General Description
Wortai Electric is a chinese leading manufacturer & Supplier of Polymer Surge Arresters for Distribution with with over 20 years experience, the voltage rating from 3kV to 36kV, the nominal Discharge Current is available for both 10kA and 5kA, OEM and ODM services are welcome.
M.V. Surge Arresters are used to protect transformers and other equipments in station and distribution systems against the damage by atmospheric (especially lightning effects) and operational conditions.Metal oxides surge arresters without gaps are designed to prevent probable damages in the case of typical surges in energy systems while it has no negative effect on energy systems in normal operation voltage. This special feature of gapless arresters originating from non-linear characteristics of metal-oxide varistors between voltage and current scales. The non-linear feature is much higher compared to SiC surge arresters.
Gereral Parameters
Product Parameters
Arrester |
Rated voltage |
Max. continues |
Residual Voltage (kV) |
|||
as per IEC |
as per ANSI/IEEE |
1/10 μs Steep current impuse |
8/20μs Lightning current impulse |
30/60μs Switching current impulse |
||
Uc (kV) |
MCOV (kV) |
|||||
YH10W-3/9 |
3 |
2.4 |
2.6 |
11.3 |
9 |
8.9 |
YH10W-6/18 |
6 |
4.8 |
5.1 |
20.5 |
18 |
16 |
YH10W-9/27 |
9 |
7.2 |
7.65 |
31 |
27 |
24 |
YH10W-10/30 |
10 |
8.0 |
8.4 |
34.1 |
30 |
26.6 |
YH10W-11/33 |
11 |
8.8 |
9.3 |
38 |
33 |
29 |
YH10W-12/36 |
12 |
9.6 |
10.2 |
41.5 |
36 |
30.6 |
YH10W-15/45 |
15 |
12.0 |
12.7 |
52 |
45 |
38.3 |
YH10W-18/54 |
18 |
14.4 |
15.3 |
62 |
54 |
46 |
YH10W-21/63 |
21 |
16.8 |
17.0 |
72.5 |
63 |
53.5 |
YH10W-24/72 |
24 |
19.2 |
19.5 |
82.5 |
72 |
61.2 |
YH10W-27/81 |
27 |
21.6 |
22.0 |
93.2 |
81 |
69 |
YH10W-30/90 |
30 |
24.0 |
24.4 |
104 |
90 |
80 |
YH10W-33/99 |
33 |
26.4 |
28.0 |
113.8 |
99 |
84.2 |
YH10W-36/108 |
36 |
28.8 |
29.0 |
124.2 |
108 |
91.8 |
Normal duty -5kA Series
Rated voltage
Max. continues
Residual Voltage (kV)
as per IEC
as per ANSI/IEEE
1/10 μs Steep current impuse
8/20μs Lightning current impulse
30/60μs Switching current impulse
Uc (kV)
MCOV (kV)
YH5W-3/9
3
2.4
2.6
11.3
9
8.9
YH5W-6/18
6
4.8
5.1
20.5
18
16
YH5W-9/27
9
7.2
7.65
31
27
24
YH5W-10/30
10
8.0
8.4
34.1
30
26.6
YH5W-11/33
11
8.8
9.3
38
33
29
YH5W-12/36
12
9.6
10.2
41.5
36
30.6
YH5W-15/45
15
12.0
12.7
52
45
38.3
YH5W-18/54
18
14.4
15.3
62
54
46
YH5W-21/63
21
16.8
17.0
72.5
63
53.5
YH5W-24/72
24
19.2
19.5
82.5
72
61.2
YH5W-27/81
27
21.6
22.0
93.2
81
69
YH5W-30/90
30
24.0
24.4
104
90
80
YH5W-33/99
33
26.4
28.0
113.8
99
84.2
YH5W-36/108
36
28.8
29.0
124.2
108
91.8
Ur (kV)
operating voltage
※ YH*W type surge arresters are normally equipped with an arrester disconnector connected in series: In case of failure of the arrester due to discharges above rated values, it disconnects the failed arrester from the system, thereby preventing its being a continuous source of fault, besides, enabling the site people to easily find the failed arrester.
※The continuous operating voltages Uc (as per IEC) and MCOV (as per ANSI) differ only due to deviations in type test procedures.
※ For Specification or application beyond the range listed here,please contact us for detail.
※ Above parameters are also applicable to the porcelain housed Surge arresters.
Test and Inspection Equipments
Certifications
Wortai Album
Why Choose WORTAI
More than 20 years manufacturing experience in electric power industry
Top quality products, ISO9001, ISO14001, KEMA, CNAS certificates
Custom tailored products, OEM & ODM are welcome
Challenging prices for giving customers the greatest benefits
Fast response time, we promise to reply customer’s email within 24 hours
Attractive lead times, plenty of equipments and workers to ensure the delivery on time
Top skilled technicians
Flexibility
With competitive price, good quality and best service, WORTAI will be your most wise choice. Together we're winners! Let's do it right now!
Contact: Kevin Lee
Phone: 0086-13221182086
Tel: 0086-577-57154206
Add: No.2,HQ Economy Park,Xuyang Rd,Yueqing City,Zhejiang Province China