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High Voltage Power Supplies
FuG high-voltage power supplies of all types except HYN are primary switched-mode power supplies with pulse width modulation . The rectified mains voltage is chopped into square pulses of constant frequency, transformed, rectified and smoothed. The square-wave voltage is pulse-width modulated for regulation.
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110V / 90 Amp Load
EL12-110M
For Telecom Rectifier and Power Supply testing. This particular Load has been designed to operate with Telecom 110V Rectifiers and Power Supplies with output Voltages in the range of 100V to 135V and is extremely cost effective.
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40kw High Efficiency AC/DC Power Supply Charger 100-750VDC Charging Rectifier 100A Battery Charger
SD750100G
Zhejiang Sandi Electric Co., Ltd
40kw High Efficiency AC/DC Power Supply Charger 100-750VDC Charging Rectifier 100A Battery Charger is for DC battery system charging station. With three-phase non neutral conductor AC input, it has the advantages of high efficiency, high power density and low harmonic. 50-500Vdc output voltage range optional, suitable for all types of batteries.
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Portable System for High-Voltage Solid Dielectrics Testing
HVT-70/50
Portable system HVT-70/50 is designed for carrying out high-voltage withstand testing of cable insulation and other solid dielectrics with DC (rectified) voltage up to 70 kV and AC voltage up to 50 kV RMS at industrial frequency (f = 50 Hz).
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Earth Ground Meters
The earth tester determines ground resistance for both specific and ohm resistances. The earth tester is powered by batteries and have a clock timer function (3 minutes), Data-Hold function, a 3 ½ positions LCD display and their dimensions are 163 x 100 x 50 mm. Resistance ranges come from 20, 200 to 2000 ohms. They have a resolution of 10 / 100 mΩ / 1 Ω. The earth tester measure resistance by means of a constant reverse current (approx. 800 Hz, 2 mA). To measure ground voltage a rectifier is used (5 kΩ/V aprox. 40...500 Hz). The earth tester PKT-2630 series have a small format as well as multiple functions.
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AC and DC Electronic load
63800 series
The Chroma 63800 Loads can simulate load conditions under high crest factor and varying power factors with real time compensation even when the voltage waveform is distorted. This special feature provides real world simulation capability and prevents overstressing thereby giving reliable and unbiased test results. The 63800's state of the art design uses DSP technology to simulate non-linear rectified loads with its unique RLC operation mode. This mode improves stability by detecting the impedance of the UUT and dynamically adjusting the load's control bandwidth to ensure system stability. Comprehensive measurements allow users to monitor the output performance of the UUT. Additionally, voltage & current signals can be routed to an oscilloscope through analog outputs. The instrument's GPIB/RS232 interface options provide remote control & monitor for system integration. Built-in digital outputs may also be used to control external relays for short circuit (crowbar) testing.
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HIGH VOLTAGE SCR CONTROLLED POWER SUPPLY
xPS Series
High Voltage SCR Controlled Power Supply, P/N 18278PS Power Rating: 350 KW. Input: 480 VAC, 3 PH, 60 Hz Output: 0 to 5000 VDC, 70 Amps max Ripple: 2 % approximately at maximum rated voltage Configuration: 12 pulse externally SCR controlled rectifier system Protection Devices: Input contactors Overload relay shutoff Input surge suppressor Thermal switches Output current limiting resistor (made with 5 Ohm Kanthal heating element) Emergency power shutoff Cooling: Each 6 pulse rectifier assembly is cooled by three 10” fans Interface: 4/20 ma converter interface for output voltage and output current to SCR controller. Enclosure: The overall dimension of the unit is (78”H x 38”W x 53”D). It is comprised of two separate enclosures each with dimensions of (78” H x 38” W x 26” D) which are integrated together to form a single enclosure. Each half enclosure has one 6 pulse transformer and one 6 pulse high voltage rectifier. Weight: Approx. 5000 lbs. SCR Controller: The 12 pulse SCR controller is supplied by the customer. We were responsible for the 12 pulses Transformer and 12 pulses Rectifier section. Portability: Unit can be lifted up with a fork lift. It can also be moved around with a 5000 lb pallet jack. Transformer: Two 200 KVA transformers are used to step 480 VAC to 3750 VAC each in a 12 pulse configuration Rectifiers: Two 6 pulse rectifier assemblies capable for 5000 VDC and 60 Amps output were used. The high voltage rectifier assemblies are isolated and protected in a fiberglass plenum within the enclosure. Blocking Diode: Each diode of the 6 pulse rectifier consists of 10 diodes in series to offer a blocking voltage of 12000 V (PIV)
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Battery Charger Meters
A range of ammeters and voltmeters with tough moving magnet or polarised moving iron movements designed for low cost indication of d.c. or rectified a.c.
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Portable System for High-Boltage Solid Dielectrics Testing
HVTS-70/50
Portable system HVTS-70/50 is designed for carrying out high-voltage withstand testing of cable insulation and other solid dielectrics with DC (rectified) voltage up to 70 kV and AC voltage up to 50 kV RMS at industrial frequency (f = 50 Hz).
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Switch-Mode Power Supply
Toellner Electronic Instrumente GmbH
Supplies incorporate a simple full-wave rectifier connected to a large energy-storing capacitor.
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Thickness Gauges
CMX DL+
The CMX DL+ has all the features of the CMX DL, plus a full featured A-Scan presentation with RF and Rectified viewing options. The CMX DL+ is equipped with 3 fully adjustable gates (start, stop, width, & Threshold). Equipped with a 20dB boost/cut attenuator, which offers added flexibility for transducer types and applications. Selectable 50 volt pulser boost or cut (100 200 volts). Truly the Cadillac of the CMX series.
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Fluorescent Lamp Asymmetric Pulse Tester
UI2002C
UI2002C is designed according to the latest update in IEC 61347-2-3 about the test requirements for local rectifying effects on tubes. It imitates the condition when tube is under local rectifying status and tests the abnormal protection function of ballast by adopting fluorescent lamp asymmetry pulse test method with 3 windows for displaying rectified voltage, rectified current, and rectified power. It is easy for operation and with high test accuracy. • Measure lamp voltage, lamp current , average and total power of lamp. • Lamp voltage range: 10~300V • Lamp current range: 10mA~1.0A • Lamp power range: 0.5~300W • Tolerance is 5%
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AC Filament Switching and Line Relays
*Heavy duty Elkonite contact tips*AC and DC versions available*AC versions available with or without internal rectifier PCB*Automated vision system and operator inspection*Comprehensive automated end of line testing*Test Certificates supplied with each relay*Certificate of Conformity supplied with each order*Recertification and repair services available
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ARINC 818 Analyser
iWave’s ARINC 818 Video Protocol Analyzer (VPA) instantly verifies the ADVB Packets against ARINC818 Standards. ARINC818 VPA software efficiently captures, decodes the ADVB data, and displays the ADVB data, raw video data, and error status. It is an excellent troubleshooting tool that helps to quickly detect and rectify errors in the ARINC 818-2 applications, simultaneously ensuring compliance of the system with the ARINC 818-2 standards.
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Resistive & Capacitive AC Load Bank
RCD
RCD AC load banks are used to test the REAL working condition of UPS, rectifier, inverter and etc who are loaded by non-linear or electronic load with non-constant resistance such as computer, networking equipments and etc. Through the accurate detection of its output and power quality, users could avoid the inadequate loading capacity or cause pollution to power grid, so as to guarantee supply security. JUNXY RCD load banks leading power factor loads are created to debug power supply system parameters such as its crest factor test.
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F Series Panel Meter
ST-70U (Four studs mounting)
Standard Electric Works Co., Ltd
● Hz Meter : Measuring Ranges : 45~56 Hz, 45~55 Hz, 55~65 Hz Rated Voltage : 110V, 220V Accuracy : Class 2.0 Consumption : Max. 15mA Test Voltage : 2kV. 50-60 Hz● Case and Composition: Polycarbonate front and Polybutylene Terephthalate(PBT). Three studs mounting.● Accuracy : AC class 2.5 DC class 2.0 Rectifier class 2.0● Color：Black case and white scale plate.● Pointer：Sword type color in black.
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SCR, Diodes & Assemblies
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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5000 AMP DC Rectifier - Air Cooled, P/N 6037C1
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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460V / 18 Amp Load
EL08-460M
For High Voltage UPS Battery Testing and Power Supply testing. This particular Load has been designed to operate with UPS Battery Systems and Telecom Rectifiers and Power Supplies with output Voltages in the range of 307V to 460V and is extremely cost effective.
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Independent Operation AC Generator Excitation Regulator
SVRi
Kinetics Control Systems SVRI Exciter/Regulator rectifier is designed and rated in capacity for the application of exciting the DC fields of an AC generator operating independently with other generators and/or NOT tied into a utility power grid.
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Transformer Turns Ratio Tester (TTR)
HTBC-IV / 251
Wuhan Huatian Electric Power Automation Co., Ltd.
Suitable for transformer testing of three-phase transformer, z-winding transformer, rectifying transformer and railway electrical system.
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Bench Type Panel Meter
ED-305
Standard Electric Works Co., Ltd
● Precision meters for plant maintenance, field servicing and educational purposes.● Taut Band movement with rectifier type.● Multi terminals (4mm socket) for range selection.● Carbon pointer, mirror scale to eliminate parallax error.● High resistance to shock and vibration.● Accuracy：±1.5% F.S.● Scale length：80mm.● Dimension：107(L) × 117(W) × 53(D)mm.● Weight：Approx. 300g.● Meets CE EN 61010-1 CAT Ⅱ 600V EN 61326-1 (for 0~600V)
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P Series Panel Meters
ST-38N
Standard Electric Works Co., Ltd
● DC up to 15A● Case and Composition: Acrylic resin front. ABS case. Four studs mounting. Two studs mounting.● Accuracy :DC : Class 2.0 AC : Class 2.5 Rectifier : Class 2.0● Color：Black case, white scale plate.● Pointer：Tube type, color in black or red.
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S Series Panel Meter
ST-670B
Standard Electric Works Co., Ltd
● DC up to 50A● AC up to 30A● Case and Composition: Acrylic resin front and Bakelite case. Four studs mounting.● Accuracy : Moving coil type：Class 2.0 Moving lron type：Class 2.5 Rectifier : Class 2.0● Color：Black case. white scale plate.● Pointer：Tube or knife-type, color in black or red.
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F Series Panel Meter
ST-90U
Standard Electric Works Co., Ltd
● Hz Meter : Measuring Ranges : 45~56 Hz, 45~55 Hz, 55~65 Hz Rated Voltage : 110V, 220V Accuracy : Class 2.0 Consumption : Max. 15mA Test Voltage : 2kV. 50-60 Hz● Case and Composition: Polycarbonate front and Polybutylene Terephthalate(PBT). Three studs mounting.● Accuracy : AC class 2.5 DC class 2.0 Rectifier class 2.0● Color：Black case and white scale plate.● Pointer：Sword type color in black.
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Analog Power Supply
Type NPS-2412
National RF's Type NPS-2412 analog power supply was designed to be used in communication equipment where radiated switching inverter noise from conventional “switching type” supplies is not acceptable. The power supply consists of a standard rectified transformer output driving a pair of voltage regulators and filtering networks. The 2412 offers an adjustable voltage output between 2 and 24 volts as well as a fixed voltage output of 12 volts. A maximum of 20 Watts of DC power can be supplied from the unit. As the voltage regulators dissipate power in the regulation process, the power to the load is derated accordingly, dependent on the set voltage to the load. The adjustable regulator is a standard LM-317T integrated circuit device. The fixed regulator is a standard LM 7812 device. Upon customer request, the LM 7812 device may be changed to any voltage rating within the the LM-78xx series of regulators. Contact National RF for this modification if desired.
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Static Inverters
Our static inverters are designed as uninterruptible power supplies (inverter in conjunction with rectifier and battery) to bridge short-term interruptions, power failures, voltage fluctuations, frequency fluctuations or generally to compensate for power disturbances in the data processing sector and in automation and control systems. They are used to supply AC consumers, primarily in the rail and industrial sectors.
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Floor Conductivity Tester Hand Crank
LA-1 HC
LA-1 HC Floor Conductivity Tester Hand Crank is an easy-to-use meter developed for accurately testing the conductivity of floors and equipment. The LA- 1 must be used regularly to monitor proper conductivity with NFPA code # 99. Regular use of the LA-1 will establish and maintain procedures for the proper maintenance of conductive floors, eliminate fire hazards, and provide a static free environment. A hand crank AC type generator provides a rectified DC test potential. Additionally, there are no brushes to wear out. The LA-1 has an easy-to-read scale that is selectively expanded electronically to assure accurate readings over the entire range of the instrument and the scale has a length of 3.75. This is 42% longer than typical competitive testers. The LA-1 uses 500V DC to test the resistance (in ohms) between two points. (NFPA Code #99) The meter comes ready-to-use (tin foil must be applied to bottom of weights). Simply follow the instructions for use and instantly obtain an accurate measurement. Choose electric or hand powered model.
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Diodes And Rectifiers
Vishay is a world leader in diodes and rectifiers, having a broad technology base and a solid position in automotive, industrial, computing, and consumer markets.
