SALTEK is a specialist in surge protecting gadgets (SPD) defending infrastructure in all industrial areas, together with the railway sector.
We have now 25 years of expertise in improvement and manufacturing, in addition to extensive software information, making us leaders within the discipline of safety in opposition to atmospheric and industrial pulse overvoltage.
Voltage limiting gadgets for railway infrastructure
Voltage limiting gadgets (VLD) are our major merchandise to guard folks, animals, and electrical or digital tools in railway infrastructure.
Our options guarantee the protection of passengers and employees and reliability of rail transport methods, in addition to shield applied sciences in opposition to injury brought on by atmospheric surges and fault or operational overvoltages that may come up additionally throughout regular rail operations.
We provide voltage limiting gadgets in school 1, class 2.2 and sophistication 4.1 or 4.2 in line with EN 50526-2 Ed 2. Protections diploma adjust to the classification VLD-F (safety throughout failure) or VLD-O (safety throughout regular operation) in line with EN 50122-1 Ed.2
Price-efficient VLD-F surge arresters
Our SCG sequence of VLDs are designed primarily to guard folks and applied sciences within the occasion of a failed overhead contact line.
By quickly or completely connecting endangered conductive components of railway infrastructure with return path when overvoltage is detected, it can robotically disconnect the affected part within the respective substation.
When passing the excessive short-circuit present, a everlasting electrical bypass of SCG electrodes is achieved by patented built-in short-circuit swap. Built-in surge arrester eliminates excessive cost lightning impulses as much as 100kA. It options simple mounting sensible design, very low weight, IP67 ranking and as much as 10μs response time.
Dependable VLD-O+F contact voltage limiting gadgets
BVL sequence VLD-O+F are dependable, strong however light-weight (3.5kg) and quick surge protectors for electrical railways, in a position to function repeatedly with excessive vitality hazardous pulses (as much as 11 Mega A2S).
Combining highly effective antiparallel thyristors with a quick A2 surge arrester, they’re able to work in any electrical rail system (AC or DC) and guarantee private security and expertise safety in each VLD-O and VLD-F modes. Good design and use of contemporary supplies guarantee easy and quick meeting on railway monitor (UTn = 120V) or in workshops (UTn = 45V or 60V) with important working parameters.
State-of-the-art excessive vitality surge arresters
Our sort 4.1 (or 4.2 for workshops) VLDs are high-performance SALTEK surge protecting gadgets for railways. They’re designed to function with very excessive long-lasting currents and energies within the occasion of breakdown or undesirable working situation of electrical railways (prepare, metro, trams).
These VLDs guarantee the protection of individuals and applied sciences by limiting non-permissible contact voltages, stray currents or lightning pulses by non permanent equipotential bonding of protected components of the railway infrastructure (AC and DC traction).
The mix of varistors, electronically managed energy thyristors and contactors ensures optimum short-term and long-term potential to dissipate undesirable vitality from lightning strikes or brought on by overhead line breakdowns or throughout rolling inventory operation.
Processor-controlled VLD offers quick and environment friendly safety in opposition to undesirable pulses and surges, monitoring and distant reporting of the protected node standing, in addition to native and distant management of the protector operate.
These class Four VLDs have been made individually primarily based on an settlement with the shopper.
Surge protecting gadgets for railway telecommunications
Communication infrastructure have to be protected in opposition to overvoltage surges to make sure its reliability, which is crucial for the protected and clean operation of the railways.
SALTEK gives an entire portfolio of surge protecting gadgets to guard AC or DC energy inputs, radio receivers and transmitters (coaxial SPDs), Ethernet information strains (together with PoE), particular tools for distant digital tilting of antenna, RS-485 strains.
As well as, gadgets are appropriate for the newest LTE (4G / 5G) and older GSM-R methods and different telecommunication grids.
Surge arresters for AC or DC provide distribution
Energy provide strains of electrical or digital railway methods generally is a gateway for harmful lightning or industrial pulses and have to be protected. SALTEK gives a variety of SPDs for every type of AC energy provides (TN-S, TN-C-S, TN-C, TT, IT) in addition to DC.
Excessive pulse present values for heavy obligation functions, low voltage safety ranges and quick response for environment friendly safety, distant standing indication and simply detachable modules for simple set up and repair are simply few of the advantages of SPD SALTEK.
Along with the sort 1, 2 and three safety sequence, we additionally provide particular mixed SPD T1 + 2 ‘FLP MAXI’, that are a cost-efficient answer for many functions.
SPD for Ethernet, signalling, surveillance, fireplace, entry methods
Most railway management and signalling infrastructure is interconnected by cables via digital and analogue ports, which have to be protected in opposition to overvoltage surges.
This may be executed by deciding on the suitable SPD to guard Ethernet and information digital strains, analogue signalling and management circuits, numerous sensors, video cameras (coaxial or IP) and different digital railway infrastructure components.
Unsure about proper SPD choice and placement? We might help you free of charge. Fill out the enquiry kind on this web page for extra data.