Carl E. Holmes Company
CEHCO provides SCR and Diode Rectifiers for a variety of applications that includes anodizing, water treatment, general metal finishing, crane duty, electrochemical applications, and the latest development in power conversion technology.
- (714) 666-0787
(714) 624-4740 - quote@cehco.com
- 1139 N. Kraemer Place
Anaheim, CA 92806
United States of America
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Product
SCR Rectifiers
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SCR-controlled rectifiers are electronically controlled via analog signals for constant voltage and current control. The compact and service-friendly design complies with high industrial requirements and guarantees excellent operational reliability.The input voltage can be from 208 VAC to 600 VAC, 3 PH, 50/60 Hz. Maximum output voltage can be from 6 VDC to 600 VDC. Maximum output can be from 1000 Amps to 100000 Amps. These units can be air cooled, water cooled or oil cooled.
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Product
SCR CONTROLLED DC POWER SUPPLY
PS Series
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Variable DC power supplies are AC to DC power supplies with a variable DC output. The output can be varied with an SCR controller. The AC input power can be single phase or three phases. With single phase AC input, the DC output ripple is very high (50%). With three phase AC input, the DC output ripple is low (5%). This would be a key benefit for selecting three phase AC input instead of single phase.
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Product
Surge Suppressor to Suppress SCR Spikes from Customer Equipment Going Back to Utility Power, P/N 5965C
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This Suppressor Board is ideal for SCR Controlled Power Supplies when SCR control is on the primary side.The Suppressor Board will prevent SCR spikes to go back into the 480 VAC utility power lines.
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Product
5000 AMP DC Rectifier - Air Cooled, P/N 6037C1
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Air Cooled SCR Controlled Power Supply, 50 KW, P/N 6037C1Input: 480 VAC, 60 Amps, 3 PH, 60 HzOutput: 6 to 10 VDC, 5000 Amps maxContactor and overload relay are installed for protectionStart / Stop capabilityEPO capabilityManual voltage control and current limitOutput voltage and current are displayed on the voltmeter and ammeterIndoor enclosure, 68″H x 65″W x 36″DAll input/output connections are inside the enclosuresEstimated weight: 1000 lbs.
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Product
SCR, Diodes & Assemblies
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SCR and Diodes are available as assemblies or discrete parts. Most assemblies are encapsulated. CEHCO stocks a variety of rectification products such as Diodes, SCR’s (silicon-controlled rectifiers), and Encapsulated Assemblies. We SCR and diodes replacement specialist. We specialize in obsolete and hard-to-find SCR and diode assemblies. We can offer an equivalent replacement for most obsolete rectification devices.
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Product
IGBT Power Supply, 120 KW, 0 to 16 VDC, 7500 AMPS, P/N 6132C
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IGBT Power Supply, 120 KW, P/N 6132CInput: 480 VAC, 3 PH, 60 HzOutput: 0 to 16 VDC, 7500 AmpsRipple does not degrade when the output voltage is reducedDigital remote with Voltmeter and Ammeter and potentiometers includedDimensions: 20.00”W x 67”H x 24.5”D.Estimated weight: 600 lbs.
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Product
Variable Transformer DC Power Supplies
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Variable DC power supplies are AC to DC power supplies with a variable DC output. The output can be varied with a Variable Transformer (also known as variac). The Variable Transformer can be adjusted manually or with a motorized control. The AC input power can be single phase or three phases. With single phase AC input, the DC output ripple is very high (50%). With three phase AC input, the DC output ripple is low (5%). This would be a key benefit for selecting three phase AC input instead of single phase.
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Product
MRI POWER SUPPLIES
MRI Series
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Input: 208 VAC ± 5 %, 3 PH, 60 Hz Output: 120 VDC fixed, 20 Amps Power: 2.4 KW Ripple: 5 % Enclosure: NEMA 1(20″ H x 16″ W x 9″ D) Weight: 125 lbs
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Product
Rotating Diode Assembly, P/N 6118CA
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CEHCO is a specialist in the repair of Rotating Diode Assemblies.
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Product
Anodizing/Electroplating/Metal Finishing DC Rectifiers
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CEHCO can supply Anodizing / Electroplating / Metal Finishing DC Rectifiers. We offer standard products and customized solutions.
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Product
12 Pulse SCR Controlled High Voltage Power Supply
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- 12 Pulse SCR Controlled Power Supply, P/N 19435PS- Input: 480 VAC, 300 Amps, 3 PH, 60 Hz- Output: 0 to 3000 VDC ± 10%, 80 Amps max adjustable with potentiometers, and 4/20 mA input signals from the PLC- Output voltage and current are provided as 4/20 mA signals to PLC- Contactor and overload relay are installed for protection- Power ON Light- Start / Stop capability- EPO capability- Manual voltage control and current limit- PLC interface- Output voltage and current are displayed on the voltmeter and ammeter.- A selector switch is used to select between manual Control or PLC Control- The customer is responsible for the PLC controller and PLC programming- Power enclosure, 68″H x 65″W x 44″D- Control enclosure: 20″H x 16″W x 9″D- Weight: 5000 lbs. approximately- All input/output connections are inside the enclosure
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Product
Selenium Surge Suppressor
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Surge suppressors are used to protecting circuits from transients (sudden, brief increases in voltage). Transients of widely varying magnitudes are caused by such circuit components as motors, coils, magnets, relays, and transformers. They are found in all electrical systems and are notorious for damaging diodes, SCRs, transformers, triacs, and relay contacts.
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Product
VARIABLE TRANSFORMER DC POWER
208163V
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Motorized Variable Transformer Controlled Power Supply, P/N 208163VInput power: 208 VAC, 6 Amps, 3 PH, 60 HzOutput: 0 to 120 VDC, 16 Amps max.Ripple: 5%Manual control with variable transformerCircuit breaker / ON OFF on the 208 VAC, 3 PH input lineProtection fuse provided on the outputPOWER ON lightIndoor enclosure: 24H x 20W x 9DVoltmeter and ammeter are installed to monitor the output.All input/output connections are available inside the enclosureSystem includes main unit and remote assembly.
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Product
Refurbished Rectifiers
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CEHCO has a large inventory of used and refurbished rectifiers in stock. All include 3 month part warranty.
