ZCW10-40.5
Adopting high-purity SF6 gas as insulation and arc-extinguishing medium, the ZCW10-40.5 combined switchgear applies mature self-energy arc extinguishing technology. It features excellent dielectric insulation performance and reliable short-circuit breaking capacity, capable of quickly isolating overload and short-circuit faults in 40.5kV power grids. The stable arc-quenching system ensures repeated full-capacity breaking operations without performance attenuation, guaranteeing long-term safe and stable power system operation.
Equipped with a high-precision spring operating mechanism, this 40.5kV SF6 switchgear delivers accurate, consistent closing and opening actions with ultra-low mechanical failure rate. The overall fully sealed structure adopts multi-layer anti-corrosion, waterproof, dust-proof and salt spray resistant treatment. It adapts to various complex outdoor working conditions, including high altitude, low temperature, coastal humid and corrosive environments, achieving all-weather stable operation with minimal daily maintenance.
Different from traditional separated high voltage switchgears, the integrated modular design of ZCW10-40.5 greatly reduces overall equipment volume and occupies less installation space. It effectively solves the problem of limited construction area for urban and suburban substations, saving engineering investment and installation costs. The streamlined structure simplifies on-site installation and commissioning procedures, shortening project construction cycles.
Featuring high safety coefficient, strong environmental adaptability, outstanding operational stability and long service life, the ZCW10-40.5 SF6 combined switchgear is ideal core equipment for 40.5kV power grid construction and renovation. We provide global customers with standardized products, customized technical solutions, complete certification documents and professional after-sales service to support various medium and high voltage power engineering projects.
Product Details
ZCW10-40.5L
Open air type assembledswitch gear
□Meaning of type
□ Introduce
□Z CW10-40.5L-type open-type combination of electrical appliances is the use of air as the outer insulation SF6 gas as the interrupter medium complete sets of electrical appliances.For three-phase AC72.5KV power transmission and distribution system control and protection can also be used to contact the circuit breaker and opening and closing capacitor group of occasions.Suitable for land tension city substation,enterprise substation,
mountain substation.
□ Characteristic of structure
□The breaker has the characteristics of small,outdoor type and with the console pot structure.It can match with CT35 spring operation mechanism.The spring operation mechanism associates with the main body,so the installation and debugging are convenient.Also it can be operated frequently and the mechanical life is not less than 10000 times.
□The breaker uses pneumatic arc-extinguishing chamber,so the breaking performance is excellent.The 40kA accumulative breaking times can reach to 12.
□The seal performance is reliable.The breaker uses imported sealed rubber insert.The dynamic seal uses structure of V shape grommet with spring pressure. The secondary terminal block is offered by the manufacturer as a set with the breaker to make sure that the annual leak rate of SF6<0.5%.
□The iron core of the inner current transformeris made of materials with the performance of crystallite(alloy)high conduction magnetic.So the accuracy class can reach up to 0.2 or0.2S.12 pieces of current transformers can be used inside as the clients'requirement.And it will not re-burn when switch zero load for 50kms
口 Technical data
|
N o . |
N a m e |
U n i t |
Technical standard |
Test condition or means |
|
|
1 |
Dynamic contact stroke |
mm |
95±2 |
Moasurement for dynamic contact stroke |
|
|
2 |
Clearance between contacts |
mm |
60土1.5 |
Measuremen forcerance betwen dynamic and staic arc cortacts |
|
|
3 |
smtosncronizunatonpdsa |
ms |
≤3 |
Moumrtorcowaca fanca batmea polmoftgmantcand atancrtet |
|
|
4 |
Smt-of snchonzatn btwon poa |
ms |
≤2 |
hoaumortorowarca dfono batwoemplomortnane and at acortact |
|
|
5 |
Main loop resistance |
μΩ |
≤120 |
DC volag fl measurementpowor-on when test |
|
|
6 |
Switch-on speed |
m/s |
3.2±0.2 |
Rated pressure measurement |
|
|
7 |
Switch-off soeed |
m/s |
3.4±0.2 |
Rated pressure measurement |
|
|
8 |
Switch-on cushioning stroke |
mm |
1095 |
Swtch-on state |
|
|
9 |
8t-anartkureomtndtro |
mm |
1~2 |
Switch-on state |
|
|
10 |
48.6KV 28kV |
Partlal dlscharge |
PC |
20 |
Use part measuring instrument,first measure for 1 min in outlet terminal of breaker on 48.6kV,then drop to 28KV and test again. |
|
PC |
10 |
||||
口Outline dimension
|
Rated operating voltage(V) |
DC:110,220 AC:220,380 |
|
Rated electromotor curent(A) |
5 |
|
Range of general working voltage |
85%-110%rated working voltage |
|
Energy storage time under rated working voltage(s) |
<15 |
□Outline dimension
口Order notice
□The type and the specification of the circuit breaker.
□Rated electric parameter(voltage,current,rated short-circuit breaking current and so on).
□Envlronmental condltlon(temperature,altitude,fllth level and so on).
□Oparating valtage and motor valtage of operation mechanism.
□Quantity,current ratio,class combination,secondary load of inner or outer current transformer.
□Name and quantity of the accessories and tools if required.(deal separated with breaker)
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