Solid-State Decoupler for Cathodic Protection System
Product Introduction
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Product introduction
In the cathodic protection system, solid state de-coupler as dc isolation and AC coupling device is not only used to prevent the cathodic protection current from reaching a predetermined threshold voltage, but also can conduct inductive alternating current.
- Product features:
- Stable performance: it is conductive to the coupled AC current on the pipeline, which can effectively reduce the induced AC interference voltage.
- Able to withstand the expected large impact: in the case of induced lightning or single-phase short circuit fault of power lines, it can withstand the expected large impact or fault current, and the fault state is short circuit mode.
- Wide range of application: adapt to field environmental conditions, meet the requirements of easy installation and maintenance on site.
- Long life: Reasonable use, service life can exceed 20 years.
- Product application:
- Transient, transient and long-term overvoltage protection.
- Solid state de-coupler can be used in electrified railway, high voltage AC transmission and distribution, substation, power plant and other AC interference sources to alleviate the ac interference of buried steel pipeline.
- Ac grounding and DC isolation of electrical equipment in the cathodic protection system.
product Parameter
| Technical parameters | |
| Rated isolation voltage | -2V/+2V(optional -3V/+1V, -2V/+0.4V) |
| Nominal discharge current (8/20us) | 100KA |
| Lightning impulse current (10/350us) | 50KA |
| Ac fault current | ≥3500A(optional: 5000A, 9000A) |
| Steady state ac current rating (±2V) | 50A |
| Dc leakage current | ≤1mA |
| Response time | 10ns |
| Protection level | IP65 |
| Explosion-proof grade | Exd II CT4 |
| Operating temperature range | -25 ℃ ~50℃ |
| Installation method | with explosion-proof box and bracket surface installation |
Always customer-oriented, and it's our ultimate goal to get not only by far the most reputable, trustable and honest supplier, but also the partner for Solid-State Decoupler for Cathodic Protection System. We insist on the principle of 'Credit being primary, Customers being the king and Quality being the best', we are looking forward to the mutual cooperation with all friends at home and abroad and we will create a bright future of business. We create a good environment for all kinds of talents to stand out and ensure that all kinds of talents have fair learning and promotion opportunities.
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