MT-10/0.4-1 X 630
Designed for receiving 10 kV, 50 Hz electrical power and transforming it to 0.4 kV voltage for distribution to users; this is an outdoor service transformer substation connected to external networks via underground cables.
| Dimensions (H.W.D.), mm | |
|---|---|
| Number of transformers | |
| Transformer rated voltage MV/LV, kV | |
| Transformer rated voltage MV/LV, kV | |
| Rated frequency (fn) | 50 Hz |
| Degree of protection (IP) | IP44 |
| Altitude above sea level | ≤ 2000 m |
| Ambient temperature | -35…+40°C |
| Relative humidity | ≤ 100% (at +25°C) |
| Ventilation | Passive (natural convection) / Active (mechanical forced ventilation) |
| Standards | LST EN 62271-202 |
| 10 kV section | — |
| 10 kV Vardinė įtampa | 10 kV |
| 10 kV Maximum voltage: | 12 kV |
| 10 kV Test voltage (50Hz, 1 min): | 28 kV |
| 10 kV Vardinis dažnis, Hz | 50 Hz |
| 10 kV Impulse test voltage (1.2/50 μs): | 75 kV |
| 10 kV switchgear compartment maintenance: | External |
| 10 kV Switchgear insulation: | Air insulation |
| 10 kV Network neutral: | Isolated |
| 10 kV Degree of protection: | IP3X |
| 10 kV Service category: | LSC2A |
| 10 kV Disconnectors | According to AB 'ESO' technical requirements |
| 10 kV Surge arresters | According to AB 'ESO' technical requirements |
| 0.4 kV section | — |
| 0.4 kV rated busbar current | ≥1900 A |
| 0,4 kV šynų trumpo jungimo srovė | 25 kA |
| 0.4 kV busbar rated peak withstand current | 40 kA |
| Maintenance of 0.4 kV section: | Vienpusis – išorinis |
| 0.4 kV rated insulation voltage | 690 V |
Optional accessories
MT-10/0.4-1 X 630
Designed for receiving 10 kV, 50 Hz electrical power and transforming it to 0.4 kV voltage for distribution to users; this is an outdoor service transformer substation connected to external networks via underground cables.
| Dimensions (H.W.D.), mm | |
|---|---|
| Number of transformers | |
| Transformer rated voltage MV/LV, kV | |
| Transformer rated voltage MV/LV, kV | |
| Rated frequency (fn) | 50 Hz |
| Degree of protection (IP) | IP44 |
| Altitude above sea level | ≤ 2000 m |
| Ambient temperature | -35…+40°C |
| Relative humidity | ≤ 100% (at +25°C) |
| Ventilation | Passive (natural convection) / Active (mechanical forced ventilation) |
| Standards | LST EN 62271-202 |
| 10 kV section | — |
| 10 kV Vardinė įtampa | 10 kV |
| 10 kV Maximum voltage: | 12 kV |
| 10 kV Test voltage (50Hz, 1 min): | 28 kV |
| 10 kV Vardinis dažnis, Hz | 50 Hz |
| 10 kV Impulse test voltage (1.2/50 μs): | 75 kV |
| 10 kV switchgear compartment maintenance: | External |
| 10 kV Switchgear insulation: | Air insulation |
| 10 kV Network neutral: | Isolated |
| 10 kV Degree of protection: | IP3X |
| 10 kV Service category: | LSC2A |
| 10 kV Disconnectors | According to AB 'ESO' technical requirements |
| 10 kV Surge arresters | According to AB 'ESO' technical requirements |
| 0.4 kV section | — |
| 0.4 kV rated busbar current | ≥1900 A |
| 0,4 kV šynų trumpo jungimo srovė | 25 kA |
| 0.4 kV busbar rated peak withstand current | 40 kA |
| Maintenance of 0.4 kV section: | Vienpusis – išorinis |
| 0.4 kV rated insulation voltage | 690 V |
Compartment layout and installation:
The power transformer is lifted in from the top after removing the roof. The transformer, fitted with wheels (rollers), is placed into designated fixing positions that prevent the transformer from moving.
MV - (Eng. medium voltage) medium voltage compartment with equipment;
LV - (Eng. low voltage) low voltage compartment with equipment;
KAS - Commercial metering (tariff metering).
Enclosure:
Transformatorinę sudaro gelžbetoninis pamatas ir metalinis korpusas su nukeliamu stogu. Transformatorinė susideda iš trijų pertvaromis atskirtų dalių:
10 kV skyrius, galios transformatoriaus skyrius, 0,4 kV skyrius.
Medium voltage:
To be equipped with hermetically sealed air-insulated medium-voltage switchgear; space for an RTU provided.
Transformer:
Paruoštos vieta su alyvos surinkimo duobe , trijų fazių, hermetiškam alyviniam transformatoriui; (≤1500x1000x1800) iki 630 kVA.
Low voltage:
Incoming fuse-switch block; Space for control metering; Space for commercial metering (KAS); Designated space for up to 8 linear fuse-switch blocks; Aluminum (Al) or Copper (Cu) busbars with pressed-in bushings (for convenient mounting of fuse-switch blocks); Auxiliary panel (SRS).
Grounding conductors:
Transformer construction: 10 mm²; Doors: 4 mm².
Auxiliary power supply cabinet (SRS):
Plug socket ~230V with grounding contacts, protected by RCCB and 1-phase C16A circuit breaker; 1-phase C6A circuit breaker for protection of 10 kV short-circuit indicator power supply; 1-phase C6A circuit breaker for lighting protection.
Verification metering
Numatyta 1 vieta (trijų fazių) kontroliniam elektros apskaitos prietaisui ir bandymų gnybtui 0,4 kV paskirstymo įrenginių skyriaus dalyje, užsakius: srovės transformatoriai sumontuojami ir prijungiami.
