Payment & Shipping Terms:
|Core:||Silicon Steel Sheet||Cooling:||AN Or Customized|
|Capacity:||30KVA Or Customized||Rated H. V.:||6.6 Kv Or Customized|
|Rated L. V.:||0.433kv Or Customized||Impedance:||4% Or Customized|
6.6 kV - 30kVA Cast Resin Dry Type Transformer , Three Phases , Two Winding , Power Distribution
1. Stable electrical performance:
The product combined with load characteristics and grid voltage fluctuation, atmospheric overvoltage situation, according to the rectifier transformer load conditions determine reasonable and reliable insulation level and insulation model, confiscated products to ensure reliable and stable electrical performance. Product environmental safety factor ≥1.67.
2. high degree of dynamic stability:
The product winding has high mechanical strength, has a strong anti-burst capability to meet the harsh load environment. In the design, manufacturing process to better eliminate the transformer magnetic flux leakage caused by the abnormal transport or instability may be the source of instability. With high dynamic stability, high resistance, it has the capacity of the power transformer impedance of 30% higher, effective protection of rectifier components.
3. good thermal stability:
Advanced product design, strict control of the product hot spots and the hottest temperature rise, and leave sufficient temperature margin, if necessary, can be added in the coil axial oil path, according to the coil Load loss value of the cooling method and reasonable distribution of oil flow to achieve cooling effect, the main temperature indicators are at least 5 ºC lower than the national standard. Coil, copper wire used lead, current density selection is lower.
4. strong overload capacity:
the product has strong overload capacity and over-voltage capability, rated load conditions in the long-term safe operation, over-voltage conditions in 110% of the long-term safe operation under full load (ambient temperature 40 ºC); Transformer and motor connected terminals can withstand 1.5 times the rated current, duration 5S. Product design, manufacturing fully consider the load characteristics, from the temperature rise, insulation properties and accessories to meet all aspects of the choice of overload requirements.
5. superior performance indicators:
No-load current design, manufacturing value is lower than the same capacity transformers based on the provisions of the full user economy and reliability.
6. energy-saving effect is obvious, low noise (<65dB).
Cast Resin Dry Type Transformer, Low Noise, Low Loss and Low Partial Discharge.
|I Basic Information|
|1||Rated Voltage ratio||kV||6.6 kV / 0.433 kV|
|1.02||Applicable Standards||IEC 60076|
|1.04||Country of Origin||China|
|II Electric Performance|
|2.06||Insullation Class||Class H|
|2.07||Temperature Rise (@40℃ ambient temperature)||K||125K|
|2.14||Load Loss (@120℃)||W||710|
|2.15||Local Partial discharge||pC||<10PC|
|2.16||Impulse Withstand Voltage (HV/LV)||kV||75/0|
|2.17||Power Frequency Withstand Voltage
|2.18||Rated Duration of Short Circuit||s||2|
|III Materials & Accessories|
|3.01||Core Materials||Silicon Steel Sheet|
|3.02||Winding Materials||Copper conductor/foil|
|3.03||Insulation methods||HV vacuum cast / LV impregnant|
|3.04||Main Insulation Materials||Epoxy Resin|
|3.06||Sensor for Temperature Alarm and Trip||pcs||Yes, contact provided|
All cable entries to the LV pole mounted box shall be from below and cable terminals shall be provided with lugs appropriate to the cable specified, bolts, nuts, plain washers and locknuts. These terminals shall be located within 150mm of the cable boxes or gland plates and approved copper riser connections shall be provided between the terminals and the associated fuse or circuit breaker.
The armouring of all cables shall be earthed to the main earth busbar together with the bare copper earth conductor specified with that cable.
The supply end connections to equipment shall be at the top and load end connections at the bottom.
All conductors terminating on equipment with screwed terminals shall be fitted with lugs. The lugs shall be soldered or crimped to the end of the conductor with the correct amount of insulation removed from the end to fit into the lug. Strands may not be cut from the end of the conductor.
Connections to circuit breakers or isolators shall be made by one of the following methods:
A ferrule of the correct size
Soldering the end of the conductor, or
Winding a conductor strand tightly around the end to totally cover the end.
The colour of the conductors of all 400V circuits shall correspond to the colour of the supply phase for that circuit. Neutral conductors shall be black and grounding wire shall be Yellow-green combination. All other conductors in the cubicle for control circuits, etc., shall be coded in colours other than those specified above.
The devised colour codes shall be shown on a wiring diagram. Coloured PVC or other tape will not be acceptable for colour coding.
The supplier shall submit with the bids the detailed drawing of the LV distribution box
GB/T10228 , GB1094.11 , IEC60076-11 , DIN42523
Contact Person: Sandy