Hitachi LPT020A Power Supply Module
Teleprotection: Safeguarding the electrical grid
Critical to grid operations is the protection of power lines, through teleprotection.
Teleprotection systems were developed alongside the electrical grids themselves,
and the operational communication networks used are mainly driven by those applications.
In 1940. the average telephone user was just getting to grips with the rotary-dial telephone,
while Hitachi Energy was deploying power-line communications: utilizing the electrical
transmission infrastructure to carry teleprotection data and avoiding the need for a separate Pilot Line.
Public telecom networks have evolved at an amazing speed, this has been primarily driven
by new applications (e.g. smartphones, YouTube, email) which results in a growing demand
for increased bandwidth. Subsequently this has resulted in network solutions with a higher
capacity for data transmission with a lower focus upon the quality of service.
T-VERTER N2-405-M3
SIEMENS 6AV3637-1LL00-0AX1 P.100 STN
Siemens Sinamics G120CPN 6SL3210-1KE11-8AF1
SEW EURODRIVE MDX60A0075-5A3-4-00
Control Techniques Commander C300-01200042 A 0.75kW
ALLEN-BRADLEY 2094-BM02
PARKER PVD-C3412
BAUMULLER NURNBERG BUS21-30/60-31-020
Schneider Electric TSXP5720 with Module TSXFPP20
MITSUBISHI HF-SP52 SERVO MOTOR
BANNER IVUTBPW08
Cognex KCC-REM-CGX-DM500
Telemecanique Square D ATV18U29M2 AC Speed Drive 2HP/1.5kW 200-240V
HANNA INSTRUMENTS HI97702C
ABB ACS150-03E-05A6-4
Teleprotection systems, in contrast, have always operated under the pressure of protecting
critical infrastructure. Reliability and quality of service is paramount, resilience is required,
while new technologies and techniques must prove themselves robust enough to match,
or exceed, the existing equipment before they can safely be used in the electrical network.
The fully redundant network element supports all SDH-traffic protection schemes
including 2/4-fibre MS-Spring. All optical ports are XFP / SFP based.
Fully integrated and managed boosters / preamplifiers / equalizers enable highly
flexible and reliable long-haul connections, without the need for additional external
devices. The robust mechanical and EMC-design including the distributed power
supply concept of FOX515H are optimized to cope with harsh environments which
are typical for utility applications. The mechanical, electrical and EMC / safety
performance of FOX515H is fully type-tested by an independent, certified Swiss
Test-lab. Most interfaces are provided with multirate SFP/XFP cages enabling each
individual port to have a different configuration with a wide variety of optical
wave-lengths for WDM, connectors and available ranges.