Powering Life for Modern Humanity

MEA-Series 2.4kV-38kV Metal Enclosed/Clad Draw-Out Vacuum Circuit Breaker Switchgear

2.4kV, 4.16kV, 6.6kV, 7.2kV, 11kV, 12.47kV, 13.2kV, 13.8kV, 22kV, 27kV, 34.5kV, 38kV Paralleling, Transfer, & Distribution Full Depth Draw-out Circuit Breaker Switchgear

SAFE SMART SERVICEABLE SECURE SWITCHGEAR

This complete line of 5kV – 15kV indoor and outdoor switchgear is the ultimate in flexibility and has options available to meet virtually any power system needs.

Medium Voltage Metal Enclosed Switchgear

Product Features

Metal enclosed/clad type draw-out circuit breaker-based design
Drawout Vacuum Circuit Breaker with Test, Disconnected, and Connected positions
Silver plated copper line and load bus bar connections
Voltage Transformers (Fixed or Drawout Mounted)
Current Transformers are Front Accessible, mounted on the primary insulating bushings behind the metal automatic shutters
Enclosure includes hinged front door with knurled screws
Designed & built to ANSI C37.20.3

Optional Features

Automatic Transfer (ATS), Open & Closed Transition Transfer
Main Bus
Power Metering
Protective Relaying
Main-Tie-Main Control
- Configurations with multiple Main and multiple Tie circuit breakers
Generator Paralleling
- Automatic paralleling of multiple generators for Prime Power, Co-Generation, and Peak Shaving applications
Automatic paralleling of dissimilar prime movers such as:
- Gas turbines
- Diesel engines
- Natural gas reciprocating engines
- Landfill and digester gas reciprocating engines
- Combustion turbines
- Synchronous and induction generators
- Inverter based systems
- Motor-generators
- Wind and solar driven generators
Communication
Incorporation of any size dry type transformers
Seamless load transfer between power sources
Solid, low impedance and high impedance grounded systems
Heavy skid mounted switchgear and substations
Provisions for maintenance grounding of the feeder cables
Web enabled, remote monitoring and control
Remote access switchgear control line-ups for ultimate operator safety

Specifications

Voltage

2.4kV – 38kV, 3 Phase, 3 Wire

Main Bus Amperage

1200A, 2000A, 3000A

Enclosure

NEMA 1 for Indoor Use
NEMA 3R for Outdoor Use (Non Walk-In)
Outdoor Walk-In PwrHouse

Dimensions

36″W x 80″H x 72-92″D (Each Section)

Medium Voltage Metal Enclosed Switchgear

Vacuum Circuit Breakers (VCBs)

High performance, robust, draw-out removable breakers
Integral manual charging handle
Mechanical interlocks prevent withdrawal or insertion of the circuit breaker when main contacts are not open
Closing springs automatically discharge before moving the circuit breaker out of the enclosure
Circuit breaker cell mechanism maintains trip during insertion or withdrawal
Breaker cannot be electrically or mechanically closed when in the intermediate position
Cells are keyed to ensure only correct breaker rating can be installed in cell
High-speed operation – complete fault clearing in less than 3 cycles
Hermetically sealed vacuum interrupters protect contacts from corroding elements and contamination
Easy maintenance with contact wear indicator is provided on the vacuum interrupter moving stem
Periodic visual inspection with a feeler gauge is required to verify that the contacts have not worn out

Medium Voltage Metal Enclosed Switchgear Accessories

Electric Racking Device

Installed onto switchgear section circuit breaker racking mechanism
Devices from the TEST/DISCONNECT position to the CONNECTED position in the circuit breaker cell
50 ft. (15.2 m) long cord to allow for remote racking from a distance. This makes operator safety the top priority
Requires 120VAC customer supplied control power within the switchgear installation area; may require extension cord

Wall-Mountable Circuit Breaker Test Cabinet

Tests the circuit breaker for proper operation when removed from the circuit breaker cell
Compact wall-mountable design; requires customer supplied switchgear control power input
On-off toggle switch, power-on indicating light, breaker position indication lights, CLOSE & OPEN push buttons
8 ft. (2.4 m) cable with connection plug for secondary connection receptacles at the rear of the circuit breaker

Hinged Rear Doors &
Infrared (IR) Viewing Windows

IR Windows can measure temperature without removing the sheet metal cover on the panel
IR Window Ports include removable covers for maintaining “Hot Spot” Inspection in the breaker compartment
IR Windows come with an outside infrared camera
Inner removable sheets provided for easy connection
Hinged Rear Doors come with a padlock

24VDC Switchgear Battery Charger

Charges for 24VDC Control Power Batteries for all Switchgear System Ratings
- Low Voltage: 208V-690V (3Ø)
- Medium Voltage: 2.4kV-38kV (3Ø)
Automatic three stage charging
Adjustable current limit
Dual purpose battery charger and power supply can be used simultaneously
Automatic or Manual boost and storage charge functions help maintain battery condition
Digital Microprocessor Technology
Temperature compensation for battery charging
Low Output Ripple and superb line regulation
AC input Under/Over voltage Protection
Battery charger output over voltage/ current protection
Output short circuit and Inversion polarity with auto recovery
Automatic power de-rating at high ambient temperatures
Check out more features here