Hv Vacuum Circuit Breaker for Drawable Type

• Customization: Available
• Breaking Capacity: High Voltage Circuit Breakers
• Operation: Electric Type
• Model NO.: ZN85
• Speed: Normal Type Circuit Breaker
• Arc-extinguishing Medium: Vacuum
• Installation: Insert
• Structure: Vcb
• Poles Number: 3
• Type: Circuit Breaker
• Function: Vacuum Circuit Breaker
• Certification: CB
• Transport Package: Wooden Package
• Specification: 0.036
• Trademark: CNHK
• Origin: China
• HS Code: 8535210000
• Production Capacity: 1000

Product Description

ZN85-40.5 ( 40.5kV)  Vacuum Circuit Breaker, Indoor Type

General

1.1Ratings: Rated voltage 40.5kV, Rated current up to 2000A, AC50HZ 
1.2 Application: for the control and protection of substation and equipments; making and breaking short-circuit current under various operating status of electric network.  
1.3 Standard: IEC62271-100
2. Type and Interpretation:
Z  N  85 -40.5 /  T -  
                           
T: Operating mechanism code: Spring operating mechanism;
40.5: Rated voltage(kA)
85: Design code
N: Indoor
Z: Vacuum circuit breaker
 
3. Working Condition
3.1 Ambient air temperature: -15ºC~ +40ºC
3.2 Altitude: ≤1000m
3.3 No operating in such places as subject to dust, smog, corrosive/flammable gas, vapor and salt pollution.
3.4 Relative humidity: Daily average  95%
Monthly average   90%
3.5 Water vapor pressure: Daily average   
Monthly average  1.8kPa
3.6 The external shocking and earthquake could be neglected.
3.7 The amplitude of electromagnetic interference in the secondary system 1.6kV
Note: 1.Customized products are available on your requirements.
 
4. Main Technical Parameter

Item		Unit	Data
Rated voltage		kV	40.5
Rated current		A	630 ,1250,1600,2000
Rated frequency		Hz	50
Rated insulation level	1min power frequency withstand voltage(Vacuum open contacts)	kV	95 between poles, to earth/110(virtual value)
	Rated lightning impulse withstand voltage(Vacuum open contacts)		185 between poles, to earth/215(Peak value)
Rated short-time withstand current			20,25, 31.5
Rated withstand current (peak)			50,63,80
Breaking time		mS	80
Rated short-circuit breaking current		kA	20,25, 31.5
Rated short-circuit making current(peak)			50,63,80
Rated duration time of short-circuit		S	4
Rated operating sequence			O+t-CO-t'-CO*, O+0.3s-CO-180s-CO
Mechanical life(grade M2)		times	M2 Class (10000times)
Breaking times of rated short-circuit making current		times	20
Rated unit capacitor bank breaking current		A	630
Rated back to back capacitor bank breaking current			400
Rated operating voltage		V	-110/ 110, -220/ 220

 
5. Overall and Installation Dimension
5.1 Overall and installation dimension of fixed type circuit breaker

parameters

Total length(mm)	Distance of poles L1(mm)
1689	400
1788	472

 
 
6.Ordering Information
Please indicate the following items when order:
6.1 Type, name and quantity
6.2 Rated voltage , rated current and rated short-circuit breaking current.
6.3 Rated voltage of auxiliary circuit
6.4 Name and quantity of spare parts.
Note: Customized products are available per your requirements.