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
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Point of disconnection between solar farm and grid
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Interface protection between solar farm and grid
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Revenue grade metering for solar farm energy and LGC creation
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Remote access (Advanced & Pro Models only)
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SCADA interface (Pro Model only)
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Optional – In built Power Quality Meter – NER 2 ready (Pro Model only)
Benefits
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Turn-key grid connection solution – reduces grid connection headache
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Combines Switchgear, Metering & SCADA in one package – reduces complexity
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Standardised Solution – reduces engineering and project management costs
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High quality equipment and established suppliers gives long life and availability of spares
Customers
Small-Med Renewable Energy Contractors
– provides the full Grid Connection solution allowing them to focus on construction of solar plant
e-Cube Brochure
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.