500kVA 35kv Dry Isolation Transformer for Low-Loss Low-Noise Transformer

Product DescriptionDry type transformer 1. IEC standard. 2. CE, ISO certificates. 3. IP20 and above grade. 4. High insulation and maintenance free 6kv 6.6kv 10kv 11kv 33kv 35kv dry type transformer with low loss Feature for dry type transformer and advantages. 1. Safe, reliable, no pollution, can operate directly in the load center 2. High mechanical strength, strong ability to withstand short circuit, low partial discharge, good thermal stability, high reliability, long use life; 3. Low no-load loss, high performance, low noise, efficient energy conservation; 4. High thermal performance, high operation capacity, forced air cooling can improve the operation of capacity. 5. Good moisture resistant ability, can operate in high humidity and other harsh environments 6. With features of environmental protection, flame retardant, explosion- proof and free of maintenance; 7. Small size, light weight;  Rated Power (kVA) High Voltage (kV) H.V. Tap Range Low Voltage (kV)Connection Symbol  Short-Circuit Impedance (%) No-Load Loss (W)  On-Load Loss (W)   No-Load Current  (%)Insulation Class Noise (dB) Weight (kg) Overall Dimension L*W*H  (mm) 50 20/22/24   ±5%  or   ±2*5%0.4  Yyn0    Dyn11 6 340 12402.4  F 2.4560  1080*660*830 100 20/22/24    ±5%  or   ±2*5%  0.4   Yyn0    Dyn11 6   540 20002.2    F 2.2 690 1160*760*900160   20/22/24   ±5%  or   ±2*5%  0.4    Yyn0    Dyn11   6  680  24701.8  F   1.8 8101190*760*950  200  20/22/24    ±5%  or   ±2*5%  0.4   Yyn0    Dyn11 6   740 2950 1.8  F 1.8 1030 1200*760*990 250  20/22/24    ±5%  or   ±2*5%  0.4   Yyn0    Dyn11  6 8503420  1.6  F 1.6 1280 1220*760*1160 315  20/22/24    ±5%  or   ±2*5% 0.4    Yyn0    Dyn11    6970  40901.6   F 1.6 1530 1250*760*1210 400  20/22/24    ±5%  or   ±2*5%  0.4   Yyn0    Dyn11 6   1150 4850 1.4  F 1.4 1660 1390*920*1470 500  20/22/24    ±5%  or   ±2*5%  0.4  Yyn0    Dyn11    6 1350 58001.4  F  1.4  2010 1420*920*1360 630  20/22/24    ±5%  or   ±2*5%  0.4   Yyn0    Dyn11  6 1530 68401.2   F 1.22390  1510*920*1460 800  20/22/24    ±5%  or   ±2*5% 0.4     Yyn0    Dyn11  61760  8270 1.2  F1.2  3060 1660*920*1510 1000  20/22/24    ±5%  or   ±2*5%  0.4  Yyn0    Dyn11    6 20709790  1.0  F 1.0 3410 1740*960*1660 1250  20/22/24    ±5%  or   ±2*5% 0.4     Yyn0    Dyn11 6   2390 11540 1.0  F 1.0    40101930*960*1760  1600 20/22/24    ±5%  or   ±2*5% 0.4     Yyn0    Dyn11  6 2790 13870 1.0 F    1.0 5030 2040*960*1960 2000  20/22/24    ±5%  or   ±2*5%  0.4   Yyn0    Dyn11  6 3240 16390 0.8  F 0.8 5980 2040*1255*2030 2500  20/22/24    ±5%  or   ±2*5% 0.4    Yyn0    Dyn11    6 3870 19380 0.8 F   0.86160  2060*1255*2200Detail displayCertificationsCertificates owned by shenda: 100MVA/220kv power transformer short circuit test report -issued by CESI Italy&CTQC China 120MVA/33KV oil EAF transformer 50MVA/69KV oil power transformer 10MVA/33kv dry-type transformer Type test report -issued by KEMA Netherlands 63MVA/110KV Power transformer short circuit test report -issued by CTQC China 12.5MVA/22KV Rectifier transformer routine test -issued by V-Check korea ISO 9001&ISO14001&OHSAS 18001 CE-POWER TRANSFORMER&FURNACE TRANSFORMER&DRY-TYPE TRANSFORMER&REACTOR Transformer CharacteristicsWinding .The winding must be especially protected - both against high electrical stress due to external over voltages and against mechanical overloads by short circuits. They are made of copper or aluminum. Low-voltage windings are made of strip or flat wire while high voltage windings are manufactured from round or profile wire. ("diamond-dotted paper") bonds the winding into a compact block while drying and increases the short-circuit capacity additionally. Magnetic Core lamination.The three-limb iron core is made of oblique cut Grain-oriented, seven-step silicon steel lamination insulated on both sides, guaranteeing low losses and low noise. These values are even improved by laser treatment. It is protected on the surface with a flash-proof varnish in order to prevent the sheet from corrosion and to reduce the noise. Oil tank.Whether during transport or operation -the tank must be absolutely tight under mechanical stress. We have vast constructional experience, the most modern calculation methods and high-quality welding work. Special attention is paid to corrosion protection. Pretreatment of the surface is processed by phosphating pickling, contributes to corrosion protection, just like multi-coating with preset drying times for each layer. On request, hot-dip galvanization provides for even better protection Test labTesting are conducted for every transformer before delivery.Tests are classified to be routine tests and type test. A - Routine tests: According to IEC 60076 standard , the following tests must be carried out for all units of the transformers a- Measurement of winding resistance . b- Measurement of voltage ratio and check of phase displacement. c- Measurement of short circuit impedance and load losses. d-Measurement of no-load losses and current . e-Dielectric routine