1000kva Three Phase Pad Mounted Transformer Step-Down 12470v To 480y/277
Three phase pad mounted transformer is designed to use in underground distribution systems, Their sealedhigh-vollage and low-vollage safely compartmenls ensure their safe operation and reduce the risk of accidenls, making themideally suited for use in residential applicalions, tourist sites, hotels and other buildings. Pad mounted ransformers are placedinside a cabinet with doors and locks, usually located outdoors.
Main data
Transformer Type | Pad Mounted, Compartmental-Type |
Operation | Step-Down Operation (Not Approved for Step-Up) |
Phase | Three Phase |
Capacity | 1 MVA (1000 KVA) |
Vector Group | DYN1 |
Primary Voltage | 12470V |
Primary Voltage Class | 15 kV Class |
Primary Phasor | Delta |
Primary BIL | 95 KV |
Secondary Voltage | 480Y/277 |
Secondary BIL | 30 KV |
Frequency | 60 Hz |
Temperature Rise | 65°C |
Insulation Rating | Class E Insulation - 120°C, 248°F |
Cooling Class | KNAN; Self-Cooled |
Liquid Level Indicator | Analog Dial Gauge |
Temperature Indicator | Analog Dial Gauge |
Pressure/Vacuum Indicator | Analog Dial Gauge |
Winding Material | Copper |
Ambient Temperature Rating | 40°C |
Ambient Operating Temperature Range | -40°C to +40°C (-50°F to +104°F) |
Sound Level | 58 dBA |
Elevation (Altitude) | 3300ft (1000 meters) Above Sea Level |
Core Material | Grain Oriented Steel |
Enclosure Rating | NEMA 3R Weatherproof Wiring Cabinet, Sealed Tank |
Dimensions* | 73-W x 69-D x 73-H |
Ratings | Meets/Exceeds DOE 2016 Efficiency Ratings |
Efficiency % | 99.20% |
No Load Loss (in watts) | +/- 1,300W |
Full Load Loss (in watts) at 100% | +/- 8,500W |
Standard Features
• 60 Hz operation.
• 65°C average winding rise.
• Radial & loop feed arrangements.
• Dead and live front type of HV terminals.
• HV BIL 45 – 150 kV (Dead Front) 200 kV (Live Front).
• LV BIL 30 – 60 kV.
• Three-point latching of low-voltage door.
• High-voltage door, which can be opened only after
the low-voltage door is opened.
• Rigid steel partition.
• Transformer tank welded from cover to base.
• Permanent nameplate.
• One-inch NPT pipe cap filling provision.
• ANSI tank ground pads.
• One-inch drain valve and sampler.
• Automatic pressure-relief valve (35 SCFM).
• Tap changer with (2) 2.5% full capacity taps above
and below nominal.
• One 10”x18” (or 14”x25”) hand hole in transformer
tank cover.
• Painted olive-green color (Munsell 7GY 3.29/1.5).
• Designed, manufactured and tested in accordance
with the latest ANSI standards
Technical drawings
Specification
Tachnical Data for Three Phase Pad Mounted Transformer | |||||||
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.