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Basler Electric Voltage Regulator KR4F Wiring Diagram PDF - How to Wire and Troubleshoot Your Voltage Regulator


Basler Electric Voltage Regulator KR4F Wiring Diagram PDF - A Handy Resource for Generator Owners




If you own a generator system that uses a Basler Electric Voltage Regulator KR4F, you may want to download and print the wiring diagram PDF for easy reference. This document will help you understand how to wire and troubleshoot your voltage regulator, as well as how to control and protect your generator system.




basler electric voltage regulator kr4f wiring diagram pdf



In this article, we will give you a brief overview of the Basler Electric Voltage Regulator KR4F, its features and specifications, and where to find the wiring diagram PDF online. We will also provide some tips and tricks on how to use and maintain your voltage regulator properly. So, let's get started!


What is the Basler Electric Voltage Regulator KR4F?




The Basler Electric Voltage Regulator KR4F is a device that precisely controls the output voltage of an AC electric generating system by controlling the amount of current supplied to the exciter (or generator) field. It is designed to be compatible with any of the following accessories and equipment:


  • VAR/Power Factor Controller (SCP 250)



  • Series Boost Option



  • Current Transformers (CT2 through CT50)



  • Minimum/Maximum Excitation Limiter (EL 200)



  • Auto-Synchronizer (BE3-25A or BE1-25A)



The Basler Electric Voltage Regulator KR4F has built-in Electromagnetic Interference (EMI) filtering and an underfrequency roll-off characteristic. It also has a variable frequency compensation that can be selected as either V/Hz or 2 V/Hz.


What are the Features and Specifications of the Basler Electric Voltage Regulator KR4F?




The Basler Electric Voltage Regulator KR4F has the following features and specifications:


  • Input Power Requirements: 120 to 139 Vac (nom.), 1 , 60 Hz, 300 VA. 100 to 127 Vac (nom.), 1 , 50 Hz, 300 VA.



  • Input Sensing Requirements: 50 Hz, 1 : 100 - 110 / 220 - 230 - 240/380-400-415/500 Vac, 10%, 60 Hz, 1 : 120-139/208-240/416-480/520-600 Vac, 10%.



  • Input Sensing Burden: 10 VA per phase



  • Power Output: 2.5 A @ 63 Vdc maximum continuous. 3.5 A @ 90 Vdc 1 minute forcing (120 Vac input).



  • Field Resistance: 25 ohms minimum, 400 ohms maximum.



  • Regulation Accuracy: 1% from no-load to full-rated load and 5% frequency variation.



  • Thermal Stability: 1% voltage variation for a 40 C (104 F) change within the operating range.