5KA Gapless Composite Polymer Surge Arrester
Description
The metal-oxide arrester is the most advanced over-voltage protector in the word. They protects the electrical equipment in AC power systems against being damaged by atmospheric over-voltage and operational over-voltage. This is due to the incorporation of a zinc oxide arrester as the core resistor disc. This allows an improvement in the volt-ampere characteristics of the resistor disc and an increase in through-current capability in over-voltage situations, which is a drastic improvement when compared to conventional silicon carbide arresters. Under normal operating voltage, the current through the arrester is only one micro-ampere degree. When the arrester experiences an over-voltage situation, the excellent non linear characteristics will increase the current through the arrester several thousand times. The arrester is in the conducting state and will release the over-voltage energy to earth and thereby protecting power transmission equipment against the effects of over-voltage.
Specification
|
Model Number
|
MOA Rated voltage (KVrms)
|
MCOV KV(rms)
|
Current impulse Residual Voltage
|
2ms Rectangular current impulse withstand A(crest)
|
4/10μs high current impulse withstand KA(crest)
|
||
|
1/4μs Lightning current impulse KV(crest)
|
8/20μs Lightning current impulse KV(crest)
|
30/60μs Switching current impulse KV(crest)
|
|||||
|
YH5W-3
|
3
|
2.55
|
11.3
|
9
|
8.9
|
150
|
65
|
|
YH5W-6
|
6
|
5.1
|
22.6
|
18
|
16.8
|
150
|
65
|
|
YH5W-9
|
9
|
7.65
|
33.7
|
27
|
23.8
|
150
|
65
|
|
YH5W-10
|
10
|
8.4
|
36
|
30
|
23
|
150
|
65
|
|
YH5W-11
|
11
|
9.4
|
40
|
33
|
30
|
150
|
65
|
|
YH5W-12
|
12
|
10.2
|
42.2
|
36
|
27
|
150
|
65
|
|
YH5W-15
|
15
|
12.7
|
51
|
45
|
38.5
|
150
|
65
|
|
YH5W-18
|
18
|
15.3
|
61.5
|
54
|
46.2
|
150
|
65
|
|
YH5W-21
|
21
|
17
|
71.8
|
63
|
54.2
|
150
|
65
|
|
YH5W-24
|
24
|
19.5
|
82
|
72
|
62
|
150
|
65
|
|
YH5W-27
|
27
|
22
|
92
|
81
|
69.8
|
150
|
65
|
|
YH5W-30
|
30
|
24.4
|
102
|
90
|
79
|
150
|
65
|
|
YH5W-33
|
33
|
27.5
|
112
|
99
|
86.7
|
150
|
65
|
|
YH5W-36
|
36
|
29
|
123
|
108
|
92.4
|
150
|
65
|
Application
1.The low weight facilitates installation and permits erection in limited spaces and at
almost all angles.
2.No continuous current and low current impulse residual voltage.
3.Excellent pollution and short circuit performance.
4.Safe to touch when energised by accident.
5.Stable U-I characteristics,even after multiple strikes.
6.Resistant to UV,ozone,chemicals,mechanical abuse.
Contact
