Arrester Components and Accessories

  • Zinc Oxide Varistor for Arrester - 副本
  • Zinc Oxide Varistor for Arrester - 副本
  • Zinc Oxide Varistor for Arrester - 副本
  • Zinc Oxide Varistor for Arrester - 副本
  • Zinc Oxide Varistor for Arrester - 副本
Zinc Oxide Varistor for Arrester - 副本Zinc Oxide Varistor for Arrester - 副本Zinc Oxide Varistor for Arrester - 副本Zinc Oxide Varistor for Arrester - 副本Zinc Oxide Varistor for Arrester - 副本

Zinc Oxide Varistor for Arrester - 副本

  • High square wave current withstand capacity
  • Excellent nonlinear V-A characteristic
  • Minimal Leakage Current (at Uc)
  • 100% routine test
  • Product description: WORTAI is a leading manufacturer of Zinc oxide varistor blocks, MO resistors, the Zinc oxide varistor also known as Metal oxide varistor, MOV, Metal oxide block etc, it is the core component of MV and
  • INQUIRY

Wortai Electric has manufactured the zinc oxide varistor for more than 20 years. The quality of our products is one-up in china, its residual voltage ratio is little and ageing performance is excellent. If you have any request, feel free to contact with our email: wortai@wortai.com, wechat and what's app ID: 13221182086 (Mobile Phone).

Principle

The zinc oxide varistor installed within arresters, it has excellent nonlinear volt-ampere characteristic. In normal operating voltage, it displays large resistance, its leakage current is only microampere grade. While over-voltage appear, it translates low resistance immediately, releases energy and limits over-voltage range, it resumes large resistanceimmediately after over-voltage disappear, and ensures electric power system running safely.





Technical Parameters

Type
Code

Dimension

Rated Voltage
Ur (kV)

Nominal discharge current
In (kA)

MCOV

Current Impulse Withstand

IEC
Line Discharge
Class

Dia.
(mm)

Ht.
(mm)

As per
IEC

As per
ANSI/IEEE

Rectangular
2ms (A)

High current
4/10μs (kA)

(kV)

(kV)

MOV3121

31

21

3

5.00

2.40

2.55

150

65

/

MOV3521

35

21

3

5.00

2.40

2.55

200

65

/

MOV3821

38

21

3

5.00

2.40

2.55

300

65

/

MOV5221R*

52

21

3

10.00

2.40

2.55

250

65

/

MOV4021

40

21

3

10.00

2.40

2.55

300

100

1

MOV4221

42

21

3

10.00

2.40

2.55

350

100

1

MOV4622

46

22

3

10.00

2.40

2.55

500

100

2

MOV4822

48

22

3

10.00

2.40

2.55

550

100

2

MOV5122

51

22

3

10.00

2.40

2.55

600

100

2

MOV5622

56

22

3

10.00

2.40

2.55

700

100

2

MOV6022

60

22

3

10.00

2.40

2.55

800

100

2

MOV7122R*

71

22

3

10.00

2.40

2.55

1000

100

3

MOV7122

71

22

3

10.00

2.40

2.55

1200

100

3

MOV8122

81

22

3

20.00

2.40

2.55

1500

100

4

MOV9522

95

22

3

20.00

2.40

2.55

2000

100

5

MOV11522R*

115

22

3

20.00

2.40

2.55

2200

100

5

MOV12822R*

128

22

3

20.00

2.40

2.55

2700

100

5

MOV12822

128

22

3

20.00

2.40

2.55

3000

100

5

* The MOV Block with a circular hole in the middle
Different rated voltages can be customized according to needs

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