Partial Discharge Testing

Product description

Partial discharge test system is mainly used for testing frequency voltage insulation level of various insulation materials insulation structure and electrical products also as partial discharge frequency testing power supply for testing object such as transformer mutual inductor and lightning arresters. It widely used in electrical manufacturing power operation departments research institutes and universities.

Technical Parameters:

Rated Capacity

5-1000kVA

Impedance Voltage

10%

Input Voltage

AC 220V/AC 380V

Output Voltage Waveform

Power frequency sine wave

Output Voltage

AC 0-1000kV

Surface Temperature

Oil immersed:

Product Introduction
YDW series PD tester system is mainly used for testing frequency voltage insulation level of various insulation materials insulation structure and electrical products also as partial discharge frequency testing power supply for testing object such as transformer mutual inductor and lightning arresters. It widely used in electrical manufacturing power operation departments research institutes and universities.
product features Product Characteristics
A variety of control methods and insulation methods can be used to configure freely according to user demand.

Build-in multiple frequency power generator is used for testing partial discharge value of high voltage transformer.The system has a built-in multi- frequency power generator which can be used to measure the discharge of high voltage transformer.

Manual control operation is intuitive easy to use maintenance low price.

It has gas insulation transformer oil insulation dry epoxy resin insulation and other forms test transformer can choose and match according to user's demand.

According to the user's requirements different sets of measuring instruments can be configured to meet the requirements of different precision and analysis faults.



Automatic control system can be used in different configurations of the bureau and the results can be automatically detected and analyzed.

Product Introduction
YDW series PD tester system is mainly used for testing frequency voltage insulation level of various insulation materials insulation structure and electrical products also as partial discharge frequency testing power supply for testing object such as transformer mutual inductor and lightning arresters. It widely used in electrical manufacturing power operation departments research institutes and universities.

product features Product Characteristics
A variety of control methods and insulation methods can be used to configure freely according to user demand.

Build-in multiple frequency power generator is used for testing partial discharge value of high voltage transformer.The system has a built-in multi-frequency power generator which can be used to measure the discharge of high voltage transformer.

Manual control operation is intuitively easy to use maintenance low price.

It has gas insulation transformer oil insulation dry epoxy resin insulation and other forms test transformer can choose and match according to user's demand.

According to the user's requirements, different sets of measuring instruments can be configured to meet the requirements of different precision and analysis faults.



An automatic control system can be used in different configurations of the bureau and the results can be automatically detected and analyzed.

Product description

Digital detector partial discharge test and the sensorwith the software using advanced signal processing technology covering a wide range of statistical methods and graphical display mode and coming with highenergy lithium batteries can flexibly achieve the detection of transformer partial discharge signals and ultrasonic signals capable of full range of detection for the transformer's partial discharge.

Partial discharge detection location detect the partial discharge changes in the transformer's internal during the operation by examining the partial discharge conditions of the device to analyze the insulating state of the transformer.



Echnical parameter

Number of channels: 4 independent measurement channels (scalable) and 1 external trigger input channel.

Sampling rate: 200MSa / s

Sampling accuracy: 12bit

Host Screen size: 6.5 inches

Operation: mouse keyboard touch screen

Host interface: 2 USB ports 1 Ethernet port 1 VGA port.

Synchronous Frequency range: 30Hz ~ 1MHz

Power Mode: Built-in lithium battery or external AC power supply (AC220V 50Hz)

Measurement content: Discharge magnitude (Q) the discharge phase (?) the discharge density (N)

Data processing sampling period: 1s

3 amplitude-time a relationshipmagnitude-phase relationship number of discharges-phase relationship

Charging power supply: AC220V; 50Hz frequency

System design life: more than 10 years

Product Introduction

Digital PD Detector Partial Discharge Testing


Digital PD Detector Partial Discharge Testing Product Overview

The transformer partial discharge detection device and the sensorwith the software using advanced signal processing technology covering a wide range of statistical methods and graphical display mode and coming with highenergy lithium batteries can flexibly achieve the detection of transformer partial discharge signals and ultrasonic signals capable of full range of detection for the transformer's partial discharge.

Partial discharge detection location detect the partial discharge changes in the transformer's internal during the operation by examining the partial discharge conditions of the device to analyze the insulating state of the transformer.

High frequency current transformers (pulsed current method) an ultrasonic sensor (ultrasonic method).
Through a variety of means to suppress various external noise interference it improved signal to noise ratio and the measurement accuracy.


product features Product Characteristics


Digital PD Detector Partial Discharge Testing Working Condition


Altitude 3000m
Environmental Temperature -20~60C
Relative Humidity 95%

Product Introduction

Digital PD Detector Partial Discharge Testing


Digital PD Detector Partial Discharge Testing Product Overview

The transformer partial discharge detection device and the sensorwith the software using advanced signal processing technology covering a wide range of statistical methods and graphical display mode and coming with highenergy lithium batteries can flexibly achieve the detection of transformer partial discharge signals and ultrasonic signals capable of full range of detection for the transformer's partial discharge.

Partial discharge detection location detect the partial discharge changes in the transformer's internal during the operation by examining the partial discharge conditions of the device to analyze the insulating state of the transformer.

High frequency current transformers (pulsed current method) an ultrasonic sensor (ultrasonic method).
Through a variety of means to suppress various external noise interference it improved signal to noise ratio and measurement accuracy.


product features Product Characteristics


Digital PD Detector Partial Discharge Testing Working Condition


Altitude3000m
Environmental Temperature -20~60°C
Relative Humidity 95%

Working Principle

When measured piece Cx has partial discharge under testing voltage the circuit will have pulse current which get by the input unit. The pulse signal is amplified by front amplifier and the frequency band is chose by filter amplifier then been amplified to needed amplitude by the main amplifier. The pulse signal will be displayed on oscillograph screen. The pulse value is also sent to the pulse peak meter and displayed immediately. The time window unit chooses a working period of the pulse peak meter during each cycle of testing voltage and it increases the brightness of the relevant displaying area in this time. In this way it can avoid the disturbing of fixed phase.

Input discharge volume to the measured piece Cx through JZF series PD external calibrator adjust the fine adjusting knob till the displayed value is equal to the discharge volume the discharge can be read directly and conveniently on the meter without counting.

The testing voltmeter will have an over zero mark signal of testing voltage through the voltmeter resistance R and the zero mark pulse will be displayed on oscillograph screen. The testing voltage can be displayed on KV meter.

Product Introduction
TKJF fit for many products it has high sensitivity high S/N a large screen which has clear testing wave displaying high frequency ellipse scan (the power is less than 1VA). auxiliary zero marking system. The discharge meter has pointer/digital display and linearity /digital function. The amplifier has large dynamic range 9 kinds of frequency band combinations.

TKJF is a powerful tool for developing new high voltage electric products and improving the quality of the products. It is also an efficient testing device to judge the work condition of equipments on the work field. This device is used together with model JZF-9 or JZF-10 calibrator.




product features Product Characteristics
Working Principle

When measured piece Cx has partial discharge under testing voltage the circuit will have pulse current which get by the input unit. The pulse signal is amplified by front amplifier and the frequency band is chose by filter amplifier then been amplified to needed amplitude by the main amplifier. The pulse signal will be displayed on oscillograph screen. The pulse value is also sent to the pulse peak meter and displayed immediately. The time window unit chooses a working period of the pulse peak meter during each cycle of testing voltage and it increases the brightness of the relevant displaying area in this time. In this way it can avoid the disturbing of fixed phase.

Input discharge volume to the measured piece Cx through JZF series PD external calibrator adjust the fine adjusting knob till the displayed value is equal to the discharge volume the discharge can be read directly and conveniently on the meter without counting.

The testing voltmeter will have an over zero mark signal of testing voltage through the voltmeter resistance R and the zero mark pulse will be displayed on oscillograph screen. The testing voltage can be displayed on KV meter.

PDG-1000 provide continuously monitors of partial discharge (PD) in equipment such as transformers, cables in switchgear and rotating machines etc.

It analyzes RF emissions in the HF, VHF and lower UHF ranges by sensors outside the cabinet. HMI unit provides site display of TEV amplitude, ultrasonic amplitude, DO port can drive local alarms, Multi-level alarm notice site engineer. PDG-1000 also can communicate data and notifications across standard RS485 modbus interface to networked supervisory systems.
Rugged, compact design sensor detect TEV and audible ultrasonic.
Non-intrusive and wall-mounted unit design, magnetic adsorption easy installation.
Panel mount HMI unit provide automatic PD data acquisition and analysis.
HMI support max 96pcs sensor, optional wireless and wired(RS485) connection.
Multiple configurable alarms, provide 2*DO NC & NO contact for external alarm trig.
RS 485 MODBUS-RTU easy integration into existing SCADA systems.