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Supplier: Radwell International
Description: CW AUTOTRANSFORMER, METAL HALIDE BALLAST, PULSE START, CAPACITOR, IGNITER, BRACKET KIT, 480 VAC, 60 HZ. FREE 2 YEAR RADWELL WARRANTY
- Maximum Primary Voltage Rating: 480 volts
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Supplier: Radwell International
Description: DISCONTINUED BY MANUFACTURER, CORE & COIL BALLAST, CW AUTOTRANSFORMER, 120/208/240/277 V, 300W. FREE 2 YEAR RADWELL WARRANTY
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Supplier: Radwell International
Description: PHILLIPS, 74P3003-011-P, 74P3003011P, H.I.D LAMP BALLAST, CW AUTOTRANSFORMER, THERMALLY PROTECTED, 120V, 60HZ, 1.80AMP. FREE 2 YEAR RADWELL WARRANTY
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Supplier: Radwell International
Description: DISCONTINUED BY MANUFACTURER, METAL HALIDE PULSE START, 120/208/240/277 VOLTS, 60HZ, CW AUTOTRANSFORMER, CORE & COIL BALLAST. FREE 2 YEAR RADWELL WARRANTY
- Lamp Type: Incandescent Lamps
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IEEE Recommended Practice for Electric Power Systems in Commercial Buildings
However, they are also characterized by poor lumen maintenance especially on constant wattage ( cw ) and constant wattage autotransformer (CWA) ballasts .
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Max Tech and Beyond: High-Intensity Discharge Lamps
MV lamps may use a reactor (RX) ballast, a high-reactance autotransformer (HX) ballast, a constant wattage autotransformer (CWA) ballast , or a constant wattage isolated transformer ( CW ) ballast.
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IEEE Recommended Practice for Energy Management in Industrial and Commercial Facilities
Ballast type High reactance regulated (regulated lag Constant wattage autotransformer (CWA) Constant wattage regulated ( CW .
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Standard Handbook for Electrical Engineers, Sixteenth Edition > HIGH-INTENSITY DISCHARGE LAMPS
Constant-wattage types of the autotransformer or isolated-secondary design are widely used because of better regulation … Heavier wiring, oversized circuit breakers, and time-delay relays that may be required by the relatively high starting currents of non- CW and non-CWA ballasts are eliminated with stabilizing ballasts, as the starting current is less than the rated operating current.
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Effects of power line voltage variations on different types of 400-W high-pressure sodium ballasts
When operated with an autotransformer , nonregulating ballasts can be configured for different system voltages, but they have no voltage regulation. … constant-wattage auto-regulator (CWA), the constant-wattage isolated (CWI) wiring, or the constant-wattage ( CW ) ballast.
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Applying HID high-pressure sodium lamps in a variable-voltage environment
When operated with an autotransformer , non-regulating ballasts can be configured for different system voltages, but they have no voltage regulation. … CWA (constant-wattage auto-regulator), the CWI (constant- wattage isolated wiring), or the CW (constant- wattage) ballast.
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American Electricians' Handbook, Sixteenth Edition > HIGH-INTENSITY-DISCHARGE LAMPS
The regulator ballast, also referred to as the constant-wattage ( CW ) or stabilized ballast , has primary and secondary windings electrically isolated from each other. Autoregulator ballasts combine an autotransformer with the regulator circuit.
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IEEE Recommended Practice for Energy Conservation and Cost-Effective Planning in Industrial Facilities
Ballast Type High Reactance Autotransformer CW -4 .