• sns01
  • sns03
  • sns02
  • eva@ghorit.com
  • 0086-15157778811
  • 0086-(0)577-55771555,0086-(0)577-55771572

ZW7-40.5 Series Outdoor High Voltage Vacuum Circuit Breaker (Recloser)

Short Description:


Product Detail

Product Tags

ZW7-40.5 outdoor HV vacuum circuit breaker is a 3-phase AC 50Hz 40.5kV outdoor switch equipment.

♦ Installation way: foundation installation;

♦ Operating mechanism: spring operating mechanism and electromagnetic operating mechanism;

♦ Pole material: silicone rubber, ceramic;

♦ Application: outdoor 33kV substation, power plant.

♦ Current transformer: in-buit installation, external installation.

 

Product Standards

♦ IEC62271-100 High Voltage Switchgear and Controlgear Part 100: AC Circuit-breakers

♦ GB1984 High Voltage AC Circuit-breakers

♦ GB/T11022 Common Specifications for High-voltage Switchgear and Controlgear Standards

♦ JB/T 3855 High Voltage AC Vacuum Circuit-breakers

♦ DL/T402 Specification of High-voltage AC Circuit-breakers

 

Environmental Conditions

♦ Ambient temperature: -40°C~+40°C;

♦ Altitude: <1000m;

♦ Maximum wind speed is 10km/h, minimum wind speed for the rated level (132/230kv) is 3.2km/h;

♦ Earthquake intensity: <8 level;

♦ Minimum nominal creepage distance: 31mm/kV;

♦ Air pollution degree: Class IV.

 

Main Technical Parameters

No

Item

Unit

Value

1 Rated voltage

kV

40.5

e Ratedinsulationlevel 1 min power frequencyDry test (fracture, inter-phase, to earth)Wet test (to earth, external insulation)

kV

95

85

Lightning impulse withstand voltage(peak)

185

3 Rated current

A

1250, 1600, 2000,

2500

4 Rated short circuit breaking current

kA

20, 25, 31.5

 

No

Item

Unit

Value

5 Rated short circuit making current (peak)

kA

50, 63, 80

6 Rated peak withstand current

kA

50, 63, 80

7 Rated short time withstand current

kA

20, 25, 31.5

8 Rated operating sequence

O-0.3S-CO-180S-CO

9 Rated short circuit breaking current breaking number

times

20

10 Rated short circuit duration s

4

11 Breaking time s

≤0.09

12 Mechanical life

times

10000

13 Newly manufactured vacuum interrupter

Ps

≤1.33×10-3

Vacuum interrupter during 20-year storage time

<6.6×10-2

14 Circuit breaker net weight

kg

800

15 Clearance between open contacts

mm

22±2

16 Contact travel

mm

4±1

17 Average opening speed

m/s

1.4-1.7

18 Average closing speed

m/s

0.4-0.7

19 Contact closing bounce time

ms

≤3

20 Inter-phase opening and closing synchronism

ms

≤2

21 Closing time

ms

50≤t≤200

22 Opening time

ms

30≤t≤60

23 Each phase main circuit DC resistance (not includeCT internal resistance)

μΩ

≤100

24 Dynamic and fixed contact cumulative thickness allowed to wear

mm

3

25

Rated contact pressure

N

2500±200

General Structure Drawing and Installation Size (unit: mm)

Side-mechanism type

q1

Mid-mechanism type

q2


  • Previous:
  • Next: