CTB / CTBD current transformer secondary overvoltage protector an overview of the current transformer (CT) in the power system, widely used in measurement and control. Normal operation, the transformer secondary side is similar to short-circuit condition, the output voltage is very low. Operation of the secondary winding open circuit, or abnormal current flows through the primary winding (thundering current, the resonant current, capacitive charging current, the inductor current starts, etc.), will generate thousands of volts in the secondary or even thousands of volts over voltage. This is not only harmful to the secondary system insulation, but also the radical and burning transformers, and even endanger the lives and safety of staff. christian louboutin christian louboutin shoes christian louboutin boots christian louboutin boots christian louboutin sale christian louboutin bridal christian louboutin discount christian louboutin heels Chrstian Louboutin sandals Devalavi Red christian louboutin pumps cheap christian louboutin christian louboutin shoes sale christian louboutin cheap christian louboutin outlet christian louboutin booties christian louboutin men christian louboutin wedding shoes Christian Louboutin Peep Toe Pum Chrstian Louboutin sandals Christian Louboutin Slippers Christian Louboutin Flat Shoes Christian Louboutin Wedges Christian Louboutin Evening Christian Louboutin Ankle Boots Christian Louboutin Long Boots Christian Louboutin OverkneeBoot Christian Louboutin Pumps Alti Pump Black Christian Louboutin Peep Toe Pum Platforms Altadama Nude Christian Louboutin Wedges Une Plume Framboise Christian Louboutin Big Kiss studded leather flats Black Christian Louboutin Ankle Boots Belle Black Christian Louboutin Long Boots Meneboot Black christian louboutin shoes Christian Louboutin Rollerboy Spikes Men Shoes Black one, use function: This protection is mainly used for current transformer secondary side due to a variety of abnormalities caused by over-voltage protection. The protection and access to the current transformer secondary winding ends, normal operation leakage current is very small, high-impedance state. As the leakage current is very small (less than 1mA), the circuit protection action values ??and the accuracy of the meter accuracy is negligible. At this point the control circuit protection does not work. When the current transformer secondary winding circuit open or abnormal over-current, generated in the secondary winding voltage is higher than the normal operating voltage (transformer itself, its value depends on the current parameters and operating conditions), CTBD series Overvoltage protection can be generated effectively limited to within 50ns, thus completely avoiding the over-voltage damage, and reliable short-circuit the secondary winding and luminous tips, while providing a locking differential remote signal contacts. After troubleshooting, reset it to re-use, life of up to ten thousand times. Protection action to avoid the trouble of protection after the replacement, operation more convenient. Second, the product series: ● CTBD-1Q single winding over-voltage protection ● CTBD-6D 6 winding over-voltage protection ● CTBD-1D single winding over-voltage protection ● CTBD-6Q 6 winding over-voltage protection ● CTBD-3Q 3 winding over-voltage protection ● CTBD-9D 9 winding over-voltage protection ● CTBD-3D 3 winding over-voltage protection ● CTBD-9Q 9 winding over-voltage protection ● CTBD-4Q 4 winding over-voltage protection ● CTBD-12D 12 winding over-voltage protection ● CTBD-4D 4 winding over-voltage protection ● CTBD-12Q 12 winding over-voltage protection ● CTBD-4AQ 4 winding over-voltage protection ● CTBD-18Q 18 winding over-voltage protection ● CTBD-4AD 4 winding over-voltage protection Note: with Q is flush mounted, with D as a rail-mounted three, the technical performance: normal leakage current << 1mA breakover voltage Us 150V ± 20% on-time Ts Ts ≤ 20mS remote relay contact Capacity AC220V/5A DC28V/10A protective contact capacity AC500V/6A working environment temperature -10 ℃ ~ 70 ℃ Humidity ≤ 85% RH reset mode press the "reset" button; automatically "reset" seismic performance 1050-10HZ 5g 3min interference 4.4KV / M pressure 2KV50HZ 1min Installation Embedded, rail