Industrial Systems – Distribution
Protective GE Capacitors for AC Rotating Machines
Surge Protection for AC Generators, Synchronous Condensers and Large Motors
GE Protective capacitors offer surge protection for AC generators, synchronous condensers and large motors.
DIELEKTROL is the GE non-PCB power capacitor dielectric system, developed to provide an environmentally acceptable product with superior performance and reliability.
Protective capacitors contain a film dielectric and hermetically sealed bushings, which permit mounting of capacitors in an upright position or on the side. GE Surge Capacitors protect the winding insulation by reducing the steepness of wave fronts applied to or reflected within the machine windings.
Features and Benefits
- Surge protection for AC Generators, synchronous condensers and large motors
- Time proven GE HAZY film foil dielectric system
- DIELECTROL Non-PCB insulating fluid
- Provides Turn-to-Turn insulation protection by reducing steepness of wave fronts applied to or reflected within the machine
- Used in combination with TRANQUELL station arresters for optimum protection
- Protective capacitors contain a film dielectric and hermetically sealed bushings, which permit mounting of capacitors in an upright position or on the side.
- Altitude: 0 to 18,000 feet
Fixed Motor and Pump Capacitors (Type GEM OFW)
Outdoor Weatherproof, 1-15 kVAR 240 Volts, 1-30 kVAR 480 Volts, Three-phase Delta, 60 Hertz
These Type GEM capacitors are designed primarily for the motor requirements of oil field and other pumping installations. Their application, however, may be extended to other motor applications installed indoor or outdoor. Type GEM OFW capacitors feature multiple cells which are assembled in parallel in a NEMA 3 enclosure. Each capacitor cell features the patented GE Pressure Sensitive Interrupter (PSI) that protects against cell rupture. The metallized polypropylene film dielectric system provides an instantaneous self-healing action and greatly reduced energy losses.
Discharge resistors are included to reduce voltage to 50 volts or less within one minute of de-energization. A 4 ft., 4-conductor flexible cable is provided for easy installation.
Type GEM capacitors offer high reliability and long life. They are suitable for operation over a temperature range of –40°C to +46°C. GEM also features Dielektrol impregnant which is a biodegradable Class IIIB combustible fluid.
Fixed Low Voltage Power Factor Correction Capacitors
Enclosed Indoor Dustproof NEMA 12 and Outdoor Weatherproof NEMA 3
Single Phase or 3-Phase, 1.0-500 kVAR, 60 Hertz, 240, 480, 600 Volts
Type GEM Capacitors feature multiple cells which are assembled in parallel in an enclosure suitable for both indoor and outdoor applications, (NEMA 12 and NEMA 3). Each capacitor cell features the patented GE Pressure Sensitive Interrupter (PSI) that protects against cell rupture. The metallized polypropylene film dielectric system provides an instantaneous self-healing action and greatly reduced energy losses. GEM capacitors include discharge resistors to reduce voltage to 50 volts or less within one minute of de-energization. GEM also features Dielektrol impregnant which is a biodegradable Class IIIB combustible fluid.
GEM capacitors offer high reliability and long life. They are suitable for operation over a temperature range of –40°C to +46°.
The GEM assemblies are UL Listed and CSA labeled.
Automatic Fast-Switching LV Power Factor Correction Capacitors
GEMATIC Quick Response
Fast Response, Transient-Free Reactive Power Compensation Systems
- Ultra Fast Response (UFR): A real-time, transient-free system used
to compensate extremely rapid loads within one cycle (typically
- Fast Response (FR): A fast, transient-free system, used to compensate
any load within 3-4 seconds.
- Ultra Fast Response (UFR) and Fast Response (FR):
- Transient-free capacitor group switching, using electronic switching elements
- Prevent damage to sensitive electronic equipment
- Saves energy
- Harmonic filtration
- Accurate power factor control, even in the presence of harmonics
- Dramatically increases the life expectancy of switching elements and capacitors
- Considerably lower temperature rise of capacitors and inductors due to unique scan feature
- Built-in three phase network analyzer, measuring all network parameters including harmonics
- Unique self-testing and comprehensive reporting feature
- Power IQ
- Ultra Fast Response (UFR) (in addition to the above):
- Cycle-by-cycle reactive power compensation (total acquisition time of 5-16 mSec)
- Prevents voltage drop and flickering
- Used for Real Time applications, such as spot welding and motor start-up
- Enhances capacity of local generator systems, such as diesel and windmill generators
- Combination of one to three single-phase systems available for unbalanced loads
Automatic LV Power Factor Correction Capacitors
Type GEMATIC Compact and GEMATIC Select, Three-phase, 60 Hertz, 240, 480, 600 Volts
GEMATIC multi-step power factor control equipment automatically maintains desired power factor level, adjusting to system load requirements in selected kVAR steps. The solid-state control responds to a current signal from the optional current transformer and to a voltage signal from a potential transformer included in the equipment.
GEMATIC equipments feature capacitors with a metallized dielectric system providing a self-healing action and reduced energy losses. The biodegradable impregnant is a class IIIB combustible fluid. Discharge resistors reduce the voltage to 50 volts or less within one minute of de-energization. The capacitor cells are 3 phase and are designed for 110% of rated voltage, 135% of rated current, and, 135% of rated kVAR.
The power factor controller requires a CT signal for operation. The CT primary should be sized for the total phase current to be compensated (capacitor current and load current). Typically, the total phase current should be 50% to 80% of the CT primary rating. The CT secondary is rated 5A. The CT is connected to one phase of the equipment and the factory installed PT is connected across the other two phases.
Fixed MV Power Factor Correction Capacitors
Enclosed Indoor Dustproof and Outdoor Weatherproof, 25-900 kVAR, 60 Hz, 2400, 4160, 4800 Volts, 1.0-200 kVAR, 240 Volt
Type HWT equipments are suitable for use on indoor or outdoor primary circuits where small amounts of kVAR are required. They may be installed at load centers or directly at the terminals of 2300 and 4000 volt motors. Permissible ambient temperatures are –40° to +45°C. Discharge resistors in each capacitor reduce the voltage to 50 volts or less within 5 minutes of de-energization.
Type HWT equipments contain less than three gallons of flammable liquid in a single container and therefore do not require installation in a vault to meet the NEC.
High Voltage Capacitor Units, Single and Three-Phase
(Film/Foil Designs w/Dielektrol), 50-600 kVAR, 60 Hertz, 2400-24,940 Volts
Film/Foil Dielektrol is the GE non-PCB low loss power capacitor dielectric system, developed to provide lower operating costs and greatly enhanced fuse coordination for the prevention of case ruptures. The Dielektrol insulating liquid is a Class IIIB combustible fluid.
- These capacitors are designed to meet ANSI Std 18.
- CSA labeling available upon request.
High Voltage Pole-Mounted, Open Stack-Rack and Metal Enclosed Equipment
Pole-type Equipment, 150-3600 kVAR, 60 Hertz,
Open Stack-rack Banks, 1200 kVAR and above, 60 Hertz
Metal Enclosed, 2.4 through 38kV, 150 kVAR and above
Pole Mounted Equipment Description
These equipments are pre-wired, factory assembled, and shipped ready for pole installation with single-phase units. Racks are of welded structural aluminum and are suitable for mounting switches and junction box and cable assembly. Lightning arresters and/or potential transformers can also be mounted.
Open Stack-Rack Equipment Description
This application is most popular for large blocks of three-phase Kilovar. Capacitor units and individual fuses are installed in welded aluminum racks, either upright or edgemount. Racks are shipped ready for field installation with base and inter-rack insulators, substructure, interconnecting bus wire and other accessories for a three-phase equipment.
Metal Enclosed Equipment Description
These power factor correction equipments are metal enclosed for indoor and outdoor installations. These banks can be located on a distribution feeder as a small padmount or at the workstation site.Banks are shipped ready for installation. Banks can be provided with the following options: oil or vacuum switching, automatic control and protection, stainless steel housing, custom colors, key mechnical or electrical interlocks, capacitor removal device, NEMA 1, 3R, 4, 4X or 12 enclosures.