Prosurge is glad to announce that we have just won a surge protection project. The customer is Pakistan Air Force and they will use our SPD to protect their valuable lab equipments. The project will last for the next 5 years. The success of this tender relies on the joint efforts of our Pakistan [...]
Not necessarily. A Type 1 SPD offers versatility by being able to be connected to either side of service entrance, however UL does not compare the surge clamping performance of a Type 1 SPD versus that of a Type 2 SPD. UL investigates clamping performance of all SPDs equally, without regard for SPD type. UL [...]
On Jan. 9, a Thai customer visited Prosurge for product training concerning surge protective device (SPD). We went deep concerning the classification and selection of SPD, the new changes on the UL 1449 4th edition, the difference between high voltage and low voltage surge protective device, etc. The training lasted for [...]
Prosurge has just finished a new surge protection project in Philippines. The customer, one of the largest generator manufacturer in Philippines, use our SPD model SP275A/2P-S to replace OBO V20-C. The SPD is installed to protect the rectifier cabinet.
It is impossible to prevent voltage surges from either entering your facility or from occurring inside of your facility. When protecting a facility against transients, the best approach is a networked or cascaded approach. As shown in the graphic below, The Institute of Electrical and Electronics Engineers (IEEE) has developed three categories that every facility [...]
Though we try our best to offer an extensive, thorough product presentation on our website, catalogs and other documents, we believe the best way for model selecting is to consult with us with your requirement and then our professional will recommend a suitable model.
The following examines a few of the key differences between Underwriters Laboratory(UL)’s required test for surge protective devices (SPDs); ANSI/UL 1449 Third Edition and the International Electrotechnical Commission (IEC) required test for SPDs, IEC 61643-1. Short Circuit Current Rating (SCCR): The capacity of current with which the tested SPD can withstand at the terminals where [...]
Choosing the right surge arrester(s) is a key factor to guarantee correct protection of the installation. A poorly designed Lightning & Surge protection system may lead to early ageing of the SPD and potential failure of the protective devices in the installation allowing damage to the primary systems up stream, thus defeating the rationale behind [...]
Photovoltaic systems are technologically highly sensitive and a direct lightning strike would definitely destroy it. There is also yet another hazard,as a lightning strike could create surge voltage near the solar power system and these surge voltages can also destroy the system. The inverter is the primary point in need of protection. Usually, inverters will [...]
In the past, some manufacturers have used joule ratings in their specifications. They are not considered a good indicator for SPD performance and not recognized by any standard organizations. Prosurge doesn’t support this specification also.
