Voltage Limiting Device Abb

Data sheet doc no.

Voltage limiting device abb.

6 seitiges datenblatt cover page. Ovpd panels of negative voltage regulator device are integrated with over voltage protection. The hvl hybrid voltage limiter is a voltage limiting device which that is used to prevent impermissible touch voltages in dc. Voltage limiting device based on a mechanical breaker class 4.

Data sheet voltage limiting device hvl 120 0 3 revision. Scr static switch for fast operation 1 ms when the voltage exceeds the dangerous level of 300 v or 600 v. Abb manufacturer name voltage limiting device hvl voltage limiting device hvl 120 0 3 type designation class 2 2 acc. Thyristors devices of classes 1 and 2 are passive i e.

Hitachi abb power grids has more than 100 years of experience in designing and manufacturing surge arresters and protection devices. Voltage limiting devices estra vguard. Voltage limiting device safety with speed protect people and equipment against rail to ground hazards vld detects and removes hazardous voltage conditions by shorting the running rails to ground in a timely effective and safe manner. Voltage limiting devices are available for nominal triggering voltage 60 v and 120 v.

Hi tech os series back up current limiting fuses designed to enhance protection on overhead distribution systems. Voltage limiting device based on a mechanical breaker and additional solid state electronic switching elements e g. The most common applications are the connection of two independent systems bypassing or replacing of a current limiting reactor and connecting additional power sources ie generator or grid connection. Data sheet voltage limiting device hvl 120 0 3 document native title.

The i s limiter can be used in various applications providing a very high and fast fault current breaking capability at high operating currents. Voltage limiting devices are used to prevent impermissible touch voltages in dc traction systems in normal operations and in fault conditions by bonding the return circuit of a dc railway system to the earthing system or to the exposed conductive parts. They do not require a power supply and can be used along the railway line. Hi tech ext series back up current limiting fuses designed for installation in wet well fuse holders for oil filled pad mounted switchgear and transformer applications.

Sécheron s vguard voltage limiting device is built on proven technologies and meets the electrical safety and internal arc testing requirements in the en 50122 1 and en 50526 2 standards. En 50526 2 class according to test standard ha xxxxxxxx serial number 04 2017 production date u tn nominal triggering voltage i imp n lightning current impulse i w.