Technical Parameters
| Parameter | Specification |
| Rated Capacity Range | 15 kVA ~ 333 kVA |
| Primary Voltage | 12.47GrdY/7.2 kV, 13.2GrdY/7.62 kV, 13.8GrdY/7.97 kV, 24.94GrdY/14.4 kV, 34.5GrdY/19.92 kV |
| Secondary Voltage | 120/240 V, 240/480 V, 347/600 V |
| Rated Frequency | 60 Hz |
| Phase | Single-Phase |
| Feed Type | Loop Feed / Radial Feed |
| Cooling Method | OA (Oil-Immersed Self-Cooled) |
| BIL (Primary) | 95 kV (Standard) / 125 kV / 150 kV |
| BIL (Secondary) | 30 kV |
| Temperature Rise | 65°C |
| Construction Type | Dead-Front, Compartmental-Type |
| Enclosure Protection | Tamper-Resistant, Weather-Resistant per IEEE C57.12.28 |
| Finish Color | Munsell 7GY 3.29/1.5 (Pad-Mount Green) |
| No. | Capacity (kVA) | No-Load Loss (W) | Load Loss (W) | Impedance (%) | No-Load Current (%) |
| 1 | 15 | 100 | 350 | 1.8 | 2 |
| 2 | 25 | 140 | 500 | 1.8 | 1.8 |
| 3 | 37.5 | 180 | 650 | 2 | 1.6 |
| 4 | 50 | 220 | 850 | 2 | 1.5 |
| 5 | 75 | 280 | 1100 | 2.2 | 1.3 |
| 6 | 100 | 340 | 1400 | 2.5 | 1.2 |
| 7 | 167 | 480 | 2000 | 2.8 | 1 |
| 8 | 250 | 650 | 2800 | 3 | 0.9 |
| 9 | 333 | 800 | 3500 | 3.5 | 0.8 |
| Capacity (kVA) | L / Length (mm) | W / Width (mm) | H / Height (mm) | Weight (kg) |
| 15 | 900 | 700 | 900 | 280 |
| 25 | 950 | 750 | 950 | 340 |
| 37.5 | 1000 | 800 | 1000 | 400 |
| 50 | 1050 | 850 | 1050 | 470 |
| 75 | 1150 | 900 | 1100 | 560 |
| 100 | 1250 | 950 | 1150 | 660 |
| 167 | 1400 | 1050 | 1250 | 820 |
| 250 | 1600 | 1150 | 1400 | 1050 |
| 333 | 1750 | 1250 | 1500 | 1250 |
Note: The dimensions above are for reference only. Specific dimensions can be customized according to customer requirements.
Construction Features
| Component | Requirement | ||||
| Transformer Tank | Minimum 13 gauge steel, crowned roof to shed water, welded or bolted cover | ||||
| Single Lift-Up Door | Provides access to cable terminating compartment, crowned roof, captive pentahead bolt locking mechanism | ||||
| Cable Terminating Compartment | Minimum 27" width × 14" depth cable entrance opening | ||||
| HV/LV Separation | No barrier between HV and LV segments; minimum 10" clearance between LV studs and door | ||||
| Grounding Pads | Two 1/2"-13 UNC tapped pads welded to tank, with bronze grounding lugs | ||||
| Parking Stand | Max 6" center-to-center spacing between HV bushings and parking stand | ||||
| Lifting Lugs | Four lifting lugs for overhead lifting | ||||
Components & Accessories
| Component | Specification |
| Bushing Wells | Two universal loadbreak bushing wells conforming to IEEE 386, 8.3/14.4kV 200A rating, externally replaceable |
| Bushing Inserts | Factory installed 200A loadbreak bushing inserts with dust caps |
| Four-Position Bail Tabs | Provided for feed-thru bushing insert mechanical clamp |
| Component | Specification |
| Terminal Type | Fully insulated, external clamp type, externally replaceable |
| Stud Material | Copper studs per ANSI C57.12.25 |
| Secondary Connector | 6-position 350KCMIL set-screw type |
Selection Guide
| Load Power (kW) | Recommended Capacity (kVA) |
| ≤ 12 | 15 |
| 12-20 | 25 |
| 20-30 | 37.5 |
| 30-40 | 50 |
| 40-60 | 75 |
| 60-80 | 100 |
| 80-133 | 167 |
For detailed technical drawings or customized solutions, please contact the Sline technical team. We will provide one-on-one engineer-led service throughout the process.
