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Capswitcher – Southern States 15.5 kV-38 kV CapSwitcher User Manual

Page 3

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Title: Southern States 15.5 kV - 38 kV

CapSwitcher

®

Vertical Interrupter Style Capacitor Switcher

Product Specification

Guide

Page 3 of 8

Publication No.: PSG-809-101714

3.02 Ratings

3.02.01 General Specifications

Rated Maximum Voltage

15.5 kV

27 kV

38 kV

Rated Power Frequency Withstand
Voltage

50 kV

60 kV

80 kV

Rated Lightning Impulse Withstand
Voltage (BIL)

110 kV

150 kV

200 kV

Rated Power Frequency

50/60 Hz

Rated Continuous Current

600 A

Short Circuit Making Current

40 kA RMS

Peak Withstand Current

104 kA

Short-Time Symmetrical Withstand

40 kA RMS 2 sec

Rated High-Frequency Transient-
Making Current / Transient Inrush
Frequency

42 kA peak / 8100 Hz

Rated Short Circuit Interrupting
Current

N/A

Rated Duty Cycle

Close Time (ms) – C – 6 cycles – O – 15 sec

Voltage Close Time (ms) Variation (ms)

120 VAC

44

+/- 9

125 VDC

44

+/- 1

48 VDC

55

+/- 3

(Capacitor bank must be discharged to below 10%

before closing is allowed.)

CAPACITOR SWITCHING RATINGS (IEEE C37.09a-2005)

Rated Capacitive Switching Current

600 A

Back-to-Back Capacitor Bank
Breaking Current

600 A

Rated High-Frequency Transient-
Making Current / Transient Inrush
Frequency

23 kA peak / 5400 Hz

Capacitive Discharge Withstand

33 kA Peak @ 63 kHz

Resistor Value

See Table in 3.03.01

Pre-insertion time 5-12 ms