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Product name: SSD Detector
DK-T3 Product model: DK-T3
2019-07-17 Product time: 2019-07-17
SSD Detachment
The direct effect of the use of this product with SPD is that the SPD backup protector does not break under the impact of large lightning. After the SPD fails, the small power frequency current flows quickly and breaks to ensure the safety of the power grid and electricity.

product description

SSD Detachment

(1) According to the relevant standards (GB18802.1 and GB50057), the front end of the SPD circuit must be connected in series with overcurrent protection appliances (such as fuses and circuit breakers). When the SPD fails or is short-circuited, the fuses and circuit breakers cannot coordinate with the SPD, resulting in fire and lightning damage to the equipment. The fuses and circuit breakers currently used with a large number of SPDs are incompatible in three ways:

1. Misinterruption and easy damage when lightning strikes—lightning protection fails;

2. Power frequency freewheeling does not break when SPD short circuit occurs-the rated breaking current of fuses and circuit breakers, if SPD fails or short circuit, if the rated breaking current of fuses and circuit breakers can not provide Instantaneous current (for example, C32 circuit breaker needs to provide 320A instantaneous current), SPD may cause a fire accident;

3. High lightning impulse current residual voltage-the reliability of equipment lightning protection is reduced.

(2) In response to the inconsistency of the above products, our company has developed this series of SPD backup protector products through long-term research and development and a large number of tests and verifications.

1.Zui large discharge current Imax40Ka (8 / 20us) is not broken-to ensure that SPD lightning protection is effective;

2. SPD fault power frequency freewheeling breaking value is lower than 3A ± 1A-to ensure the safety of the power grid and power consumption;

3. Low lightning shock residual voltage-increase the reliability of lightning protection of equipment.

The direct effect of the use of this product with SPD is that the SPD backup protector does not break under the impact of large lightning. After the SPD fails, the small power frequency current flows quickly and breaks to ensure the safety of the power grid and electricity.

SSD Detachment

Technical Parameters:
Specifications Model Rated working voltage Ue Uninterrupted inrush current Is Inrush current withstand capability Current breaking value In Enclosure protection level
DK-T2 230V 100kA (8 / 20μs) Meets GB18802.1-2011 type II test requirements 3A ± 1A IP20

 

 

1. Working temperature: -25 ° C to + 70 ° C;

2. Storage temperature: -40 ° C to + 85 ° C;

3. Relative humidity: not more than 95%;

4. Run indoors or in a place where there is no rain or snow.

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