Universal Partial Discharge Measurement and Analysis System

• Customization: Available
• After-sales Service: Lifetime Service
• Warranty: 12 Months
• Model NO.: CYJF-127
• Power Interface: 6-12VDC (<6W)
• Input Interface: Voltage Input Signal, Partial Discharge Input Sign
• Frequency Range: 5kHz-16MHz
• Input Impedance: 100Ω/120Ω
• Square Wave Output Waveform: Tt≤60ns 100ns <Ts<200ns
• Trademark: KIYU POWER
• HS Code: 9030339000

Product Description

Partial discharge refers to the electric discharge which happens between electric pole and doesn't penetrate electrode, and includes the repeated breakdown and extinguishment under the action of high electric field intensity on account of the weakness in equipment insulation or the defects generated in production process. It is manifested as the breakdown of air in insulation, the partial breakdown of solid or liquid media within small scope, or partial breakdown and discharge resulting from field strength concentration of edges and sharp parts on the surface of metal, etc. Such discharge generates very small energy, so, its transient presence doesn't affect the insulating strength of electrical equipment. If the partial discharge continuously happens to the insulation of electrical equipment at operating voltage, these weak discharge will generate accumulative effect which would gradually deteriorate the insulated dielectric property and expand the local defects, finally resulting in the whole insulation breakdown.

CYJF-127, a type of high-precision, modular and all-digital portable acquisition and analysis system of partial discharge with optical fiber isolation, is composed of a detection impedance, master acquisition unit, optical fiber and fiber optic transceiver, integrates the latest acquisition and processing technology of digital signal, and can provide very high measurement accuracy in harsh environment by virtue of high-resolution digital processing technology and optical fiber isolation technology.

Performance Parameters:

1)Master acquisition unit
a) Interface
Power interface: 6-12VDC (<6W), quick plug with lock;
Optical fiber interface: Support of Gigabit network access;
Input interface: Voltage input signal, partial discharge input signal and square wave output signal (optional).
b)Indicato Light 1XLED
normally on and flicker (power supply indication and communication indication);
15s interval flicker (failure to set up link with the upper computer).
c)Environmental conditions Working 
temperature: -10~60°C;
Storage temperature: -10~70°C;    
Humidity: ≤90% (non-condensation).
d)Partial discharge input
Frequency range: 5KHz-16MHz;
Input impedance: 100Ω/120Ω;
Maximum voltage: 50V peak-to-peak value;
A/D: 14bit,80MS/s;
Dynamic range: about 62dB in total;
Range control: X0.04,X1,X5,X25,X125,X250,X1250; 
Self-noise is less than 50uV.
e)Voltage input
Frequency range: 30Hz-500Hz
Input impedance: 1MΩ;
Maximum voltage: 50Vrms;
A/D: 24bit, 20kHz.
f)Square wave output(optional)
Output frequency: 600Hz;
Output waveform: Tt≤60nS 100nS <Ts<200nS;
Output gear: ±5pC/10pC/20pC/50pC/100pC/200pC/500pC/1000pC.
2)Battery
a)Charge input: 8.4V/5A;
b)Battery output: 7.4V/15Ah;
e)Power adapter: 8.4V/5A (directly used as the host power supply)
Remarks: If battery isn't used for a long time, please store the device on a full charge, and supplement power every 3 months.
3)Communication interface
a)Gigabit Ethernet LAN interface
b)SFP optical fiber interface
c)Receiver USB2.0;
4)Test impedance
a)Rated current: 0.5A;
b)Bandpass range: 17KHz~6MHz ±10%;
c)Low-pressure arm output voltage: ≤50VRMS (please increase the internal low-voltage arm capacitance in case of surpassing the voltage).

Company Profile:
KIYU POWER WUHAN CO., LTD., founded in 2002, is among the earliest brands in the field of electrical power testing in China. With over 22 years of proficiency in the design and manufacture of high-voltage test equipment, the company has created a unique position for itself in the industry.

KIYU POWER provides precise and efficient testing solutions for a broad spectrum of applications, such as power transformers, circuit breakers, GIS, CT/PT, surge arresters, insulators, cables, transformer oil, and insulating materials.

Boasting a cutting-edge facility spanning 26,000 square meters, KIYU POWER guarantees the production of high-quality equipment that conforms to international standards. It also has a professional and efficient technical R & D team that aspires for excellence. They possess in-depth professional knowledge and extensive practical experience, enabling them to offer customized testing solutions for clients. Additionally, it holds numerous technical patents, which earns us recognition and respect in the market.

The products of KIYU POWER have been continuously exported to various countries and regions globally. These successful cases not only bear witness to its technological capabilities but also showcase our contributions to the global electrical power testing industry.