T - Load Break Switchgear with Integral Ground

G&W Electric T padmount and vault switchgear features load break switching capability with visible break and integral ground position in a totally sealed, dead front device. The integral ground position eliminates the need to handle any high voltage connections to ground the cable. The switches are designed for use on 3-phase systems with voltages up to 38kV, 630A load break and continuous current, and 40kA asymmetrical momentary ratings. They feature front access construction with switch operators on the front side and bushings on the front, top or rear side of the switch. The bushings are arranged in a straight line on the switch tank so that all the bushings are at the same height.

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

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Features and Benefits

Configuration Chart for T
# of WaysOne-line Diagram (Horizontal)Voltage Class (kV)Mom. (kA asym)Catalog Number
Approximate
Width* in. (mm)Wt. w/SF6 lbs (kg)
2
1540T21-376F-40RP45 (1143)1400 (636)
25T21-386F-40RP
35T21-396F-40RP
3
1540T33-376F-40RP60 (1524)1600 (714)
25T33-386F-40RP
35T33-396F-40RP
4
1540T44-376F-40RP75 (1905)2100 (953)
25T44-386F-40RP
35T44-396F-40RP
5
1540T55-376F-40RP90 (2286)2300 (1044)
25T55-386F-40RP
35T55-396F-40RP
6
1540T66-376F-40RP105 (2667)2750 (1250)
25T66-386F-40RP
35T66-396F-40RP
Approximate Enclosure Depth: 51.0" (1448mm).
Approximate Height: 49.0" (1245mm)
Ratings Chart for T
Voltage Class15kV25kV35kV
Maximum Design Voltage15.5kV27kV38kV
Impulse Level (BIL)110kV125kV150kV
One Minute Withstand35AC kV60AC kV70kV
One Minute Withstand, Protection Test Rating34AC kV40AC kV50kV
15 minute withstand53DC kV78DC kV103kV
Continuous and load break current630 Amps630 Amps630 Amps
Momentary current40kA asym40kA asym40kA asym
Fault-close current (3 times)32kA asym32kA asym32kA asym
One second current25kA sym25kA sym25kA sym
Mechanical endurance, operations200020002000

For Accessories and additional options see full catalog.

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Specifications

T Specification

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