
Step Down Power Transformer
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step down power transformer Description
Power transformers are electrical devices used to transmit electrical power from one circuit to another without changing the frequency. They operate based on the principle of electromagnetic induction and are used to step up or step down voltage in distribution networks. These transformers play a crucial role in transmitting electrical power between generators and primary distribution circuits. Because they have no rotating or moving parts, power transformers are considered static devices and work within an alternating current (AC) electrical system.
We ensure that each of our delivered units undergoes rigorous full acceptance testing. We provide a comprehensive service package, including consulting, quoting, manufacturing, installation, commissioning, training, and after-sales services. Our products are now operating in more than 50 countries worldwide. We strive to be your most reliable supplier and the best partner in business!
76MVA step down power transformer specifications and data
Rated Capacity (KVA) |
Junction group labe |
Voltage combination(KV) | No-load current (%) |
Load loss (W) |
No-load loss (W) |
Short circuit impedance (%) |
||
(H.V.) | Tap range(%) | (L.V.) | ||||||
30 | Dyn11 Yyn0 |
10 6.3 6 |
±5 ±2×2.5% |
0.4 | 1.5 | 630/600 | 80 | 4.0 |
50 | 1.3 | 910/870 | 100 | |||||
63 | 1.2 | 1090/1040 | 110 | |||||
80 | 1.2 | 1310/1250 | 130 | |||||
100 | 1.1 | 1580/1500 | 150 | |||||
125 | 1.1 | 1890/1800 | 170 | |||||
160 | 1.0 | 2310/2200 | 200 | |||||
200 | 1.0 | 2730/2600 | 240 | |||||
250 | 0.9 | 3200/3050 | 290 | |||||
315 | 0.9 | 3830/3650 | 340 | |||||
400 | 0.8 | 4520/4300 | 410 | |||||
500 | 0.8 | 5410/5150 | 480 | |||||
630 | 0.6 | 6200 | 570 | 4.5 | ||||
800 | 0.6 | 7500 | 700 | |||||
1000 | 0.6 | 10300 | 830 | |||||
1250 | 0.5 | 12000 | 970 | |||||
1600 | 0.5 | 14500 | 1170 |
Power Voltage Transformer
three phase step down Power Transformer Features
- The core of the three-phase power transformer is made from imported high-quality cold-rolled silicon steel sheets, which significantly reduces no-load loss and no-load current. The core is bound to ensure its tightness and reduce noise.
- The high and low voltage windings are made of oxygen-free copper. For transformers of 500 kVA and below, the low-voltage windings use a double-layer cylindrical structure, while the high-voltage windings use a multi-layer cylindrical structure.
- The transformer connection group employs Dyn11 to reduce the influence of harmonics on the power grid and improve power supply quality.
- The transformer features a fully sealed structure, which extends its service life, eliminates the need for hanging cores, and is maintenance-free.
- The measured noise level is below the standard.
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Why Choose gNEE step down power transformer?
GNEE Electrical Group Co., Ltd. is a technology-based enterprise specializing in the research and development, production, sales and service of dry-type transformers, power transformers, high and low voltage switchgear and related products. Our factory can provide a full range of distribution transformers.
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