Kingtronics Blog

Surge arresters are designed to protect electrical equipment from damaging effects of spikes and transients caused by lightning, utility switching, isolation arcing, electrical motor cycling, or any other sudden change in electrical power flow on incoming AC power lines. 

And these devices also provide ideal protection for outdoor lighting and pole lamps, panel boards, workshops, refrigeration systems, electric motors and controls, heat pumps and air conditioning equipment, and many other electrical devices. 
More information about our products: http://www.kingtronics.com/surge-arresters/

Amplifier manufacturers please kindly pay attention to China top ISO manufacturer Kingtronics.

Kingtronics is one of the most popular manufacturers in the electronic components field, who can offer you superior quality, unbeatable price and efficient service.

Do you need following SKT, MKT and trimpot 3329H? Below pls check and advise. Your inquiry is much appreciated. ^_^

SKT--Surge Arrester
SKT-2R-230-A5L Bulk RoHS
Datasheet: www.kingtronics.com/pdf/2-Surge-Arresters.pdf

RKT--Trimmer Potentiometer
RKT-3329H-102-R 1K Ohm
Datasheet: www.kingtronics.com/pdf/RKT-3329.pdf

MKT--Radial Multilayer Ceramic Capacitors
0.1uF 100V Y5V +/-20% pitch 5.08mm  Bulk RoHS
0.01uF 50V X7R +/-10% pitch 5.08mm  Bulk RoHS
0.1uF 50V Y5V   +/-20% pitch 5.08mm  Bulk RoHS
220pF 1000V NPO +/-5% pitch5.08mm Bulk RoHS
Datasheet: www.kingtronics.com/pdf/radial-mlcc-capacitors.pdf

Kingtronics surge arrester divides into two kinds: 2-Electrode arresters and 3-Electrode arresters.

What is surge arrester? It is a product installed near the end of any conductor which is long enough before the conductor lands on its intended electrical component. The purpose is to divert damaging lightning-induced transients safely to ground through property changes to its varistor in parallel arrangement to the conductor inside the unit.

Surge arrester is also called a surge protection device (SPD) or transient voltage surge suppressor (TVSS). They are only designed to protect against electrical transients resulting from the lightning flash, not a direct lightning termination to the conductors.

SKT--Surge Arrester:
SKT-2R-230A6L Bulk RoHS
SKT-3R-230AL Bulk RoHS

Application: distribution system, protector, power station equipment, satellite receiver, server, communication system...

During 13-16 Oct. 2012 , we will exhibit at the "electronicAsia 2012" ---> Booth No.: 5G-D12; HongKong
During 13-16 Nov.2012 , we will exhibit at the "Electronica 2012" ---> Booth No.: B6.437/5; Munich Germany
 
We treasure every opportunity to meet with you, our valued customer. We cordially invite you to visit us.
If you will be there, please leave us a message, who will be your representative to visit us, and please advice your plan to us, ok?
 
With Compliments
Kingtronics International Company
ISO 9001: 2008 manufacturer

Telecommunications installations as well as CATV amplifiers, CB transmitters, home entertainment systems, computers and similar equipment can be exposed to voltage surges conducted via the power network. The combination of a surge arrester and a varistor offers proven protection in these cases. The phase and neutral conductors are connected to ground potential of both protection elements.

The capability of the surge arrester in energy dissipation against switching surge is well expressed by the magnitude of kJ/kV (arrester rated voltage). These values show the dissipated total energy per two shots of switching surge that the surge arresters can withstand thermally with these values. Where the energy capability is inadequate in our standard series.

Typical structure of surge arresters are shown in Figure below .The surge arresters are basically composed of the TNR elements, housing and associated parts with insulating gas filling as shown in figures. The hermetic sealing of the housing is constructed with weather-proof synthetic rubber. The pressure relief diaphragm is structured with special metal plate, which is ruptured when a sudden pressure rise occurs in case of the internal failure.

The principal "active" element of the Surge Arrester is a metal oxide varistor characterized by high non-linearity. At a working voltage mainly a capacity current flows smaller than 1 mA. Any voltage increase causes a large increase of current flowing through the varistor, leading in turn to immediate limitation of further voltage increase on arrester terminals. When the over voltage disappears, the arrester immediately returns to its basic state.

Surge Arresters are equipped with a disconnecting device that disconnects the arrester from the network if it becomes damaged as the result of over voltage of too high energy or inadmissible voltage increase in the system. If such a situation occurs then the bottom terminal of the disconnecting device is "rejected" by the spring inside. This terminal remains suspended on an insulation "leash".

Kingtronics sell 2-Electrode arresters and 3-Electrode arresters. Following are 2-Electrode arresters and 3-Electrode arresters’s pictures.