Qingdao Hengfengyou Electrical Engineering Co., Ltd.
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ONAN 50kva 100kva transformer 400kva 1500kva 2500kva transformer
Production Overview
1. A multilayer cylinder structure is used for all high voltage windings in order to improve the voltage
impulse distribution of winding.
2. For the capacity range of medium voltage windings is from 30kVA to 2000kVA, the cylinder type
or spiral structure is used to ensure the high mechanical strength, ampere lure distribution and
excellent short-circuits proof performance.
3. The securing structure is set in the transformer body, which is used for ensuring that no
displacement will occur during the transportation;meanwhile, the turnbuckles are mounted in
fasteners, which is for assuring that fasteners will not be loose during the long term operation.
4. Corrugated tanks are used in the transformer for replacing the conservator. The tank enclosure
and rim are completely sealed by welding or bolting up, which prolongs the service life of
transformer oil.
5. The transformer surface are painted with primer and finish coats after degreasing derusting, and
phosphorizing; which can meet the special operation requirements in metallurgic and
petrochemical industries, as well as, in moist and dirty places.
6. The press relief valves, signal thermometers, and gas relays are equipped in the oil tank of
hermetically sealed transformer in order to the standard requirements for safe operation. The
transformers are attractive and competitive due to the compact shape, excellent and design,
maintenance-free.
| Main Technical Parameters for 10KV level S9-M/S10-M/S11- M Series three-phase full-sealed non-excitaiton-tap-changing distribbution transformer | ||||||||||||
| Rated Power (kva) | High Voltage (kv) | H.V.Tap range | Low Voltage (kv) | Connection symbol | Short Circuit Impendence (%) | No-load loss(W) | On-load loss(W) | No load current (%) | ||||
| S9 | S10 | S11 | S9 | S10 | S11 | |||||||
| 30 | 6 6.3 10 10.5 11 | ±5% ±2x2.5% | 0.4 | Dyn11 Yyn0 | 4 | 130 | 110 | 100 | 600 | 600 | 600 | 2.1 |
| 50 | 170 | 150 | 130 | 870 | 870 | 870 | 2 | |||||
| 63 | 200 | 180 | 150 | 1040 | 1040 | 1040 | 1.9 | |||||
| 80 | 250 | 200 | 180 | 1250 | 1250 | 1250 | 1.8 | |||||
| 100 | 290 | 230 | 200 | 1500 | 1500 | 1500 | 1.6 | |||||
| 125 | 340 | 270 | 240 | 1800 | 1800 | 1800 | 1.5 | |||||
| 160 | 400 | 310 | 280 | 2200 | 2200 | 2200 | 1.4 | |||||
| 200 | 480 | 380 | 340 | 2600 | 2600 | 2600 | 1.2 | |||||
| 250 | 560 | 460 | 400 | 3050 | 3050 | 3050 | 1.2 | |||||
| 315 | 670 | 540 | 480 | 3650 | 3650 | 3650 | 1.1 | |||||
| 400 | 800 | 650 | 570 | 4300 | 4300 | 4300 | 1 | |||||
| 500 | 960 | 780 | 680 | 5150 | 5150 | 5150 | 1 | |||||
| 630 | 4.5 | 1200 | 920 | 810 | 6200 | 6200 | 6200 | 0.9 | ||||
| 800 | 1400 | 1120 | 980 | 7500 | 7500 | 7500 | 0.8 | |||||
| 1000 | 1700 | 1320 | 1150 | 10300 | 10300 | 10300 | 0.7 | |||||
| 1250 | 1950 | 1560 | 1360 | 12000 | 12000 | 12000 | 0.6 | |||||
| 1600 | 2400 | 1880 | 1640 | 14500 | 14500 | 14500 | 0.6 | |||||
| 2000 | 5 | 2830 | 2270 | 1940 | 17140 | 17140 | 17140 | 0.6 | ||||
| 2500 | 3350 | 2690 | 2300 | 20260 | 20260 | 20260 | 0.5 | |||||