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Power-Tronics SE350 Manual

Static exciter module
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Specifications
Input Voltage:
Frequency:
Output Voltage:
Maximum Continuous Output:
Maximum Forcing Output:
Minimum Field Resistance:
Physical Size:
Weight:
Repairable:
© 2014 Power-Tronics, Inc.
120 / 208 or 240vac
N/A
0-52vdc @ 120vac input
0-105vdc @ 240vac input
25adc
30adc
2.1Ω @ 52vdc output
4.1Ω @ 105vdc output
3.25 x 3.50 x 4.75 in.
8 oz
Yes
SE350
Static Exciter Module
The Power-Tronics SE350 Static Exciter
Module is a self-contained external
rectifier assembly for all Power-Tronics XR
and UVR series voltage regulators. The
SE350 Static Exciter Module allows a
standard Power-Tronics voltage regulator
to control exciter fields with current
requirements up to 25 amps DC at
105VDC!
The SE350 is a unique design, intended to
sit on top of the voltage regulator to
simplify installation and reduce installation
space. Because of it's unique modular
design, it reduces the need to stock
special voltage regulators for higher
current exciter fields, reducing the amount
of products needed to be kept in stock and
vastly simplifying voltage regulator
replacement!
The SE350 is a very robust design and is
intended to operate for a lifetime.
However, should repair ever be
necessary, the SE350 is extremely simple
to repair, minimizing downtime!
The SE350 is also capable of operating in
a tandem condition with 2 SE350 modules
connected to a single voltage regulator for
exciter fields requiring up to 50 amps DC
at 105VDC continuous!
The SE350 Static Exciter is compatible
with all Power-Tronics UVR, XR, and
certain older VR series voltage regulators,
as well as the Power-Tronics PC500X,
UVR500PC, and XR500PC phase
controllers!

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Summary of Contents for Power-Tronics SE350

  • Page 1 The SE350 is a very robust design and is intended to operate for a lifetime. However, should repair ever be Specifications...

  • Page 2: Table Of Contents

    Hookup Connection C:....................8 Hookup Connection D:....................9 Initial Setup and Commissioning:................10 Parallel Configuration for Connection A & B:............11 Parallel Configuration for Connection C & D:............12 Optional Power-Tronics Add-On Modules:..............13 Application Troubleshooting:..................14 Bench Check Procedures:...................15 Installation Warranty Form:..................16 Product Warranty Certificate:..................17 © 2014 Power-Tronics, Inc.

  • Page 3: Introduction And Functional Description

    (It can give a false reading!) Functional Description The SE350 Static Exciter Module has a proven track record of over 20 years of extreme reliability and robustness. It offers an inexpensive and unique way to upgrade a standard voltage regulator to a miniature static exciter with a minimum of connections and a minimum of installation space.

  • Page 4: Determining Which Hookup Configuration To Use

    It contains the most up to date information available regarding your product! The SE350 Static Exciter Module is capable of being connected several different ways to accommodate a wide variety of generator exciter configurations. It is necessary to choose the proper mode of operation for your generator in order to get the best regulation and fastest response time possible.
  • Page 5 R is your measured field resistance. Using the values you just measured and calculated, see the chart on the previous page to determine which connection you should use to connect the SE350 to your generator. © 2014 Power-Tronics, Inc.

  • Page 6: Hookup Connection A

    For use on 480V systems, either connect the SE350 to the winding center taps T7 and T9 or use a 480-240V step-down transformer. Connecting the input of the SE350 to 2 different legs of the generator as shown in the diagram below will result in greater regulation accuracy than when connecting line- neutral.

  • Page 7: Hookup Connection B

    For use on 480V systems, either connect the SE350 to the winding center taps T7 and T9 or use a 480-240V step-down transformer. Connecting the input of the SE350 to 2 different legs of the generator as shown in the diagram below will result in greater regulation accuracy than when connecting line- neutral.

  • Page 8: Hookup Connection C

    32V fields) and on brushless generator fields where the full-load excitation voltage is 32VDC or less and the exciter field current is between 5 and 25ADC. Note that the maximum input voltage to the SE350 Static Exciter Module in this configuration is 139VAC!

  • Page 9: Hookup Connection D

    32V fields) and on brushless generator fields where the full-load excitation voltage is 32VDC or less, but the exciter field current is between 25 and 50ADC. Note that the maximum input voltage to the SE350 Static Exciter Module in this configuration is 139VAC!

  • Page 10: Initial Setup And Commissioning

    Initial Setup and Commissioning Install the regulator and SE350 module and wire up to the correct wiring diagram (Connection A, B, C, or D). If installing the SE350 on a brush-type generator, verify that the brushes and brush riggings are isolated, ungrounded, and connected ONLY to the SE350.

  • Page 11: Parallel Configuration For Connection A & B

    Parallel Configuration for Connection A & B To use the SE350 Static Exciter Module in a parallel configuration either with another generator or with a buss such as a utility, use the diagram below for proper hookup with the SE350 configured for Connection A or B.

  • Page 12: Parallel Configuration For Connection C & D

    Parallel Configuration for Connection C & D To use the SE350 Static Exciter Module in a parallel configuration either with another generator or with a buss such as a utility, use the diagram below for proper hookup with the SE350 configured for Connection C or D.

  • Page 13: Optional Power-Tronics Add-On Modules

    Optional Power-Tronics Add-On Modules Power-Tronics offers a wide array of optional add-on modules for the SE350 Static Exciter Module from automatic flashing modules to digital interface cards. For more information on any of the modules below, visit our online catalog at: www.power-tronics.com...

  • Page 14: Application Troubleshooting

    16. Isolation transformer is too small. 17. Isolation transformer is needed. 18. Exciter fields are not isolated from other circuits. 19. Input and field circuit are being fed by a common cable or conduit. 20. Incorrect hookup or wiring. © 2014 Power-Tronics, Inc.

  • Page 15: Bench Check Procedures

    Connect a 1000Ω resistor to the red wire on the SE350. Input 120VAC fused at no more than 5A into the SE350. The test light should be OFF. Touch the 1000Ω resistor connected to the red wire to the AC1 terminal. The test light should light to HALF Brightness.

  • Page 16: Installation Warranty Form

    It is very important that you fill out this form completely when installing a voltage regulator. This form serves as a history record on the application. This form also contains the information needed by Power-Tronics, Inc., for repair and troubleshooting of any product you may be having problems with.

  • Page 17: Product Warranty Certificate

    These problems should be protected with external devices provided by the customer such as fuses, surge suppressors, over/under voltage and frequency controls. Power-Tronics, Inc., warranties only parts and workmanship of this product for a period of 2 years from the original date of purchase from Power-Tronics, Inc. Under warranty, Power- Tronics, Inc.

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