Latvia – Public tender: 650 kVA prime / 715 kVA standby containerised sets
A written technical specification (public tender) for 650 kVA prime / 715 kVA standby containerised sets: we analysed the requirements and selected TRX SD TA 0725 (SDEC SC27G830D2, 725 kVA standby / 659 kVA prime), answered 14 points in a compliance table and prepared the documents listed below.
- Country
- Latvia
- Application
- Public tender
- Power
- 725 kVA standby / 659 kVA prime · 50 Hz
- Quantity
- Several sets
- Source of requirements
- Written technical specification
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The request
| Rating | 650 kVA prime / 715 kVA standby |
|---|---|
| Electrical | 400/230 V, 50 Hz, 3-phase, 1500 rpm |
| Site conditions | Max 40 °C, min -30 °C |
| Noise | 75 dB(A) at 7 m |
| Enclosure | Container |
| Fuel tank and autonomy | 1,200 L tank, 8 h autonomy at 75 % load |
| Engine | Water-cooled, turbocharged; EN 590 fuel; Fuel consumption ≤95 L/h at 75% and ≤120 L/h at 100% load; Start at -20 °C without pre-heater |
| Alternator | PMG or AREP excitation; Full damper winding; Class H; IP23; 3-phase sensing AVR ±0.5%; THD <2% no load / ≤4% load |
| Controller and communications | GSM + location + history log; Remote start/stop; USB log; Grid-parallel (GPO); Synchronisation/load sharing up to 3 sets; 5 years free monitoring software |
| Standards | ISO 9001:2015; CE; LVD; EMC; 2005/88/EC; 2006/42/EC; IEC 60034-1; ISO 8528-1 |
| Other requirements | LTP ≥715 kVA; 20' ISO 1CC container 6058×2438×2591 mm, silencer ≤+300 mm; 3 compartments, ISO 1161 corner fittings; 16×15 m 185 mm² cables; Gas fire suppression, A1 insulation, panic bars; Cold-climate heaters; Factory noise report (8 points at 7 m) with the bid |
Our work
Requirement analysis · Model selection and sizing
- 650 kVA PRP and LTP ≥715 kVA required → selected 659 kVA prime / 725 kVA standby model
- Alternative with 700 kVA standby rejected (below 715 kVA LTP)
- Fuel limits checked: 106.7 L/h at 75% and 141 L/h at 100% vs ≤95 / ≤120 L/h
- Standard canopy height exceeds 20' ISO container → container layout required
Point-by-point compliance table
| Item | Required | Our proposal | Assessment |
|---|---|---|---|
| Prime power | 650 kVA prime | 725 kVA standby / 659 kVA prime | Complies |
| Frequency and speed | 50 Hz | 50 Hz, 1500 rpm | Complies |
| Fuel tank | 1,200 L | 1,263 L base tank | Complies |
| Fuel ≤95 L/h at 75% load | – | – | Deviation / to be confirmed |
| Fuel ≤120 L/h at 100% load | – | – | Deviation / to be confirmed |
| 20' ISO 1CC container with hook-lift DIN 30722 | – | – | Deviation / to be confirmed |
| 3-compartment layout, ≥1,200 L tank | – | Layout drawing to be confirmed | Deviation / to be confirmed |
| PMG/AREP alternator, AVR ±0.5% | – | – | With option |
| Noise report 8 points at 7 m with bid | – | Factory test to be performed | Deviation / to be confirmed |
| Negative phase sequence current ≥10% | – | Alternator manufacturer declaration to be provided | Deviation / to be confirmed |
| Grid parallel and EN 50549 protection | – | Controller capable; grid requirements to be confirmed | Deviation / to be confirmed |
| -20 °C start without pre-heater | – | Engine manufacturer confirmation required | Deviation / to be confirmed |
| Cold-climate heaters | – | Cold-climate package | With option |
| Trailer registration, cables, handover load test, 72 h replacement set | – | By bidder; Terex Diesel technical support | Buyer / local scope |
Options identified and priced
- 20' container execution
- Hook-lift frame
- PMG + MX321 or AREP + D550 alternator
- Cold-climate package
- Stage V engine version
- 3-axle trailer
- Spare replacement unit for bidder
Documents prepared · Offer package
- Compliance table
- Compliance table prepared with 136 clauses (99 yes, 8 yes-option, 27 to be confirmed, 2 deviations)
Proposed solution
TRX SD TA 0725
| Standby power | 725 kVA / 580 kW |
|---|---|
| Prime power | 659 kVA / 527.2 kW |
| Voltage · Frequency · Speed | 230/400 V · 50 Hz · 1,500 rpm |
| Engine | SDEC SC27G830D2 · 26.6 L |
| Alternator | Terex TA355-550N · AVR AS440 · IP23/H |
| Fuel consumption · At 75% load | 106.7 L/h |
| Fuel consumption · At 100% load | 141 L/h |
| Fuel tank (Canopied (soundproof)) | 1,263 L |
| Dimensions (L × W × H) (Canopied (soundproof)) | 4,200 × 1,816 × 2,806 mm · 5,463 kg |
| Dimensions (L × W × H) (Open type) | 3,750 × 1,700 × 2,350 mm · 4,635 kg |
Values are taken from the model’s datasheet; the full datasheet and catalogue page are on the model page.
Offered configuration
- Controller: Deep Sea DSE8610 MKII
- Built into new 20' ISO 1CC container with DIN 30722-1 hook-lift frame
- ≥1200 L tank in container layout
- Cold-climate package as option
Packing, shipping and export documents
- Loading: 20' ISO 1CC on 3-axle trailer
- Sets are secured on the vehicle or in the container; loose parts travel in crates or on pallets.
- Export documents: commercial invoice, packing list, certificate of origin, A.TR movement certificate for EU customs clearance, factory test report.
Customer, tender and site names are withheld; only the country is shown. Prices and commercial terms are not published. Customer documents are not shared; requirements are summarised in our own words.
How we work with your specification
- Send the specification, datasheet form or list of needs (PDF, Excel, Word or a message).
- We reply on the same working day and ask about missing or unclear points.
- We size the power (prime/standby), voltage, frequency, ambient conditions and autonomy, select the model and prepare a point-by-point compliance table. Deviations and options are stated openly.
- We send the package — offer, datasheet, catalogue pages and any forms requested; for standard configurations within 24 hours.