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
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
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
Two Diode Assembly, P/N 6030C
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Two Diode Assembly, P/N 6030CEach diode is rated for 400 Amps, 1200 PIVTwo diodes are installed on one heatsinkDimensions: 8”H x 8”W x 10”DEstimated weight: 20 lbs.When A is greater than B, Battery 2 is reversed BiasWhen B is greater than A, Battery 1 is reversed Bias
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Product
Bipolar Power Supply, 0 to ±50 VDC, 100 AMPS, 10 KW, P/N 19215PS
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Specifications:Bipolar Power Supply, 10 KW, P/N 19215PSInput: 220 / 230 / 240 VAC, 46 Amps, 1 PH, 50 HzOutput 1: 0 to ± 50 VDC, 100 Amps max, Upper SectionOutput 2: 0 to ± 50 VDC, 100 Amps max, Lower SectionEnclosure: 42″H x 32″W x 22″DAll connections are inside the enclosureThis unit is a dual output power supply
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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
Selenium Voltage Doubler Rectifier P/N 6063C
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Selenium Voltage Doubler Rectifier, P/N 6063CPlate size: 1.6” x 1.6”Each plate is rated for 33 Volts, 9 AmpsNumber of plates: 24
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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
Replacement Selenium Surge Suppressor Specialists
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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
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
High Voltage Diode Assemblies
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High voltage diode assemblies are built by adding diodes in series to yield a higher peak inverse voltage. For example, if each diode is rated for 1200 peak inverse voltage (PIV), then six diodes in series would have a total peak inverse voltage of 7200 PIV. The detailed circuit is shown below.
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Product
Repair of Solid State Switch, P/N 60-SS480
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Solid State Switch P/N 60-SS480Input: 480 VAC, 3PH, 60 HzOutput:480 VAC, 3 PH, 60 HzControl Voltage: 120 VAC, 1 PH, 60 Hz
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Product
DC to DC Power Converters
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CEHCO can supply DC to DC Power Converters. We offer customized solutions. The DC to DC Power Converters are from 1 KW to 200 KW.We need additional information from the customer as shown below:DC input voltage rangeDC output voltage rangeMaximum output current requirement and rangeOther requirements (ex: response time, ripple, remote control… etc)
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Product
Delta DC Rectifier Repair/Refurbishment
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Delta DC Rectifiers are used by original equipment manufacturers to build On-Site Sodium Hypochlorite Generator Systems. These power supplies are generally operated at full load for 24/7 operations at high temperatures. Hence, these power supplies must be extremely rugged and must be de-rated significantly to achieve long operating life.
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Product
12 Pulse Diode Bridge Rectifiers Inside Fiberglass Plenums, P/N 5872C4-2
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- 12 Pulse Diode Bridge Rectifier, P/N 5872C4-2- Each diode is rated for 60 Amps, 1800 Volts peak- Dimensions: 50″L x 40″W x 20″H approximately- Four 10″ fans are used for coolingFour 10″ fans will force cool from the bottom of the Plenum. 12 diode assemblies (each diode consists of nine diodes in series are integrated together inside the Plenum). The output is rated for 3000 VDC, 80 Amps.
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Product
MRI POWER SUPPLIES
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MRI Power Supplies are used in MRI Imaging rooms in hospital environment. The lights in the MRI rooms require DC power. If AC power is used, the quality of the MRI imaging process is compromised. These units are ideal for MRI room, where a 60 Hz flicker free light environment is desired. CEHCO offers four models which are shown below.
