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Henan Shenyu Power Equipment Co., Ltd.
 
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lightning arrester for electrification railway

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Title: lightning arrester for electrification railway 
Brand: shentai
Model: YH5WT/YH10WT
Unit price: Negotiable
MOQ: Negotiable
Quantity: Negotiable
Delivery date: Since the payment date Days delivery

Contact: Angela Zhu (Mr.)    
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Telephone:

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   lightning arrester for electrification railway 

 

brief introduction of    lightning arrester for electrification railway

 

   lightning arrester for electrification railway are important over-voltage protection device. They are widely used in electric power system due to their excellent nonlinear and high surge absorbing capability. And it is one of the most important equipments in electric power system. Whether its running status is good or not directly affects other equipments in sub stations.

 

Using the  lightning 

arrester to prevent the shunt capacitor from overvoltage is one of the most efficient and reliable measures, and in many cased it is a necessity.

 

 working principle of  lightning arrester for electrification railway

lightning arrester  is the most advanced voltage protect equipment nowadays in the whole world. 

Cause of the core parts are made of zinc oxide and many other metal oxide, comparing with traditional arresters, the volt-ampere characteristics of resistor disc have been improved much, meantime the through-current capacity have been improved too, thus the zinc oxide arrester brought fundamental change of arresters.

 

In normal working, the current through arrest is only several microamp, but when suffer overvoltage, the arresters’ nonlinearity volt-ampere characteristics will come into play, the current through arrester will increased to thousands ampere in a moment, the arrester will be in conducting state, discharge the overvoltage, and thus protected the power distribution equipment from damage.

 

 Application of     lightning arrester for electrification railway Zinc Oxide Arrester will protect the power equipment in power system from damage of atmospheric overvoltage and switching overvoltage

 

 

Working condition:

 

1. Environment temperature: -40--+40 degree

 

2. sea level elevation:<1000m

 

3. 48HZ<supply frequency<62HZ

 

4. Power frequency voltage should not be more than continuous running voltage

 

5. Max wind speed should be less than 35m/s

 

6. Earthquake intensity should be less than 7 degree

 

7. If used in contamination area, should be noted in advance.

 

Manufacturing standard

 

Chinese National Standard

 

Accord with Chinese national technical requirements GB 11032-2000 JB/T8952-2005, JB/T 10497-2005, DL/T815-2002

 

parameters of    lightning arrester for electrification railway

 

MOA tape

System Rated  Voltage

Rated  Voltage

Continuous working voltage

DC parameters voltage

 

1/10 Steep current impulse

residual volage 

8/20 Lightning current Impulse Max residual voltage

30/60 Switching current impulse residual voltage

2ms rectangular current impulse residual voltage

4/10 high current impulse residual voltage

KV(r.m.s)

No less than(KV)

No more than(KV)

A

KA

YH5WT-42/120

27.5

42

34.0

67

138

120

98

400

65

YH5WT-41/115

27.5

41

32.8

67

133

115

94

400

65

YH5WT-84/240

55.0

84

68.0

134

276

240

196

400

65

YH5WT-82/230

55.0

82

65.6

134

266

230

188

400

65

YH10WT-41/120

27.5

42

34.0

66

138

120

98

400

100

YH10WT-41/115

27.5

41

32.8

66

133

115

94

400

100

YH10WT-84/240

55.0

84

68.0

132

276

240

196

400

100

YH10WT-82/230

55.0

82

65.6

132

266

230

188

400

100

 

 

Model Introduction of the     lightning arrester for electrification railway

 

 

diagram of   lightning arrester for electrification railway

 

 

 

 

 

pictures of    lightning arrester for electrification railway 

 

 

 

 

 

contact informations: 

 

 


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