ABB XU D194 3BHE018137R0001 Optical fiber repeater

Description

If any individual phase current exceeds the pickup level for the XU D194 specified trip time a trip will occur if the feature is enabled.

The element operates in both online and offline conditions. This element can be used as a backup feature to other protec

tion elements. In situations where generators are connected in parallel this element would be set above the maximum cur

rent contribution from the generator on which the protection is installed. With this setting, the element would provide proper

selective tripping. The basic operating time of the element with no time delay is 50 ms at 50/60 Hz.

The XU D194 overvoltage elements may be used for protection of the generator and/or its auxiliary equipment during prolonged

overvoltage conditions. They are always active (when the generator is offline or online). The alarm element is definite time

and the trip element can be either definite time or an inverse time curve. When the average of the measured phase-phase

voltages rises above the pickup level x the generator rated phase-phase voltage, the element will begin to time out. If the

time expires, a trip or alarm will occur. The reset rate is a linear reset time from the threshold of trip. The pickup levels are

insensitive to frequency over the range of 5 to 90 Hz.

The Volts/Hertz elements may be used generator and unit transformer protection. They are active as soon as the magni

tude and frequency of Vab is measurable. The XU D194 alarm element is definite time; the trip element can be definite time or a

curve. Once the V/Hz measurement Vab exceeds the pickup level for the specified time, a trip or alarm will occur. The reset

rate is a linear reset time from the threshold of trip and should be set to match cooling characteristics of the protected

equipment. The measurement of V/Hz will be accurate through a frequency range of 5 to 90 Hz. Settings less than 1.00

only apply for special generators such as short circuit testing machines.

Why are the prices of many products of our company more competitive?
(1) Source purchase to reduce the price difference in the intermediate phase
(2) Stable channel and more guaranteed supply
Lead time problem
(1) For the spot products in stock, the delivery can be arranged on the same day after the contract payment is signed
(2) Order products and deliver according to the quoted delivery date
Xiamen Xiongba adheres to the enterprise philosophy of “improving the value of spare parts supply chain”,
For the simple purchase procedure of spare parts, ensure that they are delivered to the site in a timely manner, and help users reduce the risk of downtime caused by the shortage of spare parts
The emergency spare parts support service is complete, and the user can customize the spare parts. The quality of the spare parts is reliable. All the spare parts provided enjoy a one-year super long warranty
Spot stock, fast response, reduce user capital investment, improve spare parts utilization, spare parts replacement!

Details: If you need urgent delivery orders, please feel free to contact us, and we will try our best to meet your needs.
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