Product Details
Product Description
Product Description
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Auxiliary dc supply unit 216NG61, 216NG62,
and 216NG63
-Versions for 36 to 312 V dc input
-Outputs 24 V dc, 150 W
-Short-circuit and overload proof outputs
-ParalIei connection to increase rating
-ParalIei connection for redundancy
(two outputs)
-Space requirement: three rack divisions
All the REG 216 protection functions operate
with sampied primary system voltages and currents. The sampling rate of the analogue input
units is 12 times per period at rated power system frequency with a dynamic range of 15 bits.
All further signal processing takes place dig itally. The protection functions are therefore universally applicable, highly accurate and have
excellent long-time stabil ity.
Dc components and harmonic contents are efficiently suppressed by digital filters to avoid disturbance. The tripping logic for the internai protection functions (earlier a diode matrix), is software controlled in REG 216.
Setting and controi
The protection system is set and controlled
using a personal computer connected to it via a
serial interface.
Operation of the console is menu-assisted and
permits:
-Setting of parameters and recording of the
settings
-Display of measured values
-Display of events, their acknowledgement
and print-out
-Disturbance recording (option)
Self-monitoring and testing facilities
The self-monitoring and testing routine philosophy can be divided inta following sections:
-Self-monitoring
-Parameter viewing facilities
-Injection testing with separate test equipment
Self-monitoring
The self-monitoring and testing routine philosophy is quite different from conventionai testing
techniques. Whilst the previous practice in protection was to maintain availability through
comprehensive periodic testing, REG 216 does
this continuously by taking full advantage of
digital and data bus technology.
The self-monitoring functions have two elements:
-Continuous self-monitoring by hardware
-Cyclically executed testing routines, mainly
by software.
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