Utility Products

e-Cube - Utility Grid Connection Solution

The CTP e-Cube provides a plug and play grid connection package for Utility Scale Solar Farms. We provide products that help our client in obtain grid connection without delay and at low cost.

The CTP e-Cube is a turn-key grid protection solution for the Utility Solar Farm sector. It is manufactured and pre-programmed to meet the specific requirements of each of Australia's NSPs.

We are proud to receive grant from Victorian Government to develop the e-Cube under the second round of the Labor Government’s $20 million New Energy Jobs Fund.

Simple, Easy & Cost Effective

Features

  • Point of disconnection between solar farm and grid

  • Interface protection between solar farm and grid

  • Revenue grade metering for solar farm energy and LGC creation

  • Remote access (Advanced & Pro Models only)

  • SCADA interface (Pro Model only)

  • Optional – In built Power Quality Meter – NER 2 ready (Pro Model only)

Benefits

  • Turn-key grid connection solution – reduces grid connection headache

  • Combines Switchgear, Metering & SCADA in one package – reduces complexity 

  • Standardised Solution – reduces engineering and project management costs

  • High quality equipment and established suppliers gives long life and availability of spares

Customers

Project Developers
– allows engineering support at competitive cost and known technical requirements with the e-Cube

 

Small-Med Renewable Energy Contractors
– provides the full Grid Connection solution allowing them to focus on construction of solar plant

e-Cube Brochure

ecube-brochure-min

e-Cube Models

CTP offers the e-Cube in the following models: BASIC / ADVANCED / PRO

Electrical Specifications (Applicable for Basic / Advanced / Pro)
CONNECTION VOLTAGE 11kV 22kV
Rated Voltage (kV) 12 24
Rated Frequency (HZ) 50 50
Rated Short-Duration Power-Frequency Withstand Voltage (kV) 28 50
Rated Lightning Impulse Withstand Voltage (kV) 75 125
Rated short-time withstand current for 1.0 sec (kA) 20 16
IAC Classification A FLR 20kA 1s A FLR 16kA 1s
Rated Busbar Current (A) 630 630
Rated CB Current (A) 630 400
Maximum Generator Power (MW)[1] 10 12.5
Rated Operating Sequence O – 0.3 s – CO – 3 min – CO O – 0.3 s – CO – 3 min – CO
Number of Breaking Operations[2] 10,000 10,000
Switchgear Type GAS INSULATED (SF6) GAS INSULATED (SF6)
Operating Temperature -25°C – +55°C -25°C – +55°C
Standards IEC62271/AS3000/AS61000/AS3100 IEC62271/AS3000/AS61000/AS3100

[1]  Indicative generation level only. Derating factors and safety margins have been applied.  Other capacities available upon request.

[2] At the rated current of the circuit breaker

Features and Mechanical Details
BASIC ADVANCED PRO
Modes of Operation Local via manual spring charge Remote/local selector switch
Local via push-button
Remote via web interface
Remote/local selector switch
Local via push-button
Remote via web interface
Auxiliary Power Supply 230VAC / 24VDC UPS Battery[1] 230VAC / 24VDC UPS Battery[1] 230VAC / 24VDC UPS Battery[1]
Protection Type Siemens SIPROTEC 5 Platform – Model: 7SJ82 Siemens SIPROTEC 5 Platform – Model: 7SJ82 Siemens SIPROTEC 5 Platform – Model: 7SJ82
Protection Communications N/A Ethernet TCP/IP[2] Ethernet TCP/IP[2]
Protection Installation Location LV compartment LV compartment Secondary Panel
RTU / HMI No No Yes
Remote Access No Yes[3] Yes
PQM No No Option
Revenue Metering Enclosure VIC / NSW / QLD / SA compliant revenue metering enclosure VIC / NSW / QLD / SA compliant revenue metering enclosure VIC / NSW / QLD / SA compliant revenue metering enclosure
Enclosure Type / IP Rating Outdoor rated / IP54 Outdoor rated / IP54 Outdoor rated / IP54
Dimensions 2300 × 2400 × 1200 mm3 3060 × 2400 × 1170 mm3 3060 × 2400 × 1170 mm3
Weight 1000 Kg 1200 Kg 1200 Kg
Separate LV Secondary Panel No Yes Yes
Space for Customer / DNSP equipment No Yes Yes
Installation Type Concrete Pad[4] SKID Mounted SKID Mounted

[1] Minimum 2-hour autonomy time for e-Cube equipment only.  Additional equipment may reduce autonomy time.

[2] Modbus RTU, Modbus TCP, DNP3.0 and IEC61850 available upon request

[3] Remote access available with additional software – contact CTP for further information.

[4] Concrete pad to be provided by others.

Get in touch with us to discuss your requirements!

Get in touch with us to discuss your requirements!