The Intelligent dielectric loss tester also applies to the measurement of tg�´ and electrical capacity of high voltage electrical equipments in the workshops, laboratories and research institutes.
It could measure non-grounded or grounded high voltage equipments adopting positive and negative connection method. Besides, it could measure the tg of capacitor voltage transformer and capacitance of main capacitor C1and C2.
Main Specifications
Control panel: printer, keyboard, indicator and communication transferring.
Variable frequency power supply: SPWM switching circuit is adopted to generate and output high-power sine wave stable voltage.
Step-up transformer: the output of variable frequency power supply is stepped up to the measuring voltage. The maximum reactive power output is 2KVA/one minute.
Standard capacitor: internal Cn. It is the measuring basis.
Cn current detection: it is used to detect the internal standard capacitor current, 10A ~ 1A. The input resistance is
Partial discharge test system is mainly used for testing frequency voltage insulation level of various insulation materials insulation structure and electrical products also as partial discharge frequency testing power supply for testing object such as transformer mutual inductor and lightning arresters. It widely used in electrical manufacturing power operation departments research institutes and universities.
Digital detector partial discharge test and the sensorwith the software using advanced signal processing technology covering a wide range of statistical methods and graphical display mode and coming with highenergy lithium batteries can flexibly achieve the detection of transformer partial discharge signals and ultrasonic signals capable of full range of detection for the transformer's partial discharge.
Partial discharge detection location detect the partial discharge changes in the transformer's internal during the operation by examining the partial discharge conditions of the device to analyze the insulating state of the transformer.
Echnical parameter
Number of channels: 4 independent measurement channels (scalable) and 1 external trigger input channel.
Sampling rate: 200MSa / s
Sampling accuracy: 12bit
Host Screen size: 6.5 inches
Operation: mouse keyboard touch screen
Host interface: 2 USB ports 1 Ethernet port 1 VGA port.
Synchronous Frequency range: 30Hz ~ 1MHz
Power Mode: Built-in lithium battery or external AC power supply (AC220V 50Hz)
Measurement content: Discharge magnitude (Q) the discharge phase (?) the discharge density (N)
Data processing sampling period: 1s
3 amplitude-time a relationshipmagnitude-phase relationship number of discharges-phase relationship
Petroleum Kinematic Viscometer for conforms to GB/T 265-1988 "Measuring and calculating method for kinematic viscosity of petroleum products", which is applicable to test the kinematic viscosity of liquid petroleum products (Newtonian liquids). It is used to measure the time when a certain volume of liquid flowing through a calibrated glass capillary viscosimeter under the gravity at a constant temperature. The product of capillary viscosimeter constant and flow time is the kinematic viscosity of liquid at that temperature.
Current Transformer Analyzer is new product created after widely adopt customers advices and deep theoretical study. It is based on the automatic FA Series Transformer Tester General which is produced by our company that is widely acclaimed and applied. The adoption of high-performance DSP and ARM, advanced manufacturing technology ensure a stable and reliable product performance, full-featured, high degree of automation, high efficiency, in the domestic leading level, they are the professional testing equipments for transformer check in power industry.
Technical Parameter
CTA-1000
Usage
CT PT
Output
0~180Vrms 12Arms 36A peak value
Voltage measurement accuracy
±0.1%
CT Ratio
Range
1~40000
accuracy
±0.05%
PT Ratio
Range
1~40000
accuracy
±0.05%
Phase
Range
±2min
accuracy
0.5min
DC resistance
Range
0~300
accuracy
0.2%±2m
Burden
Range
0~1000VA
accuracy
0.2%±0.02VA
0.2%±0.02VA
Power supply
AC220V ±10% 50Hz
Environmental Conditions
Operating temperature : -10 C~50 C Humidity : 90%
Weight and Dimensions
Dimensions: 365 mm 290 mm 153mm,Weight
443 Tools Instruments Suppliers
Short on time? Let Tools Instruments sellers contact you.
Many power systems, railway systems, large-scale petrochemical plants and enterprises have a lot of electrical equipment whose internal insulation are mostly oil-filled insulation type, and therefore, test on insulating oil dielectric strength is common and necessary. To meet the needs of the market, we have developed and produced a series of insulating oil dielectric strength testers according to national standard GB/T507-2002, industry standard DL429.9-91 and the latest Electric Power Industry Standard DL/T846.7-2004 by ourselves. This instrument, by using a single-chip microcomputer as the core, can operate in full automation with high accuracy, greatly improving work efficiency and reducing the labor intensity of workers. Moreover, it is small in size and convenient to carry.
Major Technical Indicators
1. Output voltage: 0-100KV (optional)
The Transformer short-circuit impedance tester comes with an adjustable power output. Regardless of single-phase or three-phase transformers, only one connection is required, and the instrument can complete the measurement of all winding pairs. The test and connection are simple.
Main technical indicators and conditions of use
Measurement accuracy: voltage, current: 0.2 level
Power: COS>0.1: 0.5 grade; COS 0.1: 1.0 grade
Impedance: COS>0.1: 0.5 grade; COS 0.1: 1.0 grade
Voltage measurement range: AC 3V300V
Internal power output range: voltage 0~250V, current 0~10A
Product description
Oil dielectric loss tester is a high-precision instrument, which can be applied to measure dielectric loss angle and Volume Resistivity of insulating oil etc. It is integrated by oil cup for dielectric loss, temperature-control equipment, temperature sensor, test-bridge for dielectric loss, AC trial electrical source, standard capacitor, high resistance meter and DC high-voltage power etc. The most advanced heating mode of high frequency induction is applied to the heating part of this instrument, which has the advantage of non-contact of oil cup and heating unit, homogeneous heating, quick velocity and convenient control etc.
Technical index
Oil cup technical specifciations:
Distance between High Voltage terminal
and Low Voltage terminal 2mm
Capacitance of Empty Cup 60±2PF
The Highest testing voltage Industrial Frequency 2000V
Transformer oil acid tester is a fully automatic measuring instrument which adopts the extraction method to accurately detect the insulating oil acid value. This instrument can improve the working efficiency and test accuracy, and at the same time ensure the safety of the body by reducing the operator's contact with the samples and reagents.
The acid value is the trace value of potassium sulfate that neutralizes the petroleum acid in 1g of oil, which contains a certain amount of inorganic acid and inorganic acid. The acid value includes organic and inorganic acids contained in the oil. In most cases, oil does not contain mineral acids. Therefore, the oleic acid value actually represents the content of organic acids in the oil. The organic acid contained in the new oil is mainly cyclonic acid. In the oil and in the process of use, the acid value of the oil produced by oxidation is an indicator to measure the degree of refining of the new oil. Whether the oil is running is an important indicator of the continued use of oil quality equipment.
Product Introduction
Capacitive voltage transformer (CVT) in calibration the test must be conducted under the condition of 50Hz frequency complex geographical condition on site at the same time the traditional experiment device is difficult to meet the requirements of on-site handling testing series resonance booster device is first used in domestic field tunable resonance device has been widely used in domestic 500 kv and below the field calibration of capacitor voltage transformer.
Product Parameters
Technical parameters
Rated Capacity 80kVA
rated voltage 160kV
Adjustable inductance range 65~130H
Rated frequency 50Hz
Rated current 0.5A
Adjustable gap range 0~300mm
Product Characteristics
1 Due to full compensation of resonant reactive power the power of power supply and equipment is less than 1/10 of the required capacity of the subject (1/Q>10). Small size and light weight with the same capacity large output capacity of the device and small power capacity required cheap convenient and safe to use;
2 Series resonance is actually a current filtering circuit so that the current passing through the subject is basically the fundamental current and the waveform distortion rate (THD) of the output voltage is very small which is superior to all existing ac voltage withstand equipment.
3 The short circuit current of the sample after flashover or breakdown is only less than 1/10 (1/Q) of the test current before short circuit which can effectively prevent the expansion of damage to the fault point after breakdown;
4 After flashover the arc will be automatically extinguished immediately. The long (number of seconds) process of restoring resonant state voltage after arc quenching is a steady-state establishment process and there is no danger of voltage overshoot and no danger of restoring overvoltage in microsecond millisecond transient process.
Transformer GIS SF6 switch CT/PT insulator bus bar cable bushing and others capacitive devices are the common primary electric equipments.
The complete set of frequency conversion series resonance test equipment is mainly used for ac withstand voltage test of cross-linked cable hydraulic generator main transformer bus GIS etc.
The complete set of frequency conversion series resonance test equipment is mainly composed of frequency conversion control power supply excitation transformer reactor capacitor voltage divider and compensation capacitor (optional).
Product Parameters:
technical parameter
Rated output voltage 0 1000kV and below
output frequency 30 300Hz
Resonance voltage waveform Pure sine wave waveform distortion rate 1.0%
Working time Full power continuous working time of 60min
Quality factor 30~90
Frequency regulation sensitivity 0.1Hz
Instability 0.05%
Working power supply Single-phase 220V or three-phase 380V ±10%
Power frequency 50Hz ±5%
Earth ground resistance tester is a high-precision testing instrument used in various fields such as substations to test grounding resistance and related parameters.The instrument is of an integrated structure, with a built-in frequency conversion power supply module, and the output power supply is continuously variable in frequency. The frequency can be changed to 45Hz or 55Hz, the high-speed processor core is built in, and the high-end digital filtering technology is adopted, thus effectively avoiding the interference of power frequency electric field to the test and fundamentally solving the difficult problem of accurate measurement under strong electric field interference.
The instrument is designed for HV substations and power plants to test the characteristic of large HV transformer, electric machines and appliances, remote power cable or buried cable and other electrical insulation resistance in strong interference environment. It also can be widely used for testing characteristics of insulation resistance in other area.
Technical Parameters
Technical parameters
Measurement voltage range 0.5kV 1kV 2.5kV 5kV 10kV 20kV
Measurement voltage accuracy ±(5% 10V)
Short circuit current 10mA
Measurement range and accuracy
Measurement range
Resistance measurement
Transformer oil flash point tester is used to determine the flash point value of petroleum products. The instrument adopts electric ignition mode without any flammable gas and meets the requirements of GB3536-2008 and GB267-88. Moreover, it utilizes many kinds of latest technologies such as ARM series high-performance microprocessor, electric erasing memory (can store thousands of data records), 7-inch color liquid crystal display and touch screen and PID self-tuning, etc.
Technical index
Test range: 40~400
Test type: Open flash point
Temperature detection: Platinum resistance
Accuracy: ±1
Repeatability: Meet GB3536-2008 and GB/T 267-88
Display: 7-inch touch screen and colorful LCD
Information storage: 1000 test results can be stored
Ignition method: Electronic ignition
Cooling method: Forced air cooling
Atmospheric pressure: Automatic detection of atmospheric pressure, automatic correction of test results
Printer: Dot matrix thermal printer
Self-check function: Lift lever, scratch lever, printing, etc.
Power: 600VA
Power supply: (AC) 220V ±11V frequency: 50Hz ±2.5Hz
To satisfy the requirement for quick measurement of DC resistance of transformer, our Company has developed three-channel, DC resistance tester aiming at YN connection winding. The tester can fulfill functions such as simultaneous energization on three phases, independent current sampling, voltage sampling, as well as simultaneous measurement and display of three-phase resistance value and three-phase unbalance rate, thus can significantly reduce test time for DC resistance of transformer, solve the problem of long test duration for DC resistance of each tapped winding of electric power transformer. It requires only 1/3 of the time required by traditional method
Technical index
1. Output current: select current automatically (maximum 20 A)
2. Range ability: 0-100
3. Accuracy: 0.2% ±20-100
4. Minimum resolution: 0.1
5. Working temperature: -20-40
6. Ambient humidity: 80%RH, no condensation
7. Working power supply: AC220 V ±10%, 50 Hz±1 Hz
The Transformer short-circuit impedance tester comes with an adjustable power output. Regardless of single-phase or three-phase transformers, only one connection is required, and the instrument can complete the measurement of all winding pairs. The test and connection are simple.
Main technical indicators and conditions of useï¼?
Measurement accuracy: voltage, current: 0.2 level
Power: COS>0.1: 0.5 grade; COS 0.1: 1.0 grade
Impedance: COS>0.1: 0.5 grade; COS 0.1: 1.0 grade
Voltage measurement range: AC 3V300V
Internal power output range: voltage 0~250V, current 0~10A
Oil trace moisture tester This instrument is able to work more reliably and conveniently by using the most advanced control circuit and 32 bit embedded microcontroller processor as the master control core and utilizing embedded mini operating system.
This instrument is carefully designed and developed by the relevant technical personnel of our company according to the needs of power users. The product is beautiful in appearance and easy to carry and use. It replaces the traditional bulky test instruments and test methods and is very popular among professionals.
1. Small size and light weight.
2. The measurement process is safe and fast and the measurement result is accurate.
This instrument is carefully designed and developed by the relevant technical personnel of our company according to the needs of power users. The product is beautiful in appearance and easy to carry and use. It replaces the traditional bulky test instruments and test methods and is very popular among professionals.
1. Small size and light weight.
2. The measurement process is safe and fast and the measurement result is accurate.
443 Tools Instruments Suppliers
Short on time? Let Tools Instruments sellers contact you.
