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Product Description
Distribution transformer General:
S11-M. RL, Three Phase Distribution Transformer with three-dimensional wound core is a new type hi-tech and high energy-saving product. Compared with series S9, 80% of no-load current and 30-40% of no-load loss can be decreased, 8-13dB in noise level can be reduced. It is applicable for distribution, power supply and lighting in industrial, agricultural, mineral, petrochemical fields.
Normal service condition:
Elevation height less than 1000m
Environmental temperature
Max. Temperature +40 oC
Max. Daily average temperature: +30 oC
Max. Annual average temperature +20 oC
Min. Temperature -30 oC
Operation environment outdoor
Symmetry of multi-phase power source
Three-phase power sources shall be almost symmetrical.
Feature:
1. Three-dimensional wound core consists of three core limbs whose cross-section is close to circle. Magnetic circuit in three phase is totally symmetrical and identical, which shortens the yokes but makes factor of core limb bigger.
2. After annealing, internal stress can be removed thoroughly for three-dimensional wound core. There is no higher magnetic reluctance everywhere in its circuit, so no-load loss and energizing current can be decreased greatly. The test shows that more than 80% of no-load current and 30-40% of no-load loss can be decreased.
3. Only fewer joint caused by continuous wound core, there should no noise occurred due to the blocking inside the magnetic circuit of stacking core. In such way, 8-13dB in noise level can be reduced, which is almost in the state of noise silence.
4. Triangle tank is used for such transformer so it is smaller than the normal one. In a word, it is impact, small size with artistic appearance
Ordering Notes:
1. Rated capacity
2. Rated voltage (L. V. &H. V. )
3. Vector group
4. Impedance voltage
5. Tapping range
6. Phase number
7. Frequency
8. Cooling way
9. Protection grade
10. Special requirement
 
 
  Voltage combination
 
 
 
 
 
 
 
  Item
capacity (KVA)
  H.V. (KV)
  L.V. (KV)
  Tapping range (%£©
  Vector
group
No-load loss
(W) 
Load loss (W)
  No-load current
(%)
  Impedance  voltage (%)
 30
  6  6.3 10
  0.4
  +/-5
  Y£¬yn0 
90 
 600
 0.54
 
 50
 
 
 
 
 120
 870
 0.54
 4.0
 63
 
 
 
 
 140
 1040
 0.52
 
 80
 
 
 
 
 175
 1250
 0.50
 
 100
 
 
 
 
 200
 1500
 0.43
 
 125
 
 
 
 
 235
 1800
 0.40
 
 160
 
 
 
 
 280
 2200
 0.38
 
200
 
 
 
 
 335
 2600
 0.35
 
250
 
 
 
 
 390
 3050
 0.32
 
 315
 
 
 
 
 465
 3650
 0.29
 
 400
 
 
 
 
 560
 4300
 0.27
 
 500
 
 
 
 
 670
 5150
 0.27
 
 630
 
 
 
 
 840
 6200
 0.24
 4.5
 800
 
 
 
 
 1000
 7500
 0.22
 
 1000
 
 
 
 
 1200
 10300
 0.22
 
 1250
 
 
 
 
 1400
 12000
 0.22
 
 1600
 
 
 
 
 1800
 16700
 0.20