Transformers Insulators Lightning Impulse Impact Generator Test System 300kv/15kj

• After-sales Service: Life Time Maintenance
• Max Diameter of Workpiece: 1800mm
• Mass Scope of Workpiece: 900kg
• Type: Universal Testing Machine
• Maxcapacity: 110
• Accuracy Grade: 1
• Model NO.: DWCJ-300KV/15KJ
• Load Way: Electronic Load
• Loading Method: Static Load
• Display: Digital
• Control: Computer Control
• Weight: 100-500Kg
• Power Source: AC220V
• Oil Cylinder Position: Under
• Transport Package: Wooden Case
• Specification: 1200mm*800mm
• Trademark: GOLDSOL
• Origin: Wuahn China
• HS Code: 9030339000
• Production Capacity: 10 Units/Month

Product Description

DWCJ-300kV/15kJ Full automatic impulse voltage generator

1. General
1.1 this parameter is applicable to the equipment for impulse withstand voltage test of 35kV and below high-voltage equipment. It puts forward the technical description of function design, structure, performance, installation and test of the equipment.
1.2 this set of equipment meets the current international standards, national standards and relevant industry standards.

2. Quoted standards
Insulation coordination of high voltage power transmission and transformation equipment (GB311.1-1997)
GB / T16927.1-1997 high voltage test techniques general test requirements
GB / T16927.2-1997 measurement system for high voltage test technology
GB / T16896.1-1997 digital recorder for high voltage impulse test
Implementation rules of ZB F24 001-90 impulse voltage measurement
GB 191 packaging and transportation marks
GB4208 protection grade of enclosure
GB813-89 oscilloscope and peak meter for impact test

3. Service conditions
The impulse voltage generator test system device is mainly applicable to the full wave withstand voltage test and chopped wave test of high voltage equipment < 35kV and below, and can also be used for the impulse test of other products.
3.1 the altitude shall not exceed 1500m
3.2 ambient temperature: - 15 ~ + 50 ºC
3.3 air relative humidity: ≤ 90%
3.4 installation and use place: indoor use, movable
3.5 there must be a reliable grounding point with grounding resistance less than 0.5 Ω!

4. Impulse voltage generator
4.1 main technical parameters of shock generator
4.1.1 nominal lightning impulse voltage: 300kV
4.1.2 nominal capacity (energy): 15KJ
4.1.3 capacitance: 0.33 μ F. 100 kV dry type full insulation package
4.1.4 voltage level: ± 100kV
4.1.5 series / capacity: 3 / 5kJ
4.1.6 output waveform:
1.2 μ s ± 30%/50 μ s ± 20% standard lightning impulse voltage full wave, efficiency ≥ 90%
250 ± 20%/2500 ± 60% μ S standard lightning impulse operation wave.
4.1.7 Synchronization range: more than 20%
4.1.8 Duration of use:
It can work continuously when the rated working voltage is less than 80%
It can work intermittently when the rated working voltage is greater than 80%
4.1.9 The error voltage difference of amplitude regulation is less than 1%, and the minimum output power is not more than 10% of the equipment nominal voltage.
4.1.10 synchronous error rate: less than 1%

4.2.1 Structure of generator
4.2.1.1 SGS series main circuit design of haefly company in Switzerland is adopted to realize the overall super miniaturization.
4.2.1.2 The low-speed rack and pinion transmission mechanism with one revolution per minute is adopted to adjust the ball gap at all levels, which is not only noiseless and less worn, but also fast and accurate in positioning.
4.2.1.3 The fixed mechanism of wave adjusting resistor with spring crimping and convenient plug-in ensures the reliability of contact and makes the output waveform smooth without burr.
4.2.1.4 With the pulse amplifier of igcs-2008 control system, the synchronous ball gap can have more than 20% trigger range to ensure the reliability of trigger, and the automatic control is convenient and reliable.
4.2.1.5 The trigger of synchronous ball gap has no polarity effect, and no bilateral trigger is needed.

4.2.2 Main capacitor
4.2.2.1 the main capacitor adopts high-density solid capacitor, and the capacitance of each capacitor is 1 ± zero point zero five μ F. The DC working voltage is ± 100kV, small inherent inductance, light weight and small volume, which is the first in China.
4.2.2.2 under normal working condition and working environment, the concave convex deformation of capacitor is less than 1 mm.
4.2.2.3 the capacitor is of solid insulating medium and dry-type full insulation package with no oil leakage, deformation and other problems.

4.2.3 Wave modulator
4.2.3.1 the resistance of wave head and wave tail has enough heat capacity to ensure the generator to operate continuously for a long time.
4.2.3.2 the charging resistor has enough heat capacity to ensure the generator to operate continuously for a long time.
4.2.3.3 the resistance of wave head and wave tail adopts plate-shaped structure, which is made of coreless wire. The external part is made of insulating resin vacuum casting, and the joint is spring crimping type, which is easy to install.
4.2.3.4 the connector of wave head and wave tail resistance is made of 3mm stainless steel wire cutting.
4.2.3.5 there are five groups of wave head resistance, five groups of wave tail resistance for lightning impulse, and one group of charging resistance and protection resistance.


4.2.4 Control and protection system
IGCS-2008 automatic control system is used to provide all kinds of control for the main part of impulse voltage generator, which fully meets all kinds of control functions of impulse test. Igcs-2008 control system adopts imported devices, and the connection with the main body of the equipment adopts two core optical cable.
4.2.4.1 IDCS-2008 automatic control system takes FX2N series programmable controller of Mitsubishi company as the core device, so the volume of the controller is very small, and the controller can realize manual control and automatic control. The special software package can be used for computer control to realize intelligent operation. The special software package can be used with peak voltmeter and oscilloscope for measurement and waveform analysis to realize the integration of computer measurement and control of impulse voltage test system.
4.2.4.2 the control system has the following control functions:
Using PLC technology, using two core optical fiber to transmit control commands and feedback equipment status, thus avoiding electromagnetic interference and improving the safety of control system and computer.
The control function has manual, automatic and program control functions, and each level function is relatively independent to ensure the reliability of the system.
Silicon controlled rectifier voltage regulation mode is adopted, with charging voltage feedback measurement system.
The distance between ignition ball gap and chopper ball gap can be adjusted manually and automatically, and displayed on the LCD panel.
It has a chopping trigger pulse with adjustable time delay and a feedback system of generator ignition trigger.
The stability of charging voltage can reach 0.5% by using function control constant current charging mode.
The LCD panel can indicate the charging voltage and charging process of the shock generator with an accuracy of 1%.
The charging voltage and charging time can be input directly from the LCD panel.
It has the function of abnormal charging protection, and can trigger the ignition pulse automatically or manually
Indication of the working state of the impact generator, such as spontaneous combustion, non triggering, abnormal charging, stable charging, etc.
The main body of the equipment and the charging part are grounded and grounded to release the control.
The charging voltage polarity can be automatically changed by the button on the controller
The charging process can be controlled automatically or manually
It can ring the alarm bell automatically or manually
With over-current and over-voltage automatic protection
Design of isolation filter shield
4.2.4.3 The first stage of synchronous ball gap is triggered by three electrode ball gap, and the trigger range is more than 20%.

4.2.5 Safety grounding system
4.2.5.1 Electromagnet automatic grounding mechanism is adopted to ground the first stage capacitor of generator through a grounding resistance.
4.2.5.2 The grounding operation and charging control have interlock protection to ensure safe and normal operation.

4.3.1 Rectifier charging power supply (integrated with impact body)
Model:  LGR-100/50
Rated voltage:  Un =  ± 100kV DC (positive or negative)
Rated current:  In = 50mA (at rated voltage)
Voltage control    SCR module voltage regulation, voltage regulation range 0 ~ 100% UN
Polarity conversion:  The direction of high voltage silicon stack can be changed
Input voltage:  220 V single phase voltage
Power frequency:  50/60 Hz
Power consumption:  5kVA

4.3.2 Weak damping capacitor voltage divider
Model:  CR-300/600
Rated voltage:  300kV
Rated capacitance:  600pF
Capacitance section number:  Section 1
Square wave response:  Partial response time is less than 100ns and overshoot is less than 10%
Partial pressure ratio:  According to the situation
Uncertainty of partial pressure ratio:  Less than 1%

4.3.3 Measuring equipment
Model:  Dims-1000 Digital Impact Measurement System
Waveform measurement:  Tektronix color high voltage digital oscilloscope imported from USA
The maximum sampling rate is 1.0gs/s, bandwidth is more than 100MHz, resolution is 8bit, 2 channels
Waveform analysis:  Industrial control computer (including display screen)
Special software package for impact measurement:
Calculation and display of shock wave parameters
Waveform comparison function
Amplification, reduction and translation of waveforms
Storage and call of waveform
Waveform mapping and report writing
Enclosure:  One high performance 100 times special attenuator
Wave adjusting resistor:
There are five groups of wave head resistance, five groups of wave tail resistance for lightning impulse, and one group of charging resistance and protection resistance.

5.Description of technical scheme features
5.1. The main stage voltage of SGS generator used in the scheme is 100 kV, which is in line with the current development trend at home and abroad. The main structure adopts the structural design of world famous company haefly, which is the most compact generator in China at present. It has the characteristics of small inherent inductance and convenient wave modulation.
5.2. The control and measurement system adopted in the scheme is a leading product in domestic technology at present. The core device is FX series programmable controller of Mitsubishi company of Japan. Almost all control functions are realized by software programming. Therefore, the system structure is simple, the peripheral circuit boards are very few, and the reliability is very high.
5.3. The integrated design of measurement and control structure, with LCD industrial computer, can realize automatic control of measurement and analysis. The measurement and control system is operated by LCD touch screen and has various status prompt pictures, which realizes the intelligent operation of man-machine dialogue. The system cancels the multi-core control cable, uses the optical fiber communication line, does not need to open the cable trench, makes the control room layout more simple and convenient.
5.4. The optical fiber control and transmission system adopted in the scheme is the first in the domestic high-voltage test equipment. It realizes the optical fiber connection between the control and measurement equipment and the high-voltage main equipment, effectively solves the harm of the ground potential rise to the measurement and control system in the high-voltage test, eliminates the electromagnetic interference caused by the control lead, and greatly improves the reliability of the system, Especially, the safety is better in the shock test of chopped wave and steep wave.
5.5. The operation interface of igcs-2008 control and measurement system adopted in the scheme fully considers the characteristics of high voltage test, which is simple and clear,
It is easy to operate. The system has designed a special program operation screen, which is convenient for the full wave and cut-off test of the transformer and greatly improves the efficiency
The operation of test personnel is simplified, and human error can be effectively prevented.
5.6. This set of impulse voltage generator test system adopts the most advanced technology, good process and high-quality raw materials, which can ensure long-term use, and the operation life is more than 20 years. The normal operation cost is also very low.

6.Equipment and accessories configuration list

Sr	Description	Unit	Qty	Remarks
1	DWCJ300kV/15kJ DWCJ300kV/15kJ Impulse voltage generator	set	1
2	LGR±100kV/50mA DC charging power supply (integrated with impulse voltage generator)	set	1
3	CR300kV/600pF Weak damping capacitor voltage divider	set	1
4	DIMS-2000 Full automatic digital impact measurement system (including Tektronixoscilloscope)	set	1
5	IGCS-2008 IGCS-2008 automatic impact intelligent control system	set	1
6	DWCJ Wave adjusting resistance: there are 5 groups of wave head resistance, 5 groups of wave tail resistance for lightning impulse, and 1 group of charging resistance and protection resistance	set	1
7	DWCJ Secondary attenuation	pc	1
Note	The products are constantly updated, and the pictures are only for reference. The final pictures are subject to the actual situation