SURGE PROTECTIVE Shifilin Electric

SURGE PROTECTIVE DEVICE Surge Protective Device BHP Max. discharge current Imax/Iimp (kA) Max. continuous operating voltage Uc(V) R: with alarm auxiliary contact Blank: without alarm auxiliary contact Standard operation voltage In order to use surge protective devise more effectively, the following information is necessary. 1. The grounding system types of the protected device and the maximum operating voltage of the power grid Us. Max. 2. The impulse withstand voltage of the protected device. • Common mode protection: Protection of line to earth ( Protection of line and neutral to earth) Max....

The internal core of SPD is one zinc-oxide pressure-sensitive element and zinc oxide consists of grains. When the surge current with energy through the SPD far exceeds its specified value, ceramic breakdown will happen, and certain grain boundary layers in the ceramic will be damaged. Under extreme circumstances, excessive heat generated by over high continuous load will damage the grains, and even break the grains down under serious conditions, leading to the fusion of ZnO grains and thus causing short circuit. Since there is no time for the burst heat to transfer to the thermal cutoff mechanism,...

Wiring Diagrams

SURGE PROTECTIVE DEVICE Installation Method of SPD 1. The cable for connecting SPD shall be as short as possible, since the impedance of the wire can weaken the protection function of SPD. 2. To realize effective protection, it is suggested to install one lead-in device to locally diverse the current at the inlet of the device. 3. When one switch device and one SPD are mounted in a serial manner, the wire shall be as short as possible. The cassette module of BHP series cassette surge protective device, there is unique pilot hole at the bottom of the base, cores of different specifications cannot...

TN-C system three phase TN-S system three phase Protection equipment Protection equipment SURGE PROTECTIVE DEVICE TN-C-S system three phase ClassⅠprotection Grounding connection Grounding connection Single-Phase Power Supply Scheme Protection equipment Protection equipment IT system three phase Special notes: Time-delay leakage protector shall be selected for the RCD in the power supply system; leakage protector insensitive to atmospheric over-voltage shall be selected for the RCD installed in residences and office buildings.

TT System Scheme 2 Protection equipment Protection equipment SURGE PROTECTIVE DEVICE Special notes: Time-delay leakage protector shall be selected for the RCD in the power supply system; leakage protector insensitive to atmospheric overvoltage shall be selected for the RCD installed in residences and office buildings. IT Residual current protection Main panel Main panel Main panel Residual current protection Main panel Residual current protection Main panel

MOTOR CONTROL (CONTACTOR/ MS/ MMS), CIRCUIT BREAKER (MCCB/ ELCB/ EMCCB/ MCB), AIR CIRCUIT BREAKER, AUTOMATIC TRANSFER SWITCHES (Panel Board Type/ Residential Unit Use), SURGE PROTECTIVE DEVICE, LOW VOLTAGE POWER CAPACITORS, SMART METER, INVERTER Breaker & switchgears overseas sales dept. 3F, No.9, Sec. 1, Chang-an E. Rd., Zhongshan Dist., Taipei City 10441, Taiwan T. +886-2-2541-9822 F. +886-2-2581-2665 e-mail. [email protected] http://circuit-breaker.seec.com.tw Headquarters 16F, No.88, Sec. 6, Zhongshan N. Rd., Shilin Dist., Taipei City 11155, Taiwan T. +886-2-2834-2662 F. +886-2-2836-6187...