24/05/2017
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Engineering and Science>Electrical Systems >
High Voltage Test Equipments
Products & Utilities
- Modular Test System (AC, DC & Impulse)
- Power Frequency Test System
- High Energy Impulse Test System
- High Voltage Resonant Test System
- PC Based System for Partial Discharge Detection and Analysis
- Portable High Voltage Test Equipment

1. Modular Test System (AC, DC and Impulse)

The modular test system is based on portable and light elements which can constitute suitable circuits to provide AC, DC, and impulse voltages. For example a DC test system is based on an AC voltage transformer which charges HV capacitors with a DC voltage through HV diodes and resistors. These systems provide high DC voltages to test HVDC facilities, long AC cables, capacitors and
so on.
 
        
       AC                           DC                                      Impulse
U1: 0-220 V AC                   140-400 kV DC                                   125-375 kV Impulse
U2: 100-300 kV AC              Standard: IEC 60                                P: 100-300 J            
P: 5 kVA                                                                                          Standard: IEC 60                             
Standard: IEC 60

2. Power Frequency Test System
 
AC test systems consist of modular transformer units that can be cascaded up to three stages to get higher voltages ranging up to 1200 kV. Our AC test systems can be provided with low or high power ratings. Small AC test systems with low power are mainly suitable for performing dielectric tests, whereas large systems with high power can be used to carry out additional tests such as high voltage withstand tests.
 
     
     (Energy Research Institute)                              (Iran Switch Co.)
                  U1: 0-500 V AC                                                            U1: 0-500 V AC
                  U2: 0-800 kV AC                                                           U2: 0-600 kV AC
                  P: 800 kV A                                                                  P: 200 kV A
                  Standard: IEC 60                                                          Standard: IEC 60

3. High Energy Impulse Test System

Application:
- JDEVS impulse test systems can be used to generate impulse voltages from 20 kV to some MV simulating lightning strokes and switching surges for type tests of high voltage electrical apparatus.
 
Operation:
The impulse test system operation under a control system witch chargers the impulse generat charging unit. The charging time and charging
voltage can be selected during this process the stage in the impulse generator are connected in parallel via the charging resistors.
Once the selected charging voltage has been reached, a trigger pulse ignite the first spark gap of the impulse generator.
The resulting over voltage ignite the successive stages. After all the spark gaps have been fired, all the stages are connected in series thus multiplying the charging voltage.



4. High Voltage Resonant Test System

AC resonant test systems are especially valuable in any application where the load is largely capacitive with low loss such as HV cables, GIS, and generator windings. They are built for indoor applications.
Orders are accepted for any voltage and output power as requested.

 


                                           (Pars Generator Co.)
                                             125 kV / 1 MV A

5. PC Based System for Partial Discharge Detection and Analysis

Partial discharge (PD) measurement is a non-destructive insulation test of HV equipment. It is a vital test for several HV apparatuses according to IEC standards. The PC based system is applicable for PD measurement of equipment such as HV capacitors, transformers, insulators, cables, and electrical machines. In this system, PD pulses generated in the test-object are transmitted to the PC based PD meter, which consists of a high-speed A/D card, a software environment for PD signal processing, an external calibrator and an external synchronizing system. This system has several features to achieve superior performance.

  


6.
Portable High Voltage Test Equipment

The portable AC voltage test system consists of two separate unites: a control panel and a high voltage transformer with a voltage divider. It’s capabilities are as follows:
- Compatibility to provide high DC voltage tests
- LV and MV insulation tests at any location in the factory and before operation on the site
- Light weight
- Easy operation
                                                       U1: 0-220 V               U2: 0-75 kV
                                                       I1: 4.5 A                    I2: 13 mA
                                                       f: 50 Hz                     P: 1 kVA
                                                       % uk < 5                    PD < 5 PC

 -----------------------------------------------------------------------------------------------------------------
 New Products:

High Energy Impulse Generator 1800 KV/180 KJ

- Client: niroo research institute of iran (NRI)
- Manufacturer: JDEVS (High Voltage Center)

Technical Specifications:
- Generating and measuring of lightning and switching impulses according to IEC60060-1 (2010)
- voltage: 1800 kv
- Energy: 180 kJ
- Possibility to upgrade up to 2600 kV / 260 kJ
- Impulse Analyzer system
- Automatic controller

 




 
Short Circuit Test Equipment (Synthetic Method)

- Tavanir Co.
- Manufacturer: JDEVS (High Voltage Center)

Technical Specifications:
- Carrying out the short circuit tests on MV circuit breaker up to 36 kV / 31.5 kA
- Making and breaking test on MV circuit breaker
- Capability to do T10, T30, T60, T100 s tests
- According to IEC62271-100 , IEC62271-100
- Equipped with Automatic controller





 

 
Our offerings :
Finished Product
Consultation
Commissioning
Repair
Retrofit/ Upgrading
Training

The ACECR affiliate in charge:
Iran University of Science and Technology Branch (JDEVS)
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