300 Kva Three Phase Pad Mounted Oil-Immersed Distribution
Transformer 24.94Kv
summary
The three phase pad mounted transformer immerses the load switch
and fuse on the high voltage side of the transformer with the core
and windings of the transformer in the same oil tank, has the
advantages of advanced structure, reliable performance, energy
saving and consumption reduction, flexible use, strong
adaptability, and economical advantages.
Main data
| Transformer Type | Pad Mounted, Compartmental-Type |
| Transformer Feed Type | Loop Feed |
| Operation | Step-Down Operation |
| Phase | Three Phase |
| Capacity | 300 KVA |
| Vector Group | YnYn0 |
| Primary Voltage | 24940GrdY/14400 |
| Primary Voltage Class | 25 kV Class |
| Primary Phasor | Grounded Wye |
| Primary BIL | 125 KV |
| Secondary Voltage | 208Y/120 |
| Frequency | 60 Hz |
| Temperature Rise | 65°C |
| Insulation Rating | Class E Insulation - 120°C, 248°F |
| Cooling Class | KNAN; Self-Cooled |
| Impedance | 3.10-5.75% |
| Load Break Switch Rating | 200-Amp, 25 kV |
| Winding Material | Copper |
| Ambient Temperature Rating | 40°C |
| Ambient Operating Temperature Range | -40°C to +40°C (-50°F to +104°F) |
| Sound Level | 55 dBA |
| Dimensions | 61-W x 54-D x 69-H |
| Efficiency | 99.00% |
| Based on transformer operating at 50% of nameplate base kVA. | |
| Load Losses Based on 85°C Reference Temp. | |
| No Load Loss (in watts) | +/- 500W |
| Full Load Loss (in watts) at 100% | +/- 3,000W |
Feature
1) 3 Phase Pad-mounted Transformer has strong overload capacity. It
allows 2 times of overload for 2 hours. It can even be overloaded
1.6 times for 7 hours without affecting the service life of the 3
Phase Pad-mounted Transformer.
2) 3 Phase Pad-mounted Transformer adopts elbow plug connector. It
can be very convenient for the connection of high-voltage incoming
cables. Used as a load switch in emergencies. It can be plugged and
unplugged under power.
3) The 3 Phase Pad-mounted Transformer is protected by double
fuses. The plug-in fuse (BAY-o-net) is a dual sensitive fuse
(temperature, current) to protect the short-circuit fault that
occurs on the secondary side of the 3 Phase Pad-mounted
Transformer. The backup current-limiting protection fuse (ELSP)
protects the internal faults of the 3 Phase Pad-mounted Transformer
and is used to protect the high-voltage side.
4) The 3 Phase Pad-mounted Transformer can use Fr3 vegetable oil or
mineral oil. It can be selected according to its situation.
5) 3 Phase Pad-mounted Transformer adopts a fully enclosed
structure design. It places windings, iron cores, fuses, and
high-voltage load switches in the oil tank.
Technical drawings
Specification
| Rated Capacity | Loss(w) | Dimension(mm) | Weight(kg) |
| No-load Loss(W) | On-load Loss | W | D | H | Oil Weight (L) | Total Weight (KG) |
| 45kVA | 160 | 1000 | 1730 | 990 | 1270 | 416 | 950 |
| 75kVA | 180 | 1250 | 1730 | 990 | 1270 | 435 | 1020 |
| 150kVA | 280 | 2200 | 1730 | 1245 | 1270 | 473 | 1225 |
| 300kVA | 480 | 3650 | 1830 | 1295 | 1270 | 605 | 1655 |
| 500kVA | 680 | 5100 | 2260 | 1345 | 1270 | 720 | 2110 |
| 750kVA | 980 | 7500 | 2260 | 1448 | 1628 | 1022 | 2950 |
| 1000kVA | 1150 | 10300 | 2260 | 1500 | 1625 | 1325 | 3720 |
| 1500kVA | 1640 | 14500 | 2210 | 1470 | 2150 | 1552 | 4672 |
| 2000kVA | 2160 | 20645 | 2380 | 1600 | 2220 | 1855 | 5670 |
| 2500kVA | 2680 | 27786 | 3070 | 1650 | 2330 | 2006 | 6580 |
| 3000kVA | 3300 | 30300 | 3260 | 1850 | 2460 | 2336 | 7500 |
| 3750kVA | 4125 | 37875 | 4080 | 2060 | 2680 | 2650 | 8450 |
Production process
FAQ
1. Q: Can I have a sample order?
A: Yes, we welcome sample order to test and check quality.
2. Q: What is the lead time?
A: Mass production time 15-25 days.
3. Q: How long is the warranty?
A: 24 monthes from B/L. If there are any accessory problems,just
provide the photos of damaged accessory,then we will provide free
service. According to the number of products,we will provide easily
damaged accessories for free. we also can provide technical support
if you need.
4. Q: Is OEM/ODM available?
A: Yes,it is! We are manufacturer with our own R&D team, we can
customize products according to customer's drawing or requirements.
Customized services:
a. Customized color and special function.
b. Customized box.
c. Print customer's logo.
d. Your other ideas about product, we can help you design and put
them into production. The above customized services must be
confirmed before production.
5. Q: How to control the products quality?
A: Our company owns the core technology ,all kinds of products hold
CE certificate. We have professional engineers. Workers are
strictly required to make products according to the drawings. Each
process has technical instructors.The QC supervisors will regularly
inspect the production. We will do products performance tests
during production, and comprehensive quality tests when the
products is completed.
