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Quick Details
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Place of Origin:
-
Zhejiang,China
-
Brand Name:
-
CHSH
-
Model Number:
-
ZN28
-
Colour:
-
Silver gray,Red
-
Size:
-
customized
-
Warranty:
-
1 Year
-
Standard:
-
GB1984-89
-
OEM:
-
Accept
-
Mechanical Life:
-
10000 Times
-
Material:
-
Iron,Red copper,Epoxy resin
Quick Details
-
Breaking Capacity:
-
31.5kA
-
Rated Voltage:
-
12
-
Rated Current:
-
630~3150
-
Place of Origin:
-
Zhejiang,China
-
Brand Name:
-
CHSH
-
Model Number:
-
ZN28
-
Colour:
-
Silver gray,Red
-
Size:
-
customized
-
Warranty:
-
1 Year
-
Standard:
-
GB1984-89
-
OEM:
-
Accept
-
Mechanical Life:
-
10000 Times
-
Material:
-
Iron,Red copper,Epoxy resin
Summary
ZN28-12 and ZN28A-12 indoor HV vacuum circuit breaker applies to power system of rated voltage 12kV, three-phase AC 50/60Hz. it used to control and protect electric apparatus in industry like mining, substation and so on. ZN28-12 is a unitary type (operation mechanism is installed inside the switchgear and combine with it as a whole); ZN28A-12 is a hanging-on type (the mechanism and switchgear are separately installed on cubicle or support frame, then connected
with link rod and drive shaft.)
As long as the VCB operates within the required mechanical parameter, it can work with many advantages such as strong breaking capability, effective arcextinction, long lifetime, reliable and safe operation as well as easy maintenance.
The product conforms to IEC62271-100, GB/T1984, JB3855 and DL/T403.
with link rod and drive shaft.)
As long as the VCB operates within the required mechanical parameter, it can work with many advantages such as strong breaking capability, effective arcextinction, long lifetime, reliable and safe operation as well as easy maintenance.
The product conforms to IEC62271-100, GB/T1984, JB3855 and DL/T403.
Product feature
1. The vacuum arcing chamber of this VCB is of middle sealed-in longitudinal magnetic field type. The main shaft, opening
spring and buffer are all installed on the framework. There are 6 pieces of insulator switch fixed with stable and moving
trestles , then the vacuum arcing chamber are installed between the stable and moving trestles. The main shaft connects
with moving conducting bar of vacuum arcing chamber through crutch arm of insulating bar. Two pieces of insulation bars
connect two ends of stable and moving trestles to form a whole so as to improve the rigidity.
2. When the stable and moving contact open by the performance of operation mechanism, the arc in vacuum occur between contact, then extinct when the current reach at zero. Due to the special contact structure, during the arcing period, there is longitudinal magnetic field between contact so that arc lies evenly on the surface of contact and maintain a low arc voltage; in Vacuum arc-extinction chamber, the medium intensity recover at high speed, as well as small arc power and electrocorrosion ratio after arc extinction, thus to improve the breaking capability on short-circuit current and electric life.
3. The VCB applies to rigorous occasions such as high altitude and frequent operation.
4. As long as the VCB accord to the mechanical characteristics, the client may select adaptable electromagnet or spring
operation mechanism according to special situation.
spring and buffer are all installed on the framework. There are 6 pieces of insulator switch fixed with stable and moving
trestles , then the vacuum arcing chamber are installed between the stable and moving trestles. The main shaft connects
with moving conducting bar of vacuum arcing chamber through crutch arm of insulating bar. Two pieces of insulation bars
connect two ends of stable and moving trestles to form a whole so as to improve the rigidity.
2. When the stable and moving contact open by the performance of operation mechanism, the arc in vacuum occur between contact, then extinct when the current reach at zero. Due to the special contact structure, during the arcing period, there is longitudinal magnetic field between contact so that arc lies evenly on the surface of contact and maintain a low arc voltage; in Vacuum arc-extinction chamber, the medium intensity recover at high speed, as well as small arc power and electrocorrosion ratio after arc extinction, thus to improve the breaking capability on short-circuit current and electric life.
3. The VCB applies to rigorous occasions such as high altitude and frequent operation.
4. As long as the VCB accord to the mechanical characteristics, the client may select adaptable electromagnet or spring
operation mechanism according to special situation.
|
item
|
value
|
|
Brand Name
|
CHSH
|
|
Model Number
|
ZN28
|
|
Breaking Capacity
|
31.5kA
|
|
Rated Voltage
|
12
|
|
Rated Current
|
630~3150
|
|
Colour
|
Silver gray,Red
|
|
Size
|
customized
|
|
Warranty
|
1 Year
|
|
Standard
|
GB1984-89
|
|
OEM
|
Accept
|
|
Mechanical Life
|
10000 Times
|
|
Material
|
Iron,Red copper,Epoxy resin
|
1. who are we?
We are based in Zhejiang, China, start from 2012,sell to Domestic Market(00.00%). There are total about 101-200 people in our office.
2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;
3.what can you buy from us?
Substation; Transformer, Switchgear, PV Combiner Box, PV Inverter
4. why should you buy from us not from other suppliers?
1. 12 year's Professional manufacturer of medium & high voltage power distribution equipment . 2. Excellent Supplier of The State Grid Cooperation of China 3. ODM OEM services 4. Strong research and development team , 5. Authoritative certificate
5. what services can we provide?
Accepted Delivery Terms: FOB,CFR,CIF,EXW,FCA,DDP,DDU,Express Delivery；
Accepted Payment Currency:USD,EUR,CNY;
Accepted Payment Type: T/T,L/C,PayPal,Western Union,Cash;
Language Spoken:English,Chinese,Russian
We are based in Zhejiang, China, start from 2012,sell to Domestic Market(00.00%). There are total about 101-200 people in our office.
2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;
3.what can you buy from us?
Substation; Transformer, Switchgear, PV Combiner Box, PV Inverter
4. why should you buy from us not from other suppliers?
1. 12 year's Professional manufacturer of medium & high voltage power distribution equipment . 2. Excellent Supplier of The State Grid Cooperation of China 3. ODM OEM services 4. Strong research and development team , 5. Authoritative certificate
5. what services can we provide?
Accepted Delivery Terms: FOB,CFR,CIF,EXW,FCA,DDP,DDU,Express Delivery；
Accepted Payment Currency:USD,EUR,CNY;
Accepted Payment Type: T/T,L/C,PayPal,Western Union,Cash;
Language Spoken:English,Chinese,Russian
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