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Standard Transformers
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Detection of PtG and PtP Faults on Multi and Single Core Cables
CableTroll 2350
CableTroll 2350 is an indicator for detection of PtG and PtP faults on multi and single core cables. The unit uses standard type current transformers. (40:1, 60:1 or 3x500:1)
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Electronic AC Potential Standard
PMT25010
Power Measurement Technologies Inc.
Provides the electronic equivalent of a standard potential transformer as typically required for instrumentation potential transformer accuracy testing.
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Impulse Generators and Measurement Systems
Designed to generate impulse voltages that simulate lightning strokes andswitching surges as defined by IEC, ANSI/IEEE, and other national standards on:• Distribution transformers• Small power transformers• Cables (type tests)• Arrestors (impulse current tests)• Motors / generatorsTesting ApplicationsImpulse Generators andMeasurement Systems• Insulators• Bushings• GIS• Instrument transformers
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Standard Current Transformer
HL / 640
Wuhan Huatian Electric Power Automation Co., Ltd.
It is used as the calibration standard of current transformer in the error test of transformer.
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Standard Current Transformers
Measurements International Ltd.
Single Range, Highest Permeability, Wide Measurement Range, Negligible Current Errors, High Accuracy.
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Transformers
Chengdu Mengsheng Electronics Co., Ltd.
As a leading transformer manufacturer, DOREXS is committed to providing a variety of high-performance standard and customized transformers to meet the power needs of various industries.DOREXS has a professional R&D design team and advanced production technology to ensure that our transformers are at the forefront of the industry. At the same time, they are strictly produced in accordance with international standards to ensure that the performance and stability of each transformer are maximized.Our products cover dry type transformers, single phase transformers, three phase transformers, high frequency transformers, toroidal transformers, R core transformers, EI core transformers, isolation transformers and special transformers.If you need to know more about our products and services, please feel free to contact us.
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Potential Transformer Test Set
Supreme Instrument Laboratories
The two voltage vectors, one from Standard Potential Transformer and the other from the Potential Transformer under test energies the high permeability magnetic core and then associated windings try to annual the residual magnetism which occurs due to error. The differential vectors will be proportional to phase error and ratio error magnitudes.
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Transformer Test Panel/ Setup
This is a common test panel for distribution/ power transformers of different specifications. The user can perform most of the factory tests, as per the relevant IS standard for the transformers. The panel consists of power analyser, meters for high voltage test, meters for induced voltage test etc, control for all the tests, protection and interlock circuits so that a single panel can be used to conduct a number of tests using only one dimmerstat and the associated devices
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Current Transformers Test Set
Supreme Instrument Laboratories
The basic unit is sensitive magnetic comparator and also it incorporates electronic null detector to facilitate the balance. The reference Current 5A. or IA. obtained from Standard Current Transformer and in comparison to that the vector length and phase displacement is measured. The ratio error in percentage and phase displacement in minutes are directly compared and indicated on dials.
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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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Lamp Converters
PeakTech Prüf- und Messtechnik GmbH
This AC / AC voltage converter is particularly suitable for use with halogen indoor lights and other low-voltage light sources that require an AC voltage source for supply. There is a safe galvanic separation between mains and low voltage according to the isolating transformer standard. This pre-assembled AC / AC converter is equipped with an overtemperature switch that cannot be reset.
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Transformers/Baluns
Macom Technology Solutions Holdings Inc.
At MACOM we offer multiple industry standard transformers used in wireless, aerospace and defense and communications applications. Available in a variety of surface mount, flat pack, and connectorized packages, our transformers and baluns are available in balanced and unbalanced versions and are characterized as 50 and 75 ohm impedance devices. Working closely with system design engineers to meet custom specifications, our proven technological expertise and innovative high quality, low cost manufacturing capabilities makes MACOM the partner of choice for some of the world’s leading infrastructure companies.
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Standard Voltage Transformer
HJ / 635
Wuhan Huatian Electric Power Automation Co., Ltd.
It is mainly designed for the voltage transformer calibration standard of basic power supply and production department.
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Transformer Testers
*Quickly tests deenergized power distribution transformers*Briefly energizes the transformer and takes a snapshot of the condition by measuring the voltage, current and power factor of the test signal*Tests overhead, pad-mount and distribution transformers*Audible alarm confirms successful test*Improve SAIDI statistics by quickly testing and getting the transformer back in service*Auto self-test performed with every test*Compact, lightweight and easy-to-use
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Transformer Analyzer
505
The UTEC 505 Transformer Analyzer is designed for testing current transformers (CT) and potential transformers (PT) without interruption of the customer’s service. This instrument measures CT admittance, CT ratio, CT primary-to-secondary phase angle and the voltage, current and phase angle of the service. With the ‘Burden CT/PT Option’, it determines the CT secondary burden capability, the regulation of the PT and its secondary burden capability and provides for CT core demagnetization.
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Voltage Transformer
Beijing GFUVE Electronics Co.,Ltd.
Are a parallel-connected type of instrument transformer. They are designed to present a negligible load to the supply being measured and have an accurate voltage ratio and phase relationship to enable accurate secondary connected metering.
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Control Transformers
ENTES control transformers ensure the safe operation of measuring devices with 24 VAC supply voltage for electical control panels. Input voltages of Control transformers are either fixed (230 or 400V) or selectable with taps (400;230+15-15).
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Rectifier Transformers
Osborne’s Rectifier Transformers are used in conjunction with various rectification configurations to convert AC input to DC output(s). Key characteristics include regulation, transformer utilization and AC ripple. Osborne rectifier transformer designs are often engineered to operate in advanced rectifier circuit applications.
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Current Transformer
ST-60CT
Standard Electric Works Co., Ltd
● 400/5A - 800/5A● 7.5-10V A● Class 1● Insulation 600V
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Current Transformer
CT
The split-core current transformers are easily installed with the snap on design.
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Current Transformer
ST-40CT
Standard Electric Works Co., Ltd
● 200/5A - 400/5A● 3-5V A● Class 1● Insulation 600V
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Standard Patchcords
VPC's standard and stocked patchcords make patchcord order and delivery quick and easy. Available in signal (QuadraPaddle and TriPaddle), power and coax.
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Ethernet Transformers
Pulse’s Ethernet transformers are RoHS compliant and qualified at major PHY suppliers. 100/1000/2.5G/5G/10GBASE-T Ethernet transformer modules are optimized for all major LAN transceivers. All modules provide electrical circuit isolation that meets IEEE 802.3, while maintaining signal integrity needed for the most demanding applications.
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High Frequency Transformers
Osborne High Frequency Current Transformers operate at frequencies higher than 50/60 Hertz. Their purpose is to reduce high frequency system currents to lower values that are appropriate for instrumentation and/or protection circuits. They have been designed to meet specified current ratios, and burden impedance at a specified transformation error. One area of unique Osborne expertise is in designing for phase shift when high frequency current transformers are to be used for power measuring applications.
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Transformer Tester
Kvtester Electronics Technology Co.,Ltd
High precision instrument for measuring characteristic parameters of transformer capacity, no-load and load. The instrument is a multi-function measuring instrument, which is equivalent to the usual two kinds of test instruments: the transformer capacity tester + transformer characteristic parameter tester. The utility model can precisely measure a series of power frequency parameters of a plurality of transformers, such as the capacity, the type, the no-load current, the no-load loss, the short circuit (load) loss and the impedance voltage.
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Current Transformer
Nippen Electrical Instruments Co.
DIGITAL METERS NIPPEN electronic energy meters are panel mounting type innovative energy monitoring devices ,having state of the art electronic microcontroller circuitry for reliability and accuracy. They can be used for 1Ø / 3Ø balanced and unbalanced loads.
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Standard Tests
The following list contains only the most important standards and does not claim to be complete.EN 60204-1 Electrical equipment of machinesEN 60335-1 Electrical appliances for household and similar useEN 50106 Sampling test, routine tests (in conjunction with EN 60335-1)EN 60598-1 LuminariesEN 60601-1 Medical electrical equipmentEN 60730-1 Automatic electrical controlsEN 61010-1 Measuring, control and laboratory equipmentEN 61439-1 Switch cabinet and switchgearEN 62368-1 Equipment for audio/video, information and communication technologyEN 62841-1 Hand-held electric toolsEN 50191 Erection and operation of stationary and non-stationary electrical test equipmentLVD Low V oltage D irective _