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Gas Insulated Switchgear
PVI – Load Break Switching & Fault Interrupting

PVI - Load Break Switching & Fault Interrupting

G&W Electric model PVI padmount switches include load break and fault interrupting capability. The fault interrupters provide electronically controlled, resettable over current protection in a totally sealed, dead front device. The PVI can be configured to provide 1-phase or 3-phase operation of the fault interrupting ways. The switches are designed for use on 3-phase systems with voltages up to 38kV, 630A load break, and continuous current, with 12.5kA and 20kA symmetrical fault interrupting ratings. The PVI is one of G&W Electric’s most versatile switch styles because it can be ordered with front accessible switch operators and bushings (front access) as well front and back access switch to replace existing pad mount air gear installations.

The switches are designed to IEEE C37.72, C37.74, and C37.60 for load break and fault interrupting capability. Padmount enclosures are designed and tested to IEEE C57.12.28 and C57.12.29.

Features and Benefits

  • Construction – Available with front accessible switch operators and bushings or with front and back operators and bushings for replacement of existing pad mount air or oil insulated equipment. Vault construction is also available with top or bottom bushings or top access to operators and bushings.
  • Visible Break – Load break ways are equipped with visible break to view the open and closed positions.
  • Fault Interrupting – Single or three phase fault interrupting up to 20kA with selectable industry curves including fuse emulation curves. Operating handles can be configured for single or three phase manual operation.
  • Voltage Sensing – Load break ways are available with integral voltage sensing for use with voltage indication panel to determine in-phase condition or for use with a relay with up to 1% accuracy.
  • Automation – Available for motor automation with portable or permanently mounted motor and controls. A variety of relays such as SEL, ABB, and GE are available with G&W Electric programming and cabinet construction. Cabinets can be ordered in a low voltage enclosure for padmount, pedestal or IP68 rated submersible for vault installed switchgear. Programming for automatic source transfer, or LaZer custom solutions are available.
Configurations Chart for PVI Front Access

# of WaysOne-line Diagram (Horizontal)Voltage Class (kV)Catalog NumberApproximate
Width* in. (mm)Wt. w/SF6 lbs (kg)
4F15PVI20-376-12-4F47.5 (1207)1500 (682)
25PVI20-386-12-4F
35PVI20-396-12-4F
5F15PVI21-376-12-5F47.5 (1207)1500 (705)
25PVI21-386-12-5F
35PVI21-396-12-5F
6F15PVI32-376-12-6F62.5 (1588)1920 (873)
25PVI32-386-12-6F
35PVI32-396-12-6F
7F15PVI31-376-12-7F62.5 (1588)2050 (932)
25PVI31-386-12-7F
35PVI31-396-12-7F
9F15PVI42-376-12-9F77.5 (1969)2300 (1045)
25PVI42-386-12-9F
35PVI42-396-12-9F
11F15PVI43-376-12-11F77.5 (1969)2400 (1091)
25PVI43-386-12-11F
35PVI43-396-12-11F
12F15PVI41-376-12-12F77.5 (1969)2400 (1091)
25PVI41-386-12-12F
35PVI41-396-12-12F
43F15PVI43-376-12-43F-BT101.0 (2565)2700 (1227)
25PVI43-386-12-43F-BT
51F15PVI51-376-12-51F92.5 (2350)2900 (1318)
25PVI51-386-12-51F
35PVI51-396-12-51F
52F15PVI52-376-12-52F92.5 (2350)2800 (1273)
25PVI52-386-12-52F
35PVI52-396-12-52F
53F15PVI53-376-12-53F92.5 (2350)2750 (1250)
25PVI53-386-12-53F
35PVI53-396-12-53F
54F15PVI54-376-12-54F92.5 (2350)2650 (1205)
25PVI54-386-12-54F
35PVI54-396-12-53F
62F15PVI62-376-12-62F107.5 (2731)3300 (1500)
25PVI62-386-12-62F
63F15PVI63-376-12--63F107.5 (2731)3200 (1455)
25PVI63-386-12-63F
35PVI63-396-12-63F
64F15PVI64-376-12-64F107.5 (2731)3100 (1409)
25PVI64-386-12-64F
35PVI64-396-12-64F
65F15PVI65-376-12-65F107.5 (2731)3000 (1364)
25PVI65-386-12-65F
35PVI65-396-12-65F
72F15PVI72-376-12-72F104.3 (2648)3850 (1750)
25PVI72-386-12-72F
Approximate Height: 65" (1651mm), Approximate Depth = 55" (1397mm)
Bushing Height: 48" (1224mm)

Configurations Chart for PVI Front & Rear Access

# of WaysOne-line Diagram (Horizontal)Voltage Class (kV)Catalog NumberApproximate
Width* in. (mm)Wt. w/SF6 lbs (kg)
415PVI20-376-12-444.5 (1130)950 (432)
25PVI20-386-12-4
35PVI20-396-12-4
515PVI21-376-12-544.5 (1130)950 (432)
25PVI21-386-12-5
35PVI21-396-12-5
615PVI32-376-12-674
(1880)		2250 (1023)
25PVI32-386-12-6
35PVI32-396-12-6
715PVI31-376-12-774
(1880)		2250 (1023)
25PVI31-386-12-7
35PVI31-396-12-7
815PVI41-376-12-874
(1880)		2250 (1023)
25PVI41-386-12-8
35PVI41-396-12-8
915PVI42-376-12-974
(1880)		2300 (1043)
25PVI42-386-12-9
35PVI42-396-12-9
1115PVI43-376-12-1174
(1880)		2400 (1091)
25PVI43-386-12-11
35PVI43-396-12-11
1215PVI41-376-12-1274
(1880)		2400 (1091)
25PVI41-386-12-12
35PVI41-396-12-12
1415PVI42-376-12-5174
(1880)		2250 (1023)
25PVI42-386-12-51
35PVI51-396-12-51

Configurations Chart for VPVI

ModelOne-line Diagram (Horizontal)Voltage Class (kV)Catalog NumberApproximate
Width* in. (mm)Wt. w/SF6 lbs (kg)
4F15VPVI20-376-12-4F26 (660)1100 (500)
25VPVI20-386-12-4F
35VPVI20-396-12-4F35 (889)
5F15VPVI21-376-12-5F50.0 (1283)1100 (500)
25VPVI21-386-12-5F
35VPVI21-396-12-5F59.5 (1511)1210 (550)
6F15VPVI32-376-12-6F63 (1600)1300 (591)
25VPVI32-386-12-6F
35VPVI32-396-12-6F72 (1829)1500 (682)
7F15VPVI31-376-12-7F71.5 (1816)1500 (682)
25VPVI31-386-12-7F
35VPVI31-396-12-7F89.5 (2273)1800 (818)
9F15VPVI42-376-12-9F84 (2134)1700 (773)
25VPVI42-386-12-9F
35VPVI42-396-12-9F102 (2591)1950 (886)
11F15VPVI43-376-12-11F75.5 (1918)1600 (727)
25VPVI43-386-12-11F
35VPVI43-396-12-11F84.5 (2146)1750 (795)
12F15VPVI41-376-12-12F92.5 (2350)1850(841)
25VPVI41-386-12-12F
35VPVI41-396-12-12F119.5 (3035)2100 (955)
43F15VPVI43-376-12-43F105.3 (2675)1900 (862)
25VPVI43-386-12-43F
51F15VPVI51-376-12-51F113.5 (2885)2250 (1023
25VPVI51-386-12-51F
35VPVI51-396-12-51F149.5 (3797)2650 (1205)
52F15VPVI52-376-12-52F105 (2667)2100 (955)
25VPVI52-386-12-52F
35VPVI52-396-12-52F132 (33532400 (1089)
53F15VPVI53-376-12-53F96.5 (2451)1900 (862)
25VPVI53-386-12-53F
35VPVI53-396-12-53F114.5 (2908)2200 (998)
54F15VPVI54-376-12-54F87 (2210)1800 (818)
25VPVI54-386-12-54F
35VPVI54-396-12-53F96 (2438)2000 (907)
62F15VPVI62-376-12-62F126 (3200)2500 (1134)
25VPVI62-386-12-62F
63F15VPVI63-376-12-63F117.5 (2985)2300 (1043)
25VPVI63-386-12-63F
35VPVI63-396-12-63F144.5 (3670)2700 (1225)
64F15VPVI64-376-12-64F109 (2769)2200 (998)
25VPVI64-386-12-64F
35VPVI64-396-12-64F127 (3226)2400 (1089)
65F15VPVI65-376-12-65F99.5 (2527)2100 (995)
25VPVI65-386-12-65F
35VPVI65-396-12-65F108.5 (2756)2200 (998)
72F15VPVI72-376-12-72F147 (3724)2800 (1273)
25VPVI72-386-12-72F
For 15 kV and 27 kV: Approximate Height: 33" (838mm), Approximate Depth = 31" (787mm)
For 38 kV: Approximate Height: 38" (965mm) and Depth: = 31" (787mm).
Ratings Chart for PVI and VPVI

Voltage class15kV25kV35kV
Maximum design voltage15.5kV27kV38kV
Impulse level (BIL)110 kV125 kV150 kV
One minute withstand35 AC kV60 AC kV70 AC kV
One minute withstand, production test rating34 AC kV40 AC kV50 AC kV
15 minute withstand53 DC kV78 DC kV103 DC kV
Continuous and load break current630 Amps630 Amps630 Amps
Load Break Switch Momentary current40kA asym40kA asym40kA asym
Load Break Switch Fault close current, (3 times)40kA asym40kA asym40kA asym
Load Break Switch One second current25kA sym25kA sym25kA sym
Fault Interrupter Symmetrical interrupting rating12.5kA*12.5kA*12.5kA*
Load Break Switch Open gap withstand200kV200kV200kV
Load Break Switch 10 operation overload interrupting capability3000 Amps3000 Amps3000 Amps
Load Break Switch Operations load interrupting endurance at 600A120012001200
Mechanical endurance, operations200020002000
IEEE C37.60 Fault Interrupting Duty
Total number of fault interruptions: 116
Percent of Maximum Interrupting RatingNo. of Fault Interruptions
15 – 20%44
45 – 55%56
90 – 100%16
*20kA interrupting rating is available
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