWh
1.94hUsable at 2.5 MW, BOL
2 × 6DC buses × converters
Plant scaling
2.5MWRated power
5.0MWhEnergy
MV collector current at rated powerA
11 kV
131
22 kV
66
33 kV
44

Calculated at unity power factor. Above 1 250 A the collector favours a higher voltage.

Specification

X2500 · 2 500 kW · 10–35 kV

Typical configuration. Final values are fixed in the project technical agreement.

DC side
Operating voltage
1 000 – 1 500 V
DC inputs
12 × 206 A, paralleled into 2 groups
Converters
12 × 215 kW string PCS, bidirectional
Groups
2 × 1.25 MW, 6 converters each, one per A5000 DC bus
Group switching
DC isolator and AC breaker per group, into one 690 V bus
Group current
≈ 940 A DC at 1 331 V · ≈ 1 046 A AC at 690 VCalculated, A5000 nominal voltage
Charging method
BMS command · three-stage · MPPT
Operating modes
CC · CP · MPPT · AC or DC voltage source
AC low-voltage side
Rated / maximum power
2 500 / 2 750 kW
Rated grid voltage
690 V
Frequency
50 / 60 Hz ± 5 Hz
Current distortion
THDi < 3 % at rated power
Power factor
−1 leading to +1 lagging
Grid support
VSG control, grid-forming capable
PCS peak efficiency
Up to 99 %, 215 kW module
Medium-voltage side
Transformer
Oil-immersed step-up
Rated / maximum
2 500 / 2 750 kVA
Voltage ratio
0.69 / 10 – 35 kV
MV current, rated
≈ 131 A at 11 kV · 66 A at 22 kV · 44 A at 33 kVCalculated, unity power factor
MV switching
Fused load-break switch, surge arresters, voltage indication
Enclosure & environment
Enclosure
20 ft container skid, IP54
Dimensions (W × D × H)
6 058 × 2 438 × 2 896 mm
Weight
≈ 16 t
Operating temperature
−30 … +60 °C, derating above 45 °C
Altitude
3 000 m, derating above
Humidity
0 – 100 %, non-condensing
Cooling
Forced air
Control & communication
Energy management
Solaris™ EMS
Communication
RS-485 / CAN / Ethernet
Battery interface
Cluster management, BMS command
Applications
Ground-mounted storage, C&I plants, utility nodes
PCS module · tested to
Safety
EN 62109 · IEC 62477
EMC
EN IEC 61000 · EN 62920
South Africa
NRS 097-2-1
Europe
EN 50549-1 / -2 · VDE-AR-N 4110 · NC RfG
United Kingdom
G99 · G100
Other
IEC 61727 · IEC 62116 · FD C11-519-12 · SunSpec

Scope of supply: PCS modules, LV distribution, step-up transformer, MV switching and the EMS interface, factory-integrated and tested before dispatch. Battery, MV cabling and civil works are scoped per project. Certificates apply to the 215 kW PCS module; skid-level tests are per project.

Size your plant around an APEX.Send the grid offer and the dispatch you need. We return the block count, skid layout and single-line diagram.
Datasheet · PDF Request a sizing
DC blocksThe A5000 behind it.5 MWh of liquid-cooled LFP on two DC buses, one per 1.25 MW converter group. Every other DC block in the range pairs with an MV skid too.DC blocks → Power convertersThe modules inside.The 215 kW string PCS on the skid is the same converter supplied for low-voltage DC block plants, with its own test certificates.Power converters →