300kv/30kj Impulse Voltage Test System

• After-sales Service: 1 Year
• Warranty: 1 Year
• Max Diameter of Workpiece: Other
• Mass Scope of Workpiece: Other
• Type: Impulse Voltage Test System
• Maxcapacity: Other
• Model NO.: ZH
• Accuracy Grade: 0.5
• Load Way: Other
• Loading Method: Other
• Display: Digital
• Control: Computer Control
• Weight: 0-100Kg
• Power Source: AC220V
• Oil Cylinder Position: Other
• Rated Voltage: 300kv
• Rated Energy: 30kj
• Charging Voltage of Each Stage: 100kv
• Total Stage: 3, Stage Energy 10kj
• Rated Level Capacitance: 2.0UF(10kj), 100kv(Mwf100kv-2UF)
• Transport Package: Woodcase
• Specification: custom
• Trademark: zhenhuan
• Origin: China
• Production Capacity: 5000PCS/Year

Product Description

300kV/30kJ IMPULSE VOLTAGE TEST SYSTEM
I Description:
This impulse test system is used for carrying out lightning impulse voltage tests on HV apparatus at 35kV or below. The test is conducted with lightning, full wave, standard operating wave and carrier wave.
II Ambient condition

1. Altitude above sea level: less than 1500mm
2. Ambient temperature: - 15~+50ºC
3. Relative humidity: ≤90%
4. Must be equipped with reliable earthing point and shield room, earthing resistance <0.5Ω!

III System Instruction

1. Impulse Voltage Generator( 300kv/30kJ)

Specifications

1. Rated voltage: ±300kV
2. Rated energy: 30kJ
3. Charging voltage of each stage: ±100kV
4. Total stage: 3, stage energy 10kJ
5. Rated level capacitance: 2.0µF(10kJ), 100kV(MWF100kV-2µF) dry type full insulation sealing)
6. output waveform:
   1. standard lightning full wave: T1=1.2µs±30%, T2=50µs±20%, overshoot<5%, efficiency>90%. ±1.2/50μs standard lightning full wave, efficiency>90%.
   2. standard lightning chop wave: T1=1.2µs±30%, overshoot<5%, chop time: 2-6μs, dispersion<100ns
7. Duty cycle: Continuous working when the voltage is <80% rated, Discontinuous working when the voltage is >80% rated.
8. Synchronizing range: > 20%. 
9. Synchronizing discharge maloperation: <1%, Min output power: <10% of rated voltage
10. Base:2M x 1.5M(movable wheel).
11. Synchronous misoperation rate: less than 1%

Features

1. Structure

a.With Haefely company SGS series main loop circuit design, small type.
b. One cycle every min. of Low speed pinion and rack to adjust sphere gap. No noise, small attrition, the location is fast and accurate.
c. With spring-crimping and plug-in and out Wave adjustment resistance to fix, ensure reliability. The output waveform is smooth.
d. With pulse amplifier of control system, the Synchronous sphere gap has more than 20% trigger range. The trigger is more reliable and the automatic control is convenient.
e. Synchronous sphere gap trigger is no polarity effect. No need bilateral trigger.

1. Main Capacitors

a. High density Solid capacitor are adopted. Each capacitance is 1μF, DC working voltage is ±100kV, light weight and small size.
b. Deformation of capacitor under normal working status and environment is less than 1mm.
c. With solid insulating medium and shell of dry type full insulation sealing, without the problem of oil leak and deformation

1. Harmonic Components

a.Enough thermal capacity for Front resistor and Tail resistor, ensuring continuous operation of generator for long time.
b.Enough thermal capacity for charging resistor, ensuring continuous operation of generator for long time.
c.Slab structure of front and tail resistor. Constantan wire winding with noninductive. The outside is fastened by casting insulation resin.The joint is spring-crimping, easy installation.
d.The connector of front and tail resistor is cut from 3mm cooper wire.
e.There are 3 groups of front resistors, 3 groups of tail resistor for lightning impulse, 1 group harmonic inductor, 1group of charging resistor and protected resistor for operating impulse.

1. Charging power

1. Model No.: HD-100/50
2. Rated voltage: Un=±100kV DC
3. Rated current: 50mA at rated voltage
4. Voltage adjustment mode: silicon controlled module to adjust voltage, voltage adjustment range 0-100% of rated voltage.
5. Polarity conversion: change the direction of HV diode by manual
6. Input voltage: 220V single phase
7. Power frequency: 50/60 Hz
8. Power consumption: about 5kW

1. Weak Damp Capacitive Voltage Divider

1. Model No.: HDCR-300/600
2. Rated voltage: 300kV
3. Rated capacitance: 600pF
4. Capacitor quantity: 1
5. Capacitance of each section: 600pF (MWF400-600 pulse capacitor)
6. Square wave response: part response time <100ns, overshoot<10%
7. Voltage ratio: about 250
8. Divider ratio uncertainty: ≤1%

1. Measurement System

1. Model No.: DIMS-1000 Digital Impulse Measuring System
2. Input range: 120V to 1600V (impulse voltage)
3. Measuring error: ≤1%
4. Waveform measuring device: TBS1102B digital oscillograph. (option) (highest sampling speed: 1.0GS/s; bandwidth:100MHz; resolution: 8bit)
5. Record length 10k bytes, 2 channels
6. Waveform analysis:Industrial control computer workstation.
7. Impulse measuring softwares: waveform calculation and display; waveform comparison, enlargement, decreasing, and translation; waveform saving, invoking.
8. Accessories: high performance 100 times attenuator(2pcs); Insulating filter shielding   design.

1. Chopping Device

1. Model No.: 300kV/400pF
2. Rated voltage: 300kV
3. Capacitance: 400pF
4. Sphere gap: 250mm diameter hemisphere gap
5. Time delay mode: 2-6μs adjustable delay circuit to supply chopping trigger pulse(coordinated with HZCS2008 control system)

1. Control System

The main part adopts a fully automatic control system, which fully meets the control function of the impact test. The control system adopts imported devices, and the connection with the main body of the equipment adopts two-core optical cable..

1. The core components of the control system are sourced from FX2N series programmable controller of Mitsubishi from Japan,With manual and automatic control functions, and almost all the control function can be realized by software program.
2. Three ways to operate the control and measurement system including manual operation, automatic operation and PC control, so as to improve system reliability.
3. Fiber connection between control &measurement equipment and high voltage equipment. With this way, electromagnetic interference caused by control lead is eliminated and system function is improved.

Main parts of Automatic Control System

Name	Function	Position
Control cabinet	Providing with control commands	On the base of the generator body
Pulse amplifier 1	Generator body sphere gap triggering	On the base of the generator body
DC blocking capacitor	Blocking DC high voltage of trigger impulse	Near the first sphere gap of the generator
Ignition feedback voltage divider	Detecting the conditions of generator sphere gap	On the base of the generator body
DC voltage divider	Measuring the charging voltage of generator	On the base of the generator body
Minor Operation unit(optional)	Control commands specification output and status display	On the control cabinet
Main Operating unit	Control commands specification output and status display	On the control table of the control cubicle
Two-cored multimode optical  fiber	Connecting control cubicle with main operation unit

Control system can be controlled manually, automatically or by program. The control system has the following control functions.
Measurement display:

1. DC charging voltage
2. Transformer primary current
3. Generator sphere gap
4. Chopped clearance sphere gap

Status display:

1. Connect and disconnect status of Main power supply contactor
2. Switching status of grounding system
3. Triggering status of generator sphere gap
4. Polarity status of generator charging voltage

Features of Control system:

1. With manual, automatic and program control functions. Each level functions are independent.
2. Silicon control voltage regulation, with charging voltage feedback measuring system.
3. Ignition gap distance can be adjusted manually or automatically, which will be displayed on LCD screen.
4. With a ignition trigger feedback system.
5. Function controlled constant-current charge which the voltage stability can be reached to 0.5%.
6. Indicator of charging voltage and process of impulse generator, accuracy is 1%
7. Charging voltage and time can be input.
8. With abnormal charging protection function.The ignition impulse can be triggered automatically or manually.
9. Operation status indication of generator, such as self- ignition, un-triggered, abnormal charing, stable charging etc.
10. Main body and charging parts grounding and un-grounding.
11. Automatic charging voltage polarity reversal by buttons on the controller.
12. Automatic or manual control of charging process for charing voltage.
13. Automatic or manual alarm.

Protection and Interlock

1. Over-current protection
2. Over-voltage protection
3. Charging abnormal protection
4. Door switch interlock
5. Grounding interlock
6. Polarity conversion interlock

Operation prompt
With various kinds of operation prompt. When system is mistake or mis-operating, the prompt will be appeared accordingly.
IV System packing list

No.	Name	Description	Qty
1	Impulse Voltage Generator(including DC Charging Power Supply)	300kV/30kJ	1set
2	Weak Damped Capacitive Divider	300kV/600PF	1set
3	Automatic control system		1set
4	Chopping device	300kV	1set
5	Digital impulse measuring system		1set
	Impulse peak value voltmeter	IPM23	1set
6	Test lead		1set

V Applied Standards
GB/T 311.1 Insulation and coordinate of High Voltage Power Transmission and Distribution>                                                              GB/T 16927.1-1997 Technique of High Voltage Test General Requirements
GB/T 16927.2-1997 Technique of High Voltage Test Measurement system                         
GB/T 16896.1-1997 Digital recorder of High Voltage Impulse Test
ZB F24 001-90    Impulse voltage measurement Implementing Regulations
GB191           Packing&Storage mark
GB4208          Shell Protection Level
GB813-89        Oscilloscope and Peak Value meter for Impulse Test