Product Description
High pressure sulfur hexafluoride circuit breaker
LW16-40.5 type self-energizing high-voltage Ac sulfur hexafluoride circuit breaker is an outdoor three.phase high voltage AC equipment, suitable for the Ac 50Hz and the maximum voltage of40.5kV in the power gridwhere the altitude does not exceed 3000m, the ambient temperature is not lower than -30'c, and the pollutionlevelis not higher than the leveliv, Suitable for power plants, substations, industrial and mining enterprises high voltage transmission line controland protection, can also be used as a contact circuit breaker.
Main feature
LW16-40.5 self-energizing high-voltage AC sulfur hexafluoride circuit breaker adopts advanced self-.energizing arc extinguishing technology, equipped with new spring operating mechanism, which has thecharacteristics of long electrical life, small operation work, high electrical and mechanical reliability, andmoderate price.
* High rated technical parameters: rated current 2500A, rated short circuit breaking current 31.5kA, suitableforlarge capacity powergrid.
eHighreliabilityofelectricalappliances:(1) Electrical life of 31.5kAx21 (25kAx31) times, can meet the regulrements of running 25 years withoutreplacing the arc extinguishing chamber parts,(2) Opening and closing capacitor bank current 630A(44193kVAr)without reianition, suitable for cable current 50A without re-breakdown, suitable for capacitive load andinductiveload conditions.
(3)The externalinsulation abilityis strong, suitable for altitude 3000m orIV class dirty areas.
Highreliabilityofoperating mechanism:
(1) The mechanical life is divided into 10,000 times without changing parts, which can meet the requirementsofcontinuousoperationand minimalmaintenance ofusers.(2) The number of new spring operating mechanism parts is small, the whole high-strength cast aluminumframe is used, the opening spring and the buffer are centrally arranged, the structure is compact, the operation isreliable,the noiseissmall, the maintenanceiseasy, andit is suitableforfrequentoperation,(3) The main secondary electrical components are selected the most advanced and reliable corresponding products at home and abroad.
All exposed parts are made of stainless steel material or hot dip galvanized surface, high corrosionresistance..Reliable sealing structureensures thatthe annualleakage rate ofthe productis < 0.5%.eThe circuit breakercan be attached to the transformer orexternal:Each phase of the circuit breaker can be installed with 4 internal current transformers, The core ofthe internalcurrent transformeris made of microcrystalline alloy and high permeability magnetic material,and the current is 200A or above.
Main parameters
| Name |
Unit |
Data |
| Rated voltage |
Kv |
40.5 |
| Rated frequency |
Hz |
50 |
| Rated short circuit breaking current |
Ka |
1600KA 2000KA |
| Rated short time withstand current |
KA |
53KA |
| Rated short circuit duration |
KA |
25 |
| Rated operating sequence |
KA |
63 |
Detailed Photos
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