Description

 

HDJF-S Partial Discharge Detector for Switchgear

 

 ~Operation Video: https://www.youtube.com/watch?v=JF7GbWRJoeg&t=147s

 

Introduction

Partial discharge detector does not cause the electric discharge of a completely short-circuited electrode. Such discharge usually has a very small amplitude value, but it will certainly cause the continuous deterioration of the property of the insulation layer and finally cause electric equipment fault.

The non-intrusive partial discharge detection, as a convenient and simple method, is used for identifying the potential insulation faults which may cause power cutoff or personal injury.

The most practical non-intrusive detection technologies are all based on the detection of the high-frequency signals and the ultrasonic signals in the electromagnetic spectrum. The product is an instrument which has simple operation and is specially developed for detecting the activities of electromagnetic waves and ultrasonic waves.

 

The difference between HVJF-S Series (HVJF-S, HVJF-S PRO, HVJF-S PRO01) ultrasonic partial discharge testers, please click to view. 

More information: 

1. Related Project, News, Video，please kindly click the letters to view: 

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PD Meter (Digital)

 

Parameters

Applicable scope	the non-intrusive mode is adopted to detect and locate the partial discharge defects of the high-voltage electric equipment.
Sensor configuration	Standard: UA, TEV Optional: Sensor network for transformer, high frequency sensor for GIS, sensor for high-voltage cable,or other senors customized according to user's requirements.
Detection principle	UHF (Ultra High Frequency) method, UA (Ultrasonic Analysis) method and TEV (Transient Earth Voltage) method.
Detection frequency band	UA: 40～200KHz TEV: 3~100MHz UHF: 300～2000MHz
Measurement range	UA: -90～80dB TEV: -80～10dBm UHF: -80～10dBm
Sensitivity	the minimum sensitivity is 10pC
Sensor	1. Ultrasonic sensor: 20～200(kHz); 2. EV (Transient Earth Voltage) sensor: 5 ~ 100MHz; 3. UHF sensor: 300～2000(MHz), with directional reception characteristic.
Instrument characteristics	1. Screen display: high-contrast 3.5”TFT color screen. 2. Data storage: 1000 groups of test data can be stored. 3. Working power supply: embedded 8.4V lithium battery for 8h’s continuous operation. 4. Power supply: input 100-240VAC, output 8.4V/3A, charging time 3～4h. 5. Boundary dimension: 220 * 100 * 40. 6. Instrument weight: 1.5kg. 7. Environment temperature: -25℃～45℃. 8. Storage temperature: -35℃～60℃.
Complete configuration	host machine, sensor, AC adapter, connecting cable and transport case

 

 

FAQ:

1. When can I get the price?

We usually quote within 6 hours work time after we get your inquiry. If you are very urgent to get price, please call us or tell us in your email so that we will regard your inquiry priority.

2. What about the delivery time for production?

Honestly, it depends on the order quantity and the product. Usually our leading time is within 7 working days after order confirmation.

3. What is your payment terms?

We accept EXW, FOB, CFR, CIF, DDU, ect. You can choose the one which is the most convenient and cost effective for you.

4. How much will the Shipping cost and time be?

This will depend on size of your goods and method of shipping (by sea/ by air/by Express) and your designated seaport or airport. We will be grateful if you can spare us some minutes to evaluate the cost based on the information of product.

5. Could you please tell me the Warranty Period of your product?

Our warranty period is one year free and lifelong maintenance. If the product is damaged (if not man-made damage), in the first year,we will send free parts for replacement. Over warranty, maintenance is paid service.

6. Do you have Technical Backup to all customers from different countries?

To be sure,our technical support is always available and quick response.
We are manufacturer with much on-site testing experience, thus we know how to deal with your problems. Moreover, our engineers can go to your country to support if needed.