TSXPBY10 module warehouse stock
Technical data of product parameters
To avoid any risk of mal-operation of TSXPBY10 the ground fault detector, a
setting must be chosen that is safely above the voltage offset
that can occur in normal operation.
Under conditions of power system instability, the offset can be
increased by the power system capacitances oscillating the v.t.
inductances (ferroresonance).
The risk of mal-operation of the ground fault detector due to
switching transients can be minimised or even eliminated by
adding a resistor Rp and introducing a delay. The positive effect
of this depends on how low the resistor Rp may be. A low value
increases the current and thus the power rating of the resistor
and the v.t’s or the grounding transformer.Should no ground fault be located on one of the generator feeders, it has to be on the busbars or possibly an outgoing feeder. TSXPBY10
In such a case, the voltage function operates and the alarm
“Busbar ground fault” is generated after the set delay of 2 s.
The power function can only detect a ground fault on the generator feeder when the circuit-breaker is closed. For the time
that the circuit-breaker is open, ground fault protection is
afforded by a sensitive voltage function which trips the excitation
switch in the event of a stator ground fault after a delay of 0.5 s.
This ground fault protection scheme is blocked once the circuitbreaker closes.Should the ground fault detector pick up for a ground fault on the
busbar, it gives alarm but the fault is not tripped. The resistor Rp
must therefore be rated for continuous operation. A resistor
rated for 1 or 2 A is frequently used, which while being satisfactory for most v.t’s, only has a limited damping effect on transient
voltages. In the case of the v.t. in the example, the v.t. output
power varies for a constant current of 2 A between 577 and TSXPBY10
831 VA.
Should it be considered necessary to limit the risk of mal-operation still further, the resistor Rp can be designed for the maximum permissible continuous rating of the v.t. This is usually in
the range 5 to 10 % of the permissible 10 s rating. If the v.t. is
also used for metering purposes, it must be borne in mind that
both voltage and phase errors are higher at the maximum continuous rating.
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
Reviews
There are no reviews yet.