Partial Discharge Detector

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.

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

The TKJF-208 hand-held partial discharge detector is used to detect the local discharge power supply in medium and high voltage equipment.If no discharge is detected it does not mean that there is no discharge activity in medium and high voltage equipment.Power discharges often have an incubation period and the insulation may fail for reasons other than partial discharge.If a significant discharge is detected in equipment connected to the medium-high voltage power system the equipment maintenance department should be notified immediately.



product features Product Characteristics

a) Screen display: high-contrast 3.5 TFT color screen.

b) Data storage: 1000 groups of test data can be stored.

c) Working power supply: embedded 8.4V lithium battery for 8hâ??s continuous operation.

d) Power supply: input 100-240VAC output 8.4V/3A charging time 3ï½?4h.

e) Boundary dimension:230 * 120 * 55(mm).

f) Instrument weight:1.5kg.

g) Environment temperature: -25-45

h) Storage temperature: -35-60

Complete configuration: host machine sensor AC adapter connecting cable and transport case.

Product Introduction

The TKJF-208 hand-held partial discharge detector is used to detect the local discharge power supply in medium and high voltage equipment.If no discharge is detected it does not mean that there is no discharge activity in medium and high voltage equipment.Power discharges often have an incubation period and the insulation may fail for reasons other than partial discharge.If a significant discharge is detected in equipment connected to the medium-high voltage power system the equipment maintenance department should be notified immediately.



product features Product Characteristics

a) Screen display: high-contrast 3.5 TFT color screen.

b) Data storage: 1000 groups of test data can be stored.

c) Working power supply: embedded 8.4V lithium battery for 8hs continuous operation.

d) Power supply: input 100-240VAC output 8.4V/3A charging time 34h.

e) Boundary dimension:230 * 120 * 55(mm).

f) Instrument weight:1.5kg.

g) Environment temperature: -25 45

h) Storage temperature: -35 60

Complete configuration: host machine sensor AC adapter connecting cable and transport case.

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 the measurement accuracy.


product features Product Characteristics


Digital PD Detector Partial Discharge Testing Working Condition


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

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.

Product description

Partial discharge comprehensive analyzer is the dedicated product to measure and analyze the insulation ability of electrical equipment. This system adopts modern electronic and computer integrated technology with the functions of signal amplification(analog signal, electronic signal, digital signal), filtration, data sampling, data processing, figure display, test report generation automatically so that it may finish the measurement, location and analysis of the partial discharge.



Technical index

Technical characteristics

Number of interfaces

Free-running 4 interfaces

Sampling rate

1M. 5M. 10M selected

Sampling accuracy

12bit

Range changing

-40dB, -20dB, 0dB, 20dB, 40dB ,60dB, totally 6 types

Measurement frequency range

3db bandwidth 10kHz 1MHz

Digital filtering

10kHz 1MHz freely selected

Program controlled filter subsection

Nonlinear error in the range

10%

Measurement range

0.1pC~100,000pC

Sensibility

0.1pC

Capacity range of the measured product

6pF 250 F

Frequency range of test power

50 500Hz

Display

Display screen

12 TFT true color touchable LCD screen

Resolution

1024 768

Interface

USB

3 types, use of external mouse, keyboard or other USB devices.

Power mode

AC 220V; Frequency 50Hz; Power 300W

Electric signal interface

4 BNC interfaces, use of signal input.

Optical signal interface

4 types, use of signal input

Network interface

1 type

Landing button

External landing

General instruction

CPU

Basic frequency 1.60GHz

Ram

2.0GB

Hard disk

128GB SSD

System

Windows Xp

Operating environment

Size

Weight

15.8kg

Product description
Partial discharge inspection instrument is a digital partial discharge charged detection instrument designed by our company based on years of experience in partial discharge measurement. It adopts two emerging technologies, ultra high frequency (UHF) measurement and ultrasonic (US) measurement. This system uses modern electronic and computer integrated technology to realize signal amplification, filtering, data acquisition, data processing, partial discharge parameter calculation, map drawing, and automatic generation of test reports, thereby completing the intelligent measurement and analysis of partial discharge. This device adopts handheld design and Wince system development; the device is lightweight, convenient to carry, fast to measure, and easy to use on the spot; it has friendly interface, simple operation, and high refresh rate; and the device has complete functions, strong anti-interference ability, and accurate measurement. This instrument has no damage to the power equipment to be tested during the testing process, and has no impact on the operation of the equipment. According to the maps obtained by the multiple detection modes of the UHF and US methods, the diagnostic analysis of the detection of insulation defects or hidden dangers of power equipment can be performed to clearly determine the operating status of the power equipment.



Technical index

Host parameters

Number of interfaces

2 interfaces 1 UHF interface 1 US interface

Sampling accuracy

12bit

Way of synchronization

Internal synchronization,External synchronization,

Light synchronization

UHF parameters

Measurement frequency range

300MHz-1.5GHz


Output method

Output with SMA head

Receiving method

Receive with antenna

Transfer method

Coaxial cable

Sensitivity

70dB

Mean sensitivity

50dB

Dynamic Range

80dB

Hardware

Display screen

4.3 TFT true color LCD screen

Resolution

480 272