CUSTOM
SOLUTIONS
34.5kV Dead-Front
Pad-Mount Switchgear, C1220
329 Williams Street, Bristol, VA 24201 • (276) 466-8200, FAX (276) 645-8212 • www.electro-mechanical.com
PRODUCT
DATA
SHEET
ISO9001:2008 REGISTERED
This document contains proprietary information of Electro-Mechanical Corporation or its operating divisions in whom title remains. Any reproduction, distribution, disclosure or use
not otherwise expressly approved in writing is strictly prohibited.
© 2015 Electro-Mechanical Corporation
CUSTOM
SOLUTIONS
34.5kV Dead-Front
Pad-Mount Switchgear, C1220
PRODUCT
DATA
SHEET
Application
Wind farm.
35kV, 150kV BIL, Dead Front, Air Insulated, Stainless Steel Pad-Mounted Switchgear to include:
One - 3-pole 600 amp group operated AutoJet® II Load Interrupter Switch air insulated disconnect switch arranged
with 600 amp bushings for connection of 600 amp dead-break elbows (not included) and three (3) 200 amp bushing
wells for connection of 200 amp load-break inserts and elbows (inserts and elbows not included)
Two -3-phase bus termination compartments arranged with 600 amp bushings for connection of 600 amp dead-break
elbows (not included) and three (3) 200 amp bushing wells for connection of 200 amp load-break inserts and
elbows (inserts and elbows not included)
One - 38kV vacuum circuit breaker, Siemens 38-3AHS-31-1200A, or equal.
One - SEL-751A over-current relay for fault protection on the vacuum circuit breaker, with conformal coating for corrosion
resistance.
One - Fused, stationary mounted, potential transformer for control power, connected line-to-line
One - Uninterruptable power supply, Schweitzer SEL-UPS, or equal
One - Key interlocks between the air break switch and the circuit breaker
One - 12” Non-compartmented, stainless steel, base spacer to increase termination height.
Characteristics (all three items):
Switch Ratings
Voltage..............................38 kV Frequency........................60 HZ
BIL.....................................
150 kV
Bus Rating........................600 Amps
Bus Type ......................... Silver Plated Copper
Insulators.........................Cycloaliphatic Epoxy
Switch Continuous......... 600 Amps
Interrupting...................... 600 Amps
Momentary ..................... 40,000 Amps RMS ASYM Fault Close ...................... 40,000 Amps RMS ASYM
Short Circuit..................... 25,000 Amps RMS SYM
Vacuum Circuit Breaker Interrupter Ratings
Voltage ........................... 38 kV Frequency...................... 60HZ
BIL................................... 150 kV
Continuous .................... 1200 Amps
Impulse Level................ 80 kV
Fault Interrupting ......... 20,000 Amps RMS SYM
Close and Latch............ 50 kA RMS ASYM
Close and Latch............ 85 kA Peak
329 Williams Street, Bristol, VA 24201 • (276) 466-8200, FAX (276) 645-8212 • www.electro-mechanical.com
ISO9001:2008 REGISTERED
This document contains proprietary information of Electro-Mechanical Corporation or its operating divisions in whom title remains. Any reproduction, distribution, disclosure or use
not otherwise expressly approved in writing is strictly prohibited.
© 2015 Electro-Mechanical Corporation
Construction:
Finish: ANSI 61
Space Heaters with Thermostat
Approximate Dimension: 70”H (without base spacer) x 115”W x 102”D
Approximate Weight: 4,800 pounds
Specification Comments/Clarifications
1. Medium Voltage Switches are per IEEE std.C37.20.22 and IEEE std.C37.20.4 in lieu of IEC60265-1.
2. Medium voltage circuit breakers are per IEEE C37.06 in lieu of IEEE C37.60.
3. Surge/lightning arresters are not available as an integral part of the dead front switchgear. If arresters must be used,
it is best accommodated through the 600 amp elbow systems by Cooper, Elastimold, etc. furnished by others.
4. Elbows and inserts are to be provided by others.
5. Concrete and/or fiberglass pedestals are the responsibility of others.
6. Grounding is accomplished using grounding elbows, which are to be provided by others
Special Considerations
1. Providing an all stainless steel enclosure and internal parts (or non-ferrous) hardware, except switch frame and all
current-carrying parts.
2. Including a 12” non-compartmented, stainless steel base spacer to increase termination height. If another size base
spacer is required, contact factory for a revised proposal.
Approval Drawing: 2-3 Weeks
Production Lead Time: 16-18 Weeks
329 Williams Street, Bristol, VA 24201 • (276) 466-8200, FAX (276) 645-8212 • www.electro-mechanical.com
ISO9001:2008 REGISTERED
This document contains proprietary information of Electro-Mechanical Corporation or its operating divisions in whom title remains. Any reproduction, distribution, disclosure or use
not otherwise expressly approved in writing is strictly prohibited.
© 2015 Electro-Mechanical Corporation