ABB OKYM175W22 industrial control automation spare parts card module

ABB OKYM175W22 industrial control automation spare parts card module

Technical data of product parameters

Providing the OKYM175W22 conditions for directional measurement are fulfilled
i.e. the current higher than ‘I dir’ and the voltage higher than its
enabling level ‘U-Setting’, a protection function transmits a
blocking signal to the remote station immediately it detects a
fault in the backwards direction.The setting of the current enabling ‘I dir’ must take account ofthe zero-sequence component in normal operation arising fromsystem asymmetries.
The pick-up setting for the voltage enabling signal ‘U-Setting’ is
determined by the level of asymmetries on the secondary side
(v.t. tolerances, asymmetrical burdens etc.). OKYM175W22
The ability to read voltage and current values on the relay is a
useful aid for determining these settings.
For example, if the enabling current setting ‘I-Setting’ is too low,
the pick-up signal lights continuously (current circuit enabled).
Since an E/F causes asymmetrical voltages in the vicinity of the
fault, the current flowing via the system capacitances also has a
zero-sequence component. A capacitive current of this kind on a
long line lies within the setting range of the sensitive E/F protection function.The pick-up level ‘I dir’ of the current circuit for the directional
measurement has a fixed setting of 0.7 x ‘I set’ to take account
of influences such as c.t. errors and the capacitive charging
currents of the line.The line marking the reversal of direction lies at +90° in relationto the reference voltage. OKYM175W22
In order to achieve symmetrical operation of the directional element in spite of this, the characteristic angle should equal that of
the source impedanceThe basic time is the period between pick-up of the protection OKYM175W22
and the earliest possible trip.
The operation of the protection function can be coordinated with
others on the same line by judiciously setting the basic time.
The basic time is also used to achieve coordination between the
E/F function (three-phase tripping) and the distance function
(phase-selective tripping)In a blocking scheme, tripping is delayed by the setting of ‘t wait’
to allow time for the protection in the opposite station to decide
on the direction of the fault and to transmit a corresponding
blocking signal if necessary

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