Very Low-Frequency high voltage generator 30KV combines advanced technologies such as modern digital conversion, full computer control, automatic voltage increase, voltage reduction, measurement and protection. In the automatic upgrade process, human intervention can be taken care of. The main advantages include full electronics, small size, light weight, large-screen LCD display (clear and intuitive), printer output test report, and easy use.
Technical Parameter
1 output frequency 0.1Hz 0.05Hz 0.02Hz 0.01Hz
2 Loading capability : Table 1 for reference
0.1 Hz maximum 1.1F
0.05 Hz maximum 2.2F
0.02 Hz maximum 5.5F
0.01 Hz maximum 11.0F
3 accuracy :± (3% of full scale +0.5 KV)
4 voltage waveform distortion 5%
5 condition of use : indoor, outdoor; temperature : -10+40humidity 85%RH
6 power supply AC50 Hz 220V +5%
7 power fuse : output rated voltage Table for reference
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
This instrument is an instrument which is specially used for transformer loss parameters and line frequency parameters testing. The instrument has the advantages of ingenious design excellent performance and powerful functions. The interior adopts advanced multi A/D synchronous sampling and digital signal processing technology and successfully solves the problem of multi-channel signal synchronous measurement and calculation. The instrument adopts large screen liquid crystal display Chinese menu prompt simple operation equipped with high-speed thermal printer and has storage function convenient for data storage and printing. The instrument is small in volume light in weight easy to carry and is very convenient to use in the field. It greatly reduces the labor intensity of the experimenters and improves the working efficiency.
1. Large LCD display simple menu operation.
2. With thermal printer storage function.
3. Small volume and light weight suitable for field work.
Transmission Line Test System is a new generation power transmission line frequency parameter testing system. It equips with frequency conversion testing power DFT Digital Filtering Technique which eliminates strong interference from power frequency electric field and ensures the safety of equipment convenient fast and accurate measurement.
1. Quickly and accurately test the positive sequence capacitance the positive sequence impedance zero sequence capacitance zero sequence impedance also can measure the mutual inductance and coupling capacitance between lines ;
2. High Anti-interference ability accurate and reliable measurement;
3. Easy operation equipped with large LCD and American rotating mouse and micro printer
4. Simple wiring only connecting with tested down leads to finish all line parameter measurement
5. High speed micro-controller as inner core integrated structure
6. Fast testing process one sequence parameter testing time is 1 min
7. Supplied with three groups different frequency power supply for selection: 42.5Hz/57.5Hz 45Hz/55Hz 47.5Hz/52.5Hz easily isolate the power frequency and noise wave to ensure high precision measurement of small signals.
Transformer winding deformation test instrument based on the measurement of the characteristic parameters of transformer internal winding the internal fault frequency response analysis (FRA) method which is being developed in developed countries is adopted to make an accurate judgment of transformer internal fault.
After the design and manufacture of transformer is completed the line coil and internal structure are determined. Therefore for a multi-winding transformer line coil if the voltage grade is the same and the winding method is the same the corresponding parameters (Ci Li) of each line coil should be determined. Therefore the frequency domain characteristic response of each line coil is determined accordingly and the frequency spectrum of the corresponding three-phase line coil is comparable to some extent.
The distribution parameters of transformer windings will change when short-circuit between turns and phases occurs in the test process or collision occurs in the transportation process resulting in the relative displacement of the line coil and the deformation of the line coil caused by electromagnetic tension in the short-circuit and fault state during the operation process. Then it influences and changes the original frequency domain characteristics of the transformer that is amplitude change of frequency response and resonance frequency offset. The transformer winding test instrument developed according to the response analysis method is such a novel non-destructive testing equipment for transformer internal faults. It is suitable for the internal structure fault detection of 63kV ~ 500kV power transformer.
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Volume (L/cu.ft.):338/11.93;
Net Weight/Gross Weight:286/306;
Temperature Control Rang:-40~-86
Pull Down Time to -86 at 30 4hrs;
Ambient Temperature SN (10 to 32);
Controller:Microprocessor;
Display:7'' Touchable LCD Display;
Temperature Sensor:PTC;
Compressors:SECOP/2;
Insulation Material:130mm PURF, Vacuum Insulation Panel Plus;
Outer Material:Painted Steel;
Chamber Material:Stainless Steel;
Outer Door:Foam, Sealing joint strip with magnetic force;
Outer Door Lock Safety door lock and password protection
Power Supplier 220V/50/60HZ, 110V/60Hz.
Impulse voltage generator is mainly used for impulse voltage test of power equipment such as lightning impulse voltage full wave lightning impulse voltage truncation wave and operating impulse voltage wave to test insulation performance.Impulse voltage generator a power supply device that imitates impulse voltages such as lightning and operating overvoltages.It is mainly used in insulation shock withstand voltage and dielectric shock breakdown and discharge tests.
Scope of application: standard lightning shock lightning cut-off wave for transformers reactors mutual transformers and other high voltage electrical appliances high voltage thyristor valve SVC(HVDC) power cables all kinds of high voltage insulators bushing operation shock and all kinds of non-standard shock wave impulse voltage test required by users.Various test waveforms (standard and non-standard waveforms user-generated waveforms) can be generated by a single set of equipment.Field of application: lightning protection and lightning test for quality inspection measurement inspection and supervision organizations power equipment manufacturers railway communications aerospace and aerospace vehicles military research units universities and meteorological departments.
900kV/67.6 kJ Lightning Impulse Voltage Generator Complete Test Equipment for Transformer Reactor Cable
450kV 20kJ High Voltage Impulse Voltage Test System for Lighting Test
Impulse Voltage Test System is used for the full-wave and cut wave tests of standard lightning impulse voltages for power transformers transformers reactors lightning rods switches bushings insulators and other test products with voltage classes of 35kV and below.
ZGS type DC high voltage generator used AIPWM technique adjusted the inaccuracy linearity of PWM technology let the instrument precision greatly improved. It is mainly used in the electric power department power department of industrial and mining metallurgy iron and steel enterprise for zinc oxide lightning arrester power cables transformers circuit breakers generators and other high voltage electrical equipment of DC withstand voltage test or DC leakage current test.
Product Characteristics
1ã??Dc high voltage generator adopts high frequency PWM technology to make closed adjustment with high voltage stability, small ripple factor and fast reliable protection circuit. The generator can endure direct discharge by devices of large capacitance. It is of small size and of light weight, convenient for field use.
This device adopts advance ARM+FPGA high precision D/A conversion and DDS technologies can set up and regulate parameters of voltage current frequency phase etc in a long period of time via analog closed loop feedback and digital PID control
1. Can be used to test errors and variance caused by voltage current waveform or power factor change for a variety of metering instrument such as energy meter voltmeter ammeter wattmeter frequency meter power factor meter phase meter
2. Can generate distorted wave with 2~32 order harmonic harmonic number order amplitude and phase position to base wave can be controlled by programs
3. Operational amplifier work frequency 40HZ~1kHz good linearity dual output protection High fidelity output signal and high shock-proof ability
4. With RS232 and USB(optional) communication interface for PC connection
5. With aluminum alloy carrying box which look nice and with little weight
Product Description
450kV 20kJ High Voltage Impulse Voltage Test System for Lighting Test
Impulse Voltage Test System is used for the full-wave and cut wave tests of standard lightning impulse voltages for power transformers reactors lightning rods switches bushings insulators and other test products with voltage classes of 35kV and below.
Product Characteristics
Rated parameter value
Rated nominal voltage ±450kV
Rated voltage ±150kV
Rated energy 20kJ
Total impulse capacitance 0.20F
The total series 3 series
Rated power capacity
The following waveforms can be generated when the load capacitance is 300~5000PF
2±30%/50 ±20%s Lightning impulse voltage full waveï¼?The efficiency of voltage 92%(no-load )
standard impulse voltage cut wave 2~6 The efficiency of voltage 92% (no-load)
The impulsevoltage waveform parameters all meet the requirements of IEC and GB311-97 national standards
Class voltage within 10% ~ 100% rated voltage range positive and negative synchronous range is not less than 20%.
Ignition range 10%ï½?100%
Synchronous discharge rate out of control 2%
Minimum output voltage 10un
Charging voltage instability ±1.0%
Service duration: > over 70% UN rated voltage can operate continuously every 90 seconds. Under the rated voltage of < 70% UN charging and discharging once every 45 seconds can run continuously.
Product Introduction
Designed for the requirements of the equipment it is widely used in the AC withstand voltage test of the 35-220kV class string-type voltage transformer of the power system to evaluate the main transformer from the insulation strength and also to the winding of the motor and the small transformer. Induction test; can also be used as a short-time 150Hz power supply.
product features Product Characteristics
1 the company's Triple frequency transformer is simple to operate reliable performance
2 can well meet the needs of transformers transformers withstand voltage
Product Introduction
Insulation boot (glove) withstand voltage is designed and manufactured by our company according to the test procedure of insulated boots (gloves) and in accordance with the opinions of users. Insulation boot (glove) withstand voltage uses automatic (lower) voltage to automatically read out the leakage current of each test item. The whole test process is completed automatically and the test data is automatically printed which effectively solves the irregular test method in the past. This simplifies the testing procedures and improves the testing speed. More reliable identification of the leakage current of the insulated boots (gloves) power frequency withstand voltage and other parameters. It is the ideal equipment for insulating boots (gloves) to ensure the safety of test workers. Its main features: test 6 test items at the same time and read the leakage current of each test item to accurately judge the unqualified test items; the test vehicle is equipped with casters at the bottom for easy movement using a large white light display under strong light Still clearly visible with a one-click shuttle easy to operate with a good interactive experience.
product features Product Characteristics
1 automatic and fast: the use of high-fine stepper motor to control the voltage regulator boost process according to the national standard test parameters fully automatic pressure test. After the test starts the instrument automatically closes and automatically boosts the boosting speed according to the national standard. It reaches the scheduled voltage and starts to count and keeps the test voltage. It automatically depressurizes the timer until the preset time. After zero the power is automatically turned off indicating that the test is over. Display each sample leak Current and display the test result
2 full-featured: full Chinese interface work status display simple and clear operation wide application; with status display with reminder function the user can see the status of the device at a glance; rotate the mouse operation all functions can be rotated by one Mouse setting all digital adjustment abandoned the old potentiometer adjustment mode the field is very convenient to use; button directly set the target Voltage leakage Current pressure time application freely
3 intelligent security protection: with Current over the protection of the Voltage. Accurate and fast protection ensuring the safety of personnel and equipment
HZ-3521 handheld meter field calibrator is a measurement of electrical parameters power meter calibration wiring judged as one of the high-precision test instrument.
Product Characteristics
3-phase energy meter calibrator introduction:
TKSX-3 handheld meter field calibrator is a measurement of electrical parameters power meter calibration wiring judged as one of the high-precision test instrument.
3-phase energy meter calibrator technical parameters:
Current measuring range: 0 ~ 5A built-in transformer into 5A (CT) files. Clamp transformer for the 5A (small pliers) 25A (small pliers) 100A (the clamp) 500A (the clamp) 400A (tongs) 2000A (tongs) six stalls. (Including medium and large Clamp Meter is optional)
This device adopts advance ARM+FPGA high precision D/A conversion and DDS technologies can set up and regulate parameters of voltage current frequency phase etc in a long period of time via analog closed loop feedback and digital PID control
1. Can be used to test errors and variance caused by voltage current waveform or power factor change for a variety of metering instrument such as energy meter voltmeter ammeter wattmeter frequency meter power factor meter phase meter
2. Can generate distorted wave with 2~32 order harmonic harmonic number order amplitude and phase position to base wave can be controlled by programs
3. Operational amplifier work frequency 40HZ~1kHz good linearity dual output protection High fidelity output signal and high shock-proof ability
4. With RS232 and USB(optional) communication interface for PC connection
5. With aluminum alloy carrying box which look nice and with little weight
1. Built-in digital multiple function standard meter with Integrated structure of meter and power source electrical parameters can be read via software
2. adopts DDS technology CPLD and RAM embedded system featured with high stability of signal source output small fineness low distortion
3. RAM system large color LCD display massive information can be seen directly through screen
4. use PWM digital power amplifier with above 90% efficiency and 300KHz carrier frequency to have advantages of low distortion little heating high efficiency
5. Perfect protection function: voltage short circuit alarm open circuit and over load alarm
6. Built-in OCXO for 50KHz high precision impulse output which can be used to calibrate energy meter clock also can test day error/hour segment error when matching with meter calibration software (optional)
7. With 485 communication interface can do various communications test for universal meters
