Ul Listed 75kva Three Phase Dry Type Low Voltage Multi-Tap Isolation Transformer 208v 240v 480v Doe Efficiency
| Brand Name: | WINLEY |
| Model Number: | SG-75KVA |
| MOQ: | 1unit |
| Price: | $500~$60000/Unit |
| Packaging Details: | Plywood case |
| Payment Terms: | T/T |
UL listed three phase dry type transformer
,low voltage multi-tap isolation transformer
,DOE efficiency three phase transformer
Ul Listed 75kva Three Phase Dry Type Low Voltage Multi-Tap Isolation Transformer 208v 240v 480v Doe Efficiency
WINLEY's multi-tap dry-type transformer has multiple taps on the primary or secondary side. Customers can adjust the voltage as needed to suit different application scenarios. This transformer is designed to meet diverse voltage requirements and improve the flexibility and efficiency of the power supply system.
Advantage
- Dynamic compensation: Maintain output voltage stability by adjusting tap positions during voltage fluctuations in the power grid
- Accurate matching: providing adaptive voltage for devices with different voltage requirements
- Adapt to diverse scenarios: support complex working conditions with seasonal load changes
- Reactive power control: By adjusting the voltage amplitude, it indirectly affects the distribution of reactive power in the power grid and optimizes the system power factor
Production process
The taps (tap joints) of a multi-tap transformer are multiple voltage access points set on the winding. By switching the tap position, the transformer ratio is changed, thereby achieving flexible voltage adjustment.
![]()
High magnetic permeability silicon steel sheets conduct magnetic fields faster, reducing energy loss by 30%! Laminated insulation design blocks ineffective heat generation, achieving efficiency exceeding 95%.
![]()
Specification
| Transformer Type | Isolation Transformer |
| Transformer Configuration | Dry Type |
| Phase | Three Phase |
| Frequency | 60 Hz |
| Primary Voltage | 208Y/120V, 240Y/139V, 480V/Y/277V |
| Primary Connection | WYE |
| Capacity | 75 KVA |
| Secondary Voltage | 400Y/231V AC |
| Secondary Connection | Wye-Neutral |
| Winding Material | Aluminum |
| Cooling | Air/Dry |
| Insulation | 220°C |
| Temperature Rise | 150°C |
| Enclosure Material | NEMA 3R |
| Dimensions | 24.50” W x 25.0” H x 19.25” D |
| Weight | 405 lbs |
Technical drawings
![]()
Specification
| Model (kva) |
Primary Voltage | Secondary Voltage | Coupling group tab | Shape dimension | Mounting dimension | K*J | The box dimension | |||||
| Bmax | Dmax±5 | Emax | A | C±5 | Bmax | Dmax±5 | Emax | |||||
| SG-10KVA | 660 400 380 200 |
380 220 110 36 |
Yyn0 Y/d D/y D/d |
360 | 180 | 305 | 215 | 140 | 10*20 | 450 | 360 | 480 |
| SG-15KVA | 360 | 200 | 335 | 215 | 155 | 10*20 | 450 | 360 | 480 | |||
| SG-20KVA | 420 | 210 | 350 | 250 | 170 | 10*20 | 490 | 400 | 540 | |||
| SG-30KVA | 420 | 230 | 380 | 250 | 190 | 10*20 | 490 | 400 | 540 | |||
| SG-50KVA | 680 | 350 | 550 | 420 | 220 | 10*20 | 800 | 510 | 840 | |||
| SG-80KVA | 750 | 400 | 620 | 480 | 250 | 10*20 | 850 | 510 | 840 | |||
| SG-100KVA | 780 | 420 | 650 | 500 | 250 | 10*20 | 900 | 550 | 890 | |||
| SG-300KVA | 180 | 95 | 185 | 100 | 75 | 6*14 | ||||||
| SG-500KVA | 180 | 95 | 185 | 100 | 75 | 6*14 | ||||||
| SG-1000KVA | 180 | 110 | 185 | 100 | 90 | 6*14 | ||||||
| SG-2000KVA | 230 | 125 | 205 | 130 | 100 | 9*16 | ||||||
| SG-3000KVA | 240 | 145 | 215 | 130 | 120 | 9*16 | ||||||
| SG-4000KVA | 240 | 155 | 235 | 130 | 130 | 9*16 | ||||||
| SG-5000KVA | 320 | 160 | 255 | 180 | 115 | 10*20 | 400 | 330 | 480 | |||
| SG-6000KVA | 300 | 165 | 280 | 180 | 140 | 10*20 | 400 | 330 | 480 | |||
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: Sample time 3-7 days, we usually ship by DHL, UPS, FedEx,etc. Mass production time 7-25 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(MOQ:≥10pcs).
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.