Showing results: 5251 - 5265 of 7529 items found.
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VARIABLE TRANSFORMER -
Carl E. Holmes Company
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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PS Series -
Carl E. Holmes Company
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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Carl E. Holmes Company
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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Carl E. Holmes Company
- Regulated Power Supply, 9.6 KW P/N 5944C2- Input: 220 VAC, 3 PH, 50/60 Hz- Output: 0 to 24 VDC, 400 Amps max- Duty factor: 100%- Ripple voltage: <3% across full output range- Setting: 0 – 100% current and voltage- Control: Constant current and voltage control- Ambient temperature: up to 95 degrees F- cooling: Forced air-cooled- Dimension: 17.6″H x 19.9″W x 21.6″D- Weight: 175 lbs.- Degree of protection: NEMA 2
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Carl E. Holmes Company
High voltage SCR controlled power supplies require the following:Output voltage is high. Output current is generally Low.Voltmeter and ammeter display the output voltage and current under load.Potentiometers are used to adjust output voltage and limit output current from minimum to maximum.
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AFV-P Series -
Carl E. Holmes Company
Rating:600 VA to 5 KVASingle Phase OutputOutput frequency: 45 Hz to 500 Hz (Optional for 15 Hz to 1000 Hz)
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Carl E. Holmes Company
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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Carl E. Holmes Company
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.
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Carl E. Holmes Company
Shown below is an Electrochlorination power supply with a 4/20 ma interface. Input is 240 VAC, 1 PH, 60 Hz. Output is 0 to 10.5 DC, 130 Amps. This power supply can be interfaced with a PLC system. These units are custom units, built to order.
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Carl E. Holmes Company
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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208163V -
Carl E. Holmes Company
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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Carl E. Holmes Company
MRI Power Supplies are used in MRI Imaging rooms in hospital environments. 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 the MRI room, where a 60 Hz flicker-free light environment is desired. CEHCO offers four models which are shown below.
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AFC Series -
Carl E. Holmes Company
CEHCO can supply AC to AC Non-Programmable Power Sources. We offer standard or customized solutions. The AFC Series is from 500 VA to 2000 KVA.
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Carl E. Holmes Company
CEHCO is manufacturer, re-seller, and distributor of Power Rectification products such as DC Rectifiers, Transformer Rectifier Assemblies, and Custom Power Supplies since 1945.
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Carl E. Holmes Company
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.