Production Description
Wortai Electric is a China manufacturer & Supplier of Porcelain Surge Arrester for Distribution with with over 10 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.
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) |
|||||
Y10W-3/9 |
3 |
2.4 |
2.6 |
11.3 |
9 |
8.9 |
Y10W-6/18 |
6 |
4.8 |
5.1 |
20.5 |
18 |
16 |
Y10W-9/27 |
9 |
7.2 |
7.65 |
31 |
27 |
24 |
Y10W-10/30 |
10 |
8.0 |
8.4 |
34.1 |
30 |
26.6 |
Y10W-11/33 |
11 |
8.8 |
9.3 |
38 |
33 |
29 |
Y10W-12/36 |
12 |
9.6 |
10.2 |
41.5 |
36 |
30.6 |
Y10W-15/45 |
15 |
12.0 |
12.7 |
52 |
45 |
38.3 |
Y10W-18/54 |
18 |
14.4 |
15.3 |
62 |
54 |
46 |
Y10W-21/63 |
21 |
16.8 |
17.0 |
72.5 |
63 |
53.5 |
Y10W-24/72 |
24 |
19.2 |
19.5 |
82.5 |
72 |
61.2 |
Y10W-27/81 |
27 |
21.6 |
22.0 |
93.2 |
81 |
69 |
Y10W-30/90 |
30 |
24.0 |
24.4 |
104 |
90 |
80 |
Y10W-33/99 |
33 |
26.4 |
28.0 |
113.8 |
99 |
84.2 |
Y10W-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) |
|||||
Y5W-3/9 |
3 |
2.4 |
2.6 |
11.3 |
9 |
8.9 |
Y5W-6/18 |
6 |
4.8 |
5.1 |
20.5 |
18 |
16 |
Y5W-9/27 |
9 |
7.2 |
7.65 |
31 |
27 |
24 |
Y5W-10/30 |
10 |
8.0 |
8.4 |
34.1 |
30 |
26.6 |
Y5W-11/33 |
11 |
8.8 |
9.3 |
38 |
33 |
29 |
Y5W-12/36 |
12 |
9.6 |
10.2 |
41.5 |
36 |
30.6 |
Y5W-15/45 |
15 |
12.0 |
12.7 |
52 |
45 |
38.3 |
Y5W-18/54 |
18 |
14.4 |
15.3 |
62 |
54 |
46 |
Y5W-21/63 |
21 |
16.8 |
17.0 |
72.5 |
63 |
53.5 |
Y5W-24/72 |
24 |
19.2 |
19.5 |
82.5 |
72 |
61.2 |
Y5W-27/81 |
27 |
21.6 |
22.0 |
93.2 |
81 |
69 |
Y5W-30/90 |
30 |
24.0 |
24.4 |
104 |
90 |
80 |
Y5W-33/99 |
33 |
26.4 |
28.0 |
113.8 |
99 |
84.2 |
Y5W-36/108 |
36 |
28.8 |
29.0 |
124.2 |
108 |
91.8 |
※ 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.
Test and Inspection Equipments
* 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
WORTAI have been sold to over 20 countries and regions, spread all over Asia, Africa,
Middle & South America, Middle East and Europe, we also has done OEM service for some world famous brands.Choosing WORTAI means being one step ahead of the general development. We look forward to a closer relationship and mutually beneficial cooperation with any prospective customers in the near future. WORTAI will work with you shoulder-to-shoulder to satisfy your needs.
With competitive price, good quality and best service, WORTAI will be your most wise choice. Together we're winners! Let's do itright now!
Contact: Kevin Lee
Phone: 0086-13221182086
Tel: 0086-577-57154206
Add: No.2,HQ Economy Park,Xuyang Rd,Yueqing City,Zhejiang Province China