Cast Resin Transformer
Cast Resin Transformer From LS IS
Metal Clad Switchgear
Standards
LS CAST RESIN Transformers confirm to the
requirements of IEC 60076-11 (2004). However we can also meet the requirements of the following standards, upon request.
- IEEE C57.12.01 (2005)
General requirement for dry-type distribution and power transformers - CSA Standard C9-02 (R2007)
Dry type transformers. - HD538.1,2,3(1995)
3 Phase Dry type distribution transformers. 50Hz from 100kVA to 2500kVA - BS 7806 (1995)
Dry type Power transformers - AS 2374 (1982)
Power transformers
Standards
| Rating | Specification | |||
|---|---|---|---|---|
| Installation place | Indoor(Enclosure needed for outdoor) |
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| Applicable standard | KS C 4311, IEC 60076-11, IEEE C57.12.01 |
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| Frequency | 60, 50 |
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| Insulation kind | F type, H type |
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| Coil temperature rise | 100K, 125K |
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| HV rated voltage(kV) | 33, 22, 10, 6 |
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| HV tap voltage(V) | 5 Taps (±2x2.5%) |
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| LV rated voltage | 400V |
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| Angular displacement | Dyn11 |
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| Impulse withstand voltage(kV) (HV/ LV) | 145 / - 170 / - | 95 / - 125 / - | 60 / - 75 / - | 40 / - 60 / - |
| Normal frequency withstand voltage(kV) (HV/ LV) | 70 / 3 | 50 / 3 | 28 / 3 | 20 / 3 |
| Rated capacity (kVA) | up to 3150 |
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| Enclosure | IP 2X, IP 3X, IP 4X |
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Specification
LS CAST RESIN Transformers are normally available with specification as follows:
- Rated voltage
HV COIL : up to 36kV
LV COIL : up to 600V - Standard Tapping range : ± 2.5%, ± 5%
- Power capacity
Single phase : 20 ~ 2,000kVA
Three phase : 50 ~ 15,000kVA - Frequency : 50Hz, 60Hz
- % Impedance voltage
IEC STD. : 4.0 ~ 8.0%
IEEE STD. : 5.75 ~ 8.0%
- Connections
HV COIL : Delta
LV COIL : Star with neutral point - Temperature class (According to IEC 60076-11)
HV COIL and LV COIL : F CLASS - Conductor
Aluminum (standard)
Copper (optional) - Noise Level (according to NEMA Std.)
Features
- Environmentally safe
- Moisture proof
- No partial discharge
- Low noise
- High overload capability
- High impulse strength
- Maintenance free
- Fire resistant