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Cast resin type dry power transformer

Rockwill dry type cast resin power transformers are in conformity with standard of IEC726,GB6450, GB/T10228-1997.with features low loss, compact and light weight low noise, damp-proof, anti-fouling, high mechanical strength, flam resisting, strong overload ability.

Cast resin type dry power transformer

The product of this latest series are resin cast transformers reinforced by glass fiber grid. Resin is fed by flow control pump and static control in order to prevent coils from alligator crack. The advanced cast technique ensures the resin mixture fully immerses into the space between turns and segments in order to ensure the dielectric strength and minimum partial discharge(≤5PC).

 

Environmental Conditions:

1. Altitude: ＜1000m indoor
2. Max .ambient: temperature +40℃
3.Max. daily: average temperature +30℃
4.Max .annual: average temperature +20℃
5.Min. temperature -5℃
6.Supply transformer operate under special conditions according to customer requirements.

 

Main Characteristics:

1.Low no-load loss and energy conservation

2.Low noise and environmental protection

3.Long service lifetime and safe and reliable performance

4.Reasonable and aesthetic structural design and exquisite manufacture craftsmanship

5.A full variety of accessories and appropriate protection measures

 

Standard of Products:

GB1094.1-1996, GB1094.2-1996, GB1094.3-2003, GB1094.5-2008, GB1094.7-2008,

GB/T6451-2008, JB/T10217-2000, etc

 

SC(B)10 series resin-cast power transformers are in conformity with standard of IEC726,GB6450, GB/T10228-1997.with features low loss, compact and light weight low noise, damp-proof, anti-fouling, high mechanical strength, flam resisting, strong overload ability and low partial discharge quanlity. They are applicable to power transformation and distribution, hotel, restaurant commercial building, chemical plants, rail station, airport and other heavy load center

 

Above mentioned parameters are only for reference, ROCKWILL is able to design products according to specific requirements from end users.

35KV dry type power transformer with off-load tap changer

Rated capacity (KVA) Rated Voltage(KV) Coupling group   Loss(W) No-load current(%) Noise (B)
HV Tap change LV Impedance voltage(%) N0-load Load
800 35 or 38.5 ±5% or ±2×2.5% 3.15,6 ,6.3,10 10.5 or 11 Yyn0 Dyn11 6 2220 8180 0.6 50
1000 2640 9480 52
1250 3090 11210
1600 3640 13440 0.5 53
2000 7 4180 15830 54
2500 4800 18970 56
3150 8 5960 21280 0.4
4000 6930 25570 55
5000 8270 30350 58
6300 9780 35460 0.3
8000 9 11200 40000
10000 12800 48250
12500 15560 56080 0.2 60
16000 19110 65980 61
20000 10 22670 74230 62

35kV Dry Type Power Transformer With Off-circuit Tap Changer

Nominal  Capacity（ kVA ） Voltage unit  combination LV Vector group No-load loss(W) Load loss(W) No-load Current(%) Short- circuit impedance
HV High Voltage Tap range F(120℃ ) H(120℃ )
800 35  36  37 38.5 ±2*2.5%or±5% 3.15 6 6.3 10 10.5 11 Yyn0 Yd11 Dyn11 2250 9400 10000 0.95 6
1000 2670 10900 11600 0.95
1250 3130 12900 13800 0.85
1600 3690 15400 16500 0.85
2000 4230 18200 19500 0.75 7
2500 4860 21800 23300 0.75
3150 6030 24500 26200 0.7 8
4000 7020 29400 31500 0.7
5000 8370 34900 37400 0.6
6300 9900 40800 43700 0.6
8000 Yyd11 Yd11 Dyn11 11300 46000 49300 0.5 9
10000 12900 55500 59400 0.5
12500 6 6.3 10 10.5 15700 64600 69100 0.4
16000 19300 76000 81300 0.4
20000 22900 85500 91500 0.35 10
25000 27100 101000 108000 0.35

35kV Dry Type Power Transformer With On Load Tap Changer

Nominal  Capacity（ kVA ） Voltage unit  combination LV Vector group No-load loss(W) Load loss(W) No-load Current(%) Short- circuit impedance
HV High Voltage Tap range F(120℃ ) H(120℃ )
2000 35  36  37 38.5 ±4*2.5% 3.15 6 6.3 10 10.5 11 Yd11 Dyn11 4500 19000 20300 0.75 7
2500 5220 22600 24200 0.75
3150 6300 25400 27200 0.7 8
4000 7380 30400 32600 0.7
5000 8730 36100 38600 0.6
6300 10300 41800 44700 0.6
8000 11800 47500 50800 0.5 9
10000 13500 57100 61200 0.5
12500 16400 66500 71100 0.4
16000 20200 78200 83700 0.4
20000 23800 88000 94200 0.35 10
25000 28100 10400 111000 0.35
Labels: dry type transformer cast resin transformer Cast resin type dry power transformer power transformer transformer manufacturer transformer factory dry power transformer factory dry power transformer manufacturer

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