Ac Series Resonant Test System - China

AC Series Resonant Test System

Applications

Resonant Test Systems is applied for the generation of a continuously variable alternating (AC) voltage of a fixed

frequency (mainly 50 or 60 Hz) for high-voltage (HV) routine, type and development testing of capacitive test

objects.

They can also be applied for HV on-site tests, but POWER offers for that application the more economic

solution of frequency-tuned resonant test systems.

Capacitive test objects are cables, capacitors, gas insulated switchgear (GIS), but also large rotating

machines, instrument and power transformers (for applied voltage tests).

Resonant test systems enable not only

HVAC tests at 50/60 Hz, but also at higher or lower frequency (10-300 HZ) and dynamic tests with fast

voltage changes (e.

g.

for capacitors).

Because of their precise sine-wave, resonant test systems are very well

suited for the combinations of HVAC withstand tests with partial discharge (PD) measurement.

POWER adapts the

resonant test systems to the requirements of the relevant standards and the demand of the customer.

The main advantage of resonant test systems is the low power demand, because only the losses in the test circuit

must be replaced from the power supply.

The quality factor Q which is the relation between the test power S

and the loss power P ranges between Q = 10 and values up to 100, this means only 10 to 1 % of the test power

must be supplied.

A resonant test system is remarkably lighter, cheaper and more economic than an AC

transformer test system and should be applied if the test objects are capacitive.

In case of a disruptive discharge

the test object is not destroyed, because the systems goes out of resonance.

POWER resonant test systems

are characterized by a very modern system configuration and have proven highest reliability.



Tunable inductance reactor modules for series resonant circuits are available between 250 and 1200 kV and test

power between 1000 and 20000 kVA

Tunable frequency modules for series resonant circuits are available between 100 and 1600 kV and test power

between 50 and 9000kVA.

(Typical Frequency adjustment between 20-300 Hz) Additional features and accessories:

Resonant circuits with variable frequency

low voltage power filter

Partial discharge (PD) measuring system including blocking impedance)

Compressed gas capacitor

Capacitance and dissipation factor measuring instrument

Moveable design

Made solution upon customer's request

CNME produces several lines of power frequency output HV AC Dielectric Test sets, Transformer Routine Test, HV DC Dielectric Test, etc.

These testers perform AC withstand testing to verify the AC voltage integrity of insulation.

We can also supply Gas Insulated AC Testing System and High Voltage Impulse Generator, if you want Electrical Equipment Test, you can call us at any time.

Company Contact:

• Posted By: CNME Intermational Co.Ltd

• Phone: +862962393719

• Address: No.E128 HuanCheng Nanlu Road, xian , Shanxi , China

• Email:

• Website: https://www.cnmeic.com/

• Business Description: CNME International Co., Ltd. (abbr.
  
  as CNME) is a joint-stock and Hi-Tech company with the authorized license for international engineering and foreign trade.
  
  Established in 2002, CNME works especially in international projects and foreign trade, and as a core division of China Qiyuan Engineering Corporation (abbr.
  
  as CQEC) which is one of the ten strongest scientific and technological companies in the State-owned Assets Supervision and Administration Commission of the State Council of China (SASAC).
  
  CNMEs business activities cover national and international engineering, turn-key services, foreign trade, equipments supervision and so on.
  
  The activities consist of the industries of high voltage power transmission and distribution, diesel power generation, thermal power generation, high voltage and mass capacity testing system, middle and low voltage test system, environmental protection, engineering survey, bulk cargo terminal, cement facilities, mine exploitation, highway, sugar making, special electrical engineering equipments, industrial kilns and furnaces , etc.
  
  CNME has formed an experienced technical staff for the related business.
  
  In the past decade, CNME has developed about 100 patents and know-how techniques for the design and engineering of heavy duty workshops, high voltage power transmission and distribution systems, diesel generation stations, high voltage and mass capacity test laboratory, large and high air-conditioned workshops, environmental protection and control, special electrical engineering equipments, industrial kilns and furnaces, engineering survey and petrology, power supply and distribution of bulk cargo terminals and so on.
  
  Therefore, CNME has been honored with lots of awards from the state, ministry and province authorities for the up-to-date technology and excellent projects.
  
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