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ZN28 Series 12KV 11KV indoor High-voltage Automatic Circuit Recloser for Sales

ZN28 Series 12KV 11KV indoor High-voltage Automatic Circuit Recloser for Sales

Resourceful Exporting experience
10 years exporting business records
Trustworthy and reliable business partner in distribution power business

Product Details

1. Profile of ZN28 Series 12KV 11kv Automatic Circuit Recloser 

ZN28-12 indoor high voltage vacuum circuit breaker is 3-phase device applied to the circuit of AC 50Hz and rated voltage 12KV, mainly installed in fixed switchgear cabinet in industrial and mineral enterprises, power plant and transformer substations for purpose of protection and control. 

CT19 spring operating mechanism or the CD17 electromagnetic operating mechanism installed in the breaker can be operated alone and installed in the fixed switchgear cabinet. 

It is suitable for frequently operated equipments.

2.Parameter list of ACR

Item

Unit

Data

20kA

25kA

31.5kA

40kA

Rated   voltage

kV

12

Rated   current

A

630

1000

1250

1250

1600

1250

1600

2000

2500

1600

2500

3150

Rated   short circuit breaking current

kA

20

25

31.5

40

Rate   short circuit breaking current(peak value)

kA

50

63

80

100

Rate   peak withstand current

kA

50

63

80

100

4S   rated short time withstand current

kV

20

25

31.5

40

Rated insulating level

Power frequency withstand voltage

kV

42 (Fracture 48)

Impulse withstand voltage

75 (Fracture 85)

Rated   sequence of operations


O-0.3s-CO-180s-CO

Mechanical   life

Time

1000

Breaking   times for rated short circuit breaking current

Time

30

20

Operating   device rates closing current(DC),

electromagnetic   operation device

A

71

128

Operating   device rates closing current(DC)

V

110/220

220

Operating device rates closing current(DC)

A

3.0/1.5

Clearance between open contacts

mm

11±1

Overtravel(contact spring reduction length)

mm

4±1

Three-phase, switch-on differ synchroneity

ms

≤2

Contact switch-on bounce time

ms

≤2

Average opening speed(6mm height)

m/s

1.2±0.3

Average closing speed

m/s

0.6±0.2

Opening time

Under max. Operation voltage

S

≤0.06

Under min. Operation voltage

≤0.08

Closing time

S

≤0.1

Each phase main loop resistance

μΩ

≤50

≤35

Moving   and fixed contact allowance wearing

cumulation thickness

mm

3

Oil damper cushioning stroke

mm

10










3.Environmental condition

Ambient temperature:-15°C~40°C 

Seismic intensity no greater than 8 degree;

Free from fire, severe contaminant, chemical corrosion and violent vibration. 

Elevation of installation site: ≤1000m

Daily average of relative humidity of atmosphere no greater than 95%, monthly average no more than 90%; 

4.Technical Diagram

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5. Vertified qualification

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6. Production line of XG company

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7. FAQ

1. How to order the products?

Answer; Send the inquiry with detail item description or your technical data. we can make same or the best recommendation.

2. About lead time and shipping time?

Answer : Generally 3-10 days in normal order, if special request, We can finish accordingly.

3Life span of our XG brand?

Answer: Generally we promise two years quality guarantee, some products will be extended longer time for life span.

8.Contact us

Email: emma@zgxgdn.com

XIGAO Electricenergy Group Co.,LTD.

Add.: No. 6, Weibei Industrial Park, Xi'an City, Shaanxi Pro., CN. 710600 

Phone: 0086 13319220197

WhatsApp: 008613319220197

Skype: sunnysunny12271

Wechat: 13319220197

Website:  www.zgxgdn.cn

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Products
Contact Us

Xigao Electricenergy Group Co.,Ltd

Add.: No.6, Weibei Industrial Park,

Xi'an City, Shaanxi Pro., CN. 710600

Phone: 0086 13319220197

Email: emma@zgxgdn.com

WhatsApp: 008613319220197

Skype: sunnysunny12271

Wechat: 13319220197

Website: www.zgxgdn.com

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