ABB DCS system CI8303BSE013252R1 industrial control module

ABB DCS system CI8303BSE013252R1 industrial control module

Technical data of product parameters

When a motor or generator isCI8303BSE013252R1 stationary, there is no forced
cooling and the cooling time constant is much longer. The time
constant at standstill is defined by the setting of the factor “k”.
The time constant is switched when the current falls below a
given value and the external signal “Stillst.-Inp” is being applied
at the same time.
The universal model enables overtemperature to be monitored
on the basis of a general function, which describes the temperature rise for a given current change. Fig. 3.5.19.1 shows the
response of the general CI8303BSE013252R1 function s (t) to a step change in the
current. The general function s (t) is divided into 40 sections. The
mean values h1, h2 … h40, which define the steps of the impulse
response, are determined graphically from the derivation of the
function s (t) for the individual sections in relation to time. These
instantaneous values of the impulse response are entered as
h[1] to h[40] when using the universal model. The
“ResponseTime”, i.e. the duration of the impulse response, must
also be entered. Zero must be entered for the thermal time constant “TimeConstant”.
The reduced cooling of a motor or generator at standstill is taken
into account by extending the impulse response by the factor “k”
when an external signal coincides with operation of the low-current monitor.Many synchronous machines are subject to severe vibration
when operating at speeds other than rated speed.
Vibration is particularly pronounced when underspeeding, but
can occur both at under and overspeed. For this reason, a CI8303BSE013252R1 frequency scheme will usually include two stages for alarm and
tripping at overspeed and two stages for alarm and tripping at
underspeed. A time delay confines the danger of false tripping
during transients.The rate-of-change of frequency function only trips when the
rate-of-change is higher than setting, the absolute frequency
criterion picks up and the voltage is not lower than the
undervoltage setting.
The additional absolute frequency criterion prevents unwanted
operation of the rate-of-change function during power system
transients. Where it is desired that the rate-of-change function
should operate without regard to the absolute frequency, this is
achieved by setting the absolute frequency criterion to ‘0

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Introduction to main products

Focus on DCS, PLC, robot control system and large servo system.

Main products: various modules/cards, controllers, touch screens, servo drives.

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Main brands include ABB Bailey, GE/FANC, FOXBORO, Invensys TRICONEX, Bentley BENTLY, A-B Rockwell, Emerson EMERSON, OVATION, MOTOROLA, XYVOM, Honeywell HONEYWELL, Rexroth, KUKA, NI, DEIF, Yokogawa, Woodward WOODWARD, Ryan, Schneider SCHNEIDER, Yaskawa, Moog MOOG, PROSOFT and other brands

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This article from the temporal Ming sheng automation equipment co., LTD.,

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