2500KVA Three Phase Dry Type isolation Transformer NEMA3R
Feature
1. The energy consumption efficiency of the transformer reaches 99.26%, 8-15 percentage points higher than that of general products.
2. The enclosure meets the requirements of AWS certification (American Electrotechnical Association certification), Its load-bearing, heat dissipation, and rainproof performance meet NEMA3R standards (requirements for outdoor enclosure in North America).
3. HIGH SECURITY - VPI transformer has no combustible resin, halogen-free, non-combustion supporting, and flame retardant in use. It will not explode and release toxic gases, will not cause harm to the environment, other equipment, and the human body, and is insensitive to temperature, dust, and pollution.
4. The operation's partial discharge is small and will never crack. Its safety characteristics are especially suitable for places with high fire protection requirements and high population density.
Main data
| Product Name | 2500KVA Three Phase Dry Type isolation Transformer NEMA3R |
| Type | Dry type |
| Winding Material | Enameled copper wire or enameled aluminum wire |
| Capacity | 25KVA-2500KVA |
| Input Voltage | Customized |
| Output Voltage | Customized |
| Frequency | 50/60Hz |
| Connection Type | DYN11/YYN0 |
| Insulation Level | F/H |
| Enclosures Protection Level | NEMA3R |
| Pressure-tight Test | Primary to secondary2.5KV/min; |
| Primary to safety ground2.5KV/min; |
| Secondary to safety ground1.5KV/min |
| Insulation Resistance | Primary to secondary 2500V>100megohm; |
| Primary to safety ground 2500V>100megohm; |
| Secondary to safety ground 1500V>100megohm |
| Ground Resistance | 25A<100milliohm |
| Induction Withstand Voltage Test | 125Hz / 800V / 60s |
| Cooling Method | Natural or air cooling |
| Temperature Rise | ≤125K |
| Transformation Ratio | <3% |
| Air Carrying Current | <3% |
| Impedance Voltage | about 4.5% |
| Total Losses | 4% |
| Efficiency | 80%--99% |
| Operating Temperature | -15℃～40℃ (40℃, 90%R.H., 56days) |
| Storage Temperature | -25℃～100℃(40℃, 90%R.H., 56days) |
| Certificate | UL,CE,ISO |
Specification
| Rated capacity | High Voltage | Low | Connection Symbol | No-Load Loss | On-Load Loss | No Load Current | Weight | Short Circuit Impendence |
| (KVA) | (KV) | Voltage | (W) | (W) | (%) | (KG) | (%) |
| (KV) | | | | | |
| 10 | 6
6.3
10
10.5
11 | 0.4 | Dyn11
Yyn0 | 0.15 | 0.325 | 4.1 | 130 | 4 |
| 30 | 0.215 | 0.75 | 3.2 | 260 |
| 50 | 0.305 | 1.055 | 2.8 | 315 |
| 80 | 0.415 | 1.46 | 2.6 | 470 |
| 100 | 0.45 | 1.665 | 2.4 | 520 |
| 125 | 0.53 | 1.955 | 2.2 | 585 |
| 160 | 0.61 | 2.25 | 2.2 | 670 |
| 200 | 0.7 | 2.675 | 2 | 790 |
| 250 | 0.81 | 2.915 | 2 | 920 |
| 315 | 0.99 | 3.67 | 1.8 | 1085 |
| 400 | 1.1 | 4.22 | 1.8 | 1320 |
| 500 | 1.305 | 5.165 | 1.8 | 1520 |
| 630 | 1.46 | 6.31 | 1.6 | 1820 | 6 |
| 800 | 1.71 | 7.36 | 1.6 | 2105 |
| 1000 | 1.99 | 8.6 | 1.4 | 2550 |
| 1250 | 2.35 | 10.26 | 1.4 | 2900 |
| 1600 | 2.755 | 12.42 | 1.4 | 3490 |
| 2000 | 3.735 | 15.3 | 1.2 | 4220 |
| 2500 | 4.5 | 19.53 | 1.2 | 4955 |
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.
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