Z7116 control module DCS PLC system imported with original packaging

Z7116 control module DCS PLC system imported with original packaging

Technical data of product parameters

This function Z7116 provides backup protection to clear a fault after
being enabled by the unit protection for the case that the circuitbreaker (CB) should fail. It has to operate as quickly and reliablyas possible especially on EHV systems where stability is crucial.
To this end, current detectors continuously monitor the line
currents and if they do not reset after a preset time, which allows
for the operating times of the unit protection and the circuitbreaker, a tripping command is issued to either attempt to trip Z7116the same circuit-breaker again or trip the surrounding circuitbreakersThe resetting time varies typically between 20 and 30 ms.Since for the above application, the current detectors should
reset as quickly as possible, Fourier filter algorithms are included
to minimise the affect of c.t. saturation and eliminate completely
or substantially any DC offset.
The block diagram below shows the basic functions, which are
explained in the following Sections.The function has three current detectors. When it is used in the Z7116
three-phase mode, each current detector measures the current
in each of the three phases.
In order to accommodate a fourth current detector measuring
the neutral current, this function has to be duplicated and the
second function set to the single-phase mode and the
appropriate current pick-up. The two functions then operate in
parallel .This arrangement also covers the two special cases of phase-tophase-to-ground and three-phase-to-ground faults.The ‘Redundant Trip’ logic performs phase-segregated direct Z7116
tripping of the same circuit-breaker without any intentional time
delay, if the Start inputs are active and the corresponding
current detectors have picked up. This ensures that the breaker
receives a tripping command in the event of a unit protection trip
circuit failure, which would otherwise cause a second attempt to
trip the same breaker or backup tripping of the surrounding
breakers.

Product picture display

bout us service idea

We are able to supply equipment and spare parts from different countries and manufacturers. We can solve the trouble you find in many places or worry about the quality of our products. We have great advantage on the price, E-mail the detailed information of our products. We sincerely welcome you to inquire by phone or use!

With the business philosophy of “professionalism, integrity, innovation, cooperation and win-win”, we continue to develop new products, provide high-quality services to customers, pursue customer satisfaction to the maximum extent, and continue to develop new areas of business.

Email: onewwww@foxmail.com

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.

Advantages: supply imported original products, professional discontinued parts, fast delivery, accurate delivery time,

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

reminder

For more products, please contact the email for inquiry onewwww@foxmail.com

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

link: http:www.onewwww.com