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3750 kVA Three Phase Pad Mounted Distribution Transformer 12870V To 480Y/277V ANSI IEEE Standards
| Nom De Marque: | WINLEY |
| Numéro De Modèle: | ZGS-H-3750/12.87/0.48 |
| Nombre De Pièces: | 1 unité |
| Prix: | $5000-$150000 |
| Détails De L'emballage: | caisse en contreplaqué |
| Conditions De Paiement: | T/T |
3750 kVA Three Phase Pad Mounted Distribution Transformer 12870V To 480Y/277V ANSI IEEE Standards
Product Overview
This 3750 kVA three-phase pad-mounted transformer is designed for North American medium-voltage distribution applications, including utility distribution, commercial complexes, industrial facilities, campus power systems, and outdoor projects requiring 12.87 kV to 480Y/277 V voltage conversion. Built in accordance with ANSI C57.12.34, it features 7-step high-voltage tap adjustment, 95 kV / 30 kV BIL insulation level, and integrated fuse, arrester, and loadbreak switch configuration. These specifications support project specification review, site voltage matching, insulation coordination, and outdoor equipment protection, while the integrated protection and switching layout helps simplify installation, field operation, and routine maintenance.
Product Photo
Main data
| Type | Pad mounted, Loop feed |
| Rated Capacity | 3750 kVA |
| No. Of Phase | 3 |
| Primary Voltage | 12470 V |
| Secondary Voltage | 480Y/277 V |
| Cooling Method | ONAN |
| Rated Frequency | 60 Hz |
| Vector Group | Dyn1 |
| Insulation Class | A (105℃) |
| Temperature Rise | 65 K |
| Off-Load Loss | 3700 W |
| On-Load Loss (85℃) | 27300 W |
| Impedance | 5.75~6.75 % |
| Winding Material | Aluminum |
| Service Condition | Indoor Or Outdoor |
| Sea Level | ≤1000 M |
| Dimension | 114*90*83 inch |
| Total Weight | 15540 LBS |
Technical drawings
Standard Features
- Pressure Relief Valve - Sight glass or magnetic gauge for visual oil volume verification
- Oil Filling Valve - Inlet port for adding or replenishing dielectric oil during commissioning or maintenance
- Oil Level Indicator - Sight glass or magnetic gauge for visual oil volume verification
- Oil Drain Valve - Bottom-mounted valve for complete oil evacuation and sampling
- HV Bushings - Insulated terminals that allow high-voltage conductors to pass through the tank wall safely
- LV Bushings - Insulated terminals for low-voltage conductor egress through the tank wall
- Bayonet Fuse - Protective device that interrupts circuit during overcurrent conditions
- Grounding Pad - Connection point for safety earthing and protective grounding of the tank
- Tap Changer - On-load or off-circuit voltage regulation device for turns ratio adjustment
- Cooling Radiators - Heat exchanger fins that increase surface area for convective heat dissipation
- Thermometer - Temperature measurement device for monitoring thermal conditions
- Pressure Indicator - Gauge that displays internal tank pressure for monitoring gas accumulation and seal integrity
- Lifting Lugs - Load-bearing attachment points for crane lifting and transportation
- Nameplate - Data plate containing rated kVA, voltage class, impedance, and manufacturer info
Applications
| Sector | Applications |
| Industrial | Manufacturing plants, heavy machinery, assembly lines, warehouses, and industrial park distribution systems |
| Utility | Distribution substations, medium-voltage distribution networks, grid support facilities, and renewable energy site distribution systems |
| Commercial | Large office buildings, hospitals, shopping centers, hotels, data centers, and other large commercial facilities |
| Infrastructure | Airports, railway systems, water treatment plants, municipal projects, and public service facilities |
Specification
| Rated Power (KVA) |
High Voltage (KV) |
Low Voltage (V) |
No-load Loss (W) |
On-load Loss (W) |
Height (mm) |
Depth (mm) |
Width (mm) |
Weight (kg) |
Weight (Lbs) |
| 75KVA | 34.5KV 4.160KV 12.47KV 13.2KV 13.8KV 24940GrdY/14400 1247Grdy/7200 4160GrdY/2400 or others |
277V 347V 480V 600V 120/240V 208GrdY/120 415GrdY/240 480GrdY/277 600Y/347 |
180 | 1250 | 1430 | 910 | 1930 | 645 | 1422 |
| 150KVA | 280 | 2200 | 1530 | 980 | 1510 | 989 | 2180 | ||
| 300KVA | 480 | 3650 | 1680 | 1080 | 1660 | 1415 | 3119 | ||
| 500KVA | 680 | 5100 | 1790 | 1160 | 1810 | 1905 | 4200 | ||
| 750KVA | 980 | 7500 | 2030 | 1300 | 2030 | 2755 | 6074 | ||
| 1000KVA | 1150 | 10300 | 1854 | 1549 | 1651 | 3235 | 7132 | ||
| 1500KVA | 1640 | 14500 | 2150 | 1570 | 2210 | 5835 | 12864 | ||
| 2000KVA | 2160 | 20645 | 2220 | 1600 | 2380 | 6430 | 14175 | ||
| 2500KVA | 2680 | 23786 | 2330 | 1650 | 3070 | 8865 | 19544 | ||
| 3000KVA | 3300 | 30300 | 2460 | 1850 | 3260 | 11300 | 24912 | ||
| 3735KVA | 4125 | 37875 | 2680 | 2060 | 4080 | 14400 | 31746 |
Production process
