Huazheng Electric Manufacturing HZJF-9008 User manual

HZJF-9008 Handheld Partial
Discharge Detector
USER MANUAL
Huazheng Electric Manufacturing(Baoding) Co.,Ltd

Safety Terms and Symbols
This manual may contain the terms:
Warning!
Indicate the conditions and actions that may endanger the life and safety of the operator.
Attention!
Indicate the conditions and actions that may cause product damage or data loss.
The product may contain the terms:
Danger: when doing this, it may hurt you.
Warning: when doing this, it may cause potential dangers to you.
Attention: when doing this, it may cause damage to this product or other device connected to this
product.
The product may contain the symbols:
High Voltage! Please refer to the manual! Protective Earthing!
Attention! Keep the safety distance with the live device on field when working!!!

Product Certification and Standards
This product is suitable for the partial discharge test of high voltage equipment, for example,
the safely isolated transformer.
Normative References
The terms in following documents are the standard terms after they are referred by this
standard. For the references with dates, all subsequent modifications (exclusive of error published
contents) or revised editions are not applicable to this standard. For the references without dates, the
latest version is applicable to this standard.
GB/T 2423 Environmental test of electrical and electronic products
GB/T16927 High voltage test technology
GB/T 17626 Electromagnetic compatibility test and measurement technology
GB 2421 Basic environmental test rules for electrical and electronic products
GB7354 Partial discharge measurement
GB 11022 General technical conditions for high voltage switchgear
DL/T 417 Guide for partial discharge field measurement of electric power equipment
DL/T 593 Common technical requirements for high voltage switchgear and control
equipment standards
DL/T 595 Preventive test rules for electric power equipment

Safe conditions and actions, and conditions and actions may
damage the product
Notice for Operations Security
Understand the following safety precautions to avoid injury and prevent product damage or
other products connected to this device. As to avoid possible dangers, please use this product in
accordance with the regulations.
Use correct charger!
Use the special battery charger of this instrument. Otherwise, it may damage the battery of the
instrument.
Don’t open the cover for operations!
Don’t open the instrument case and operate this product.
Don’t operate when the product is suspected of failure!
If you suspect this product fails, please contact our maintenance staff for inspection. Any
maintenance and adjustment must be carried out by the maintenance staff of our company.
Please keep the product surface dry and clean.
As to avoid the equipment performance affected by the dust or moisture in the air, please keep
the product surface dry and clean.
Notice for Transport Safety
In order to avoid the screen, press key, knob or interface parts on equipment panel damage due
to the dropping during transport, please pay attention to the safety during transportation.
Be careful when inspecting on site!
Be careful when inspecting on site, as to avoid being knocked off by the
equipment on field. Make sure to keep the safe distance from the high-voltage
electrified equipment on field to avoid working under high risk field strength.

Contents
I. Product overview.................................................................................................................................................... 1
II. Product configuration............................................................................................................................................ 1
III. Technical parameters...........................................................................................................................................1
1. Conditions of usage...................................................................................................................................... 1
2. Technical performance................................................................................................................................. 2
IV. Appearance of equipment................................................................................................................................ 2
V. Introduction of software operation...................................................................................................................... 3
1. Introduction of key and boot........................................................................................................................ 3
2. Introduction of TEV partial discharge measurement interface.............................................................. 4
3. TEV pulse-count measurement interface..................................................................................................4
4. AE partial discharge measurement interface............................................................................................5
5. Parameter setting interface..........................................................................................................................5
6. Data storage, query playback and synchronization-frequency setting interface................................6
7. Detailed introduction of each functional interface....................................................................................8
VI. Introduction of partial discharge measurement............................................................................................ 10
1. TEV measurement:..................................................................................................................................... 10
2. AE measurement:........................................................................................................................................ 11
3. TEV external synchronization measurement:.........................................................................................11
VII. Partial discharge configuration table of HZJF-9008 switch cabinet.........................................................12

1
I. Product overview
This handheld partial-discharge instrument is mainly used for the
detection of high-voltage electrical equipment. This product is simple to
operate and adopts portable structure design which can inspect on line. It
equips with specific sensors to detect various high-pressure devices, which
can detect the insulation state changes inside the equipment timely. So the
insulation failure could be dealt with in time
II. Product configuration
Items
Description
Display screen
3.5 inch color LCD display screen; display resolution: 320 x 240
Sensor
Built-in AE\TEV
External interface
AE\TEV external interface, external synchronization interface, headphone
jack, Micro SD card (16G), charging port, USB port (Backup Interface,
extensible)
Signal interface mode
Front-end built-in AE\TEV sensor;
External sensor (Backup Interface, extensible with Lemo connector)
Shape & size
Length × Width × Height (225mm × 100mm × 40mm)
Weight
0.5kg
III. Technical parameters
1. Conditions of usage
The instrument is internally installed 18650 lithium battery, and the ambient temperature
under normal use condition: -20℃- 60℃, charging environment: 0℃- 45℃, storage environment:
-20℃- 45℃.
Attention: The instrument must be shut down when charging. If the device is on
charge, it cannot be started up for measurement.

2
2. Technical performance
1) sensor: built-in TEV sensor, ultrasonic sensor
2) range of frequency band: TEV: 3M-60MHz; ultrasonic: 40KHz
3) measurement range: TEV: 0dB-80dB; ultrasonic: 0dB-40dB
4) Tap: TEV: 0 -3 tap, total 4 adjustable taps; ultrasonic: 1 tap
5) maximum pulse / cycle number: 600
6) measurement display: current real-time value, historical maximum value, real-time oscillogram,
fingerprint diagram, trend diagram, pulse count
7) trigger mode: internal / external synchronization trigger
8) Power-on self-test function
9) data storage, query playback and derivation functions
10) interference suppression function
11) alarm threshold setting and indicating function: partial-discharge alarm indication (the color
indicator bar at right side), tap shift indication (suggest shifting tap in case of red), battery
power-quantity indication.
12) working power supply: high-capacity lithium battery pack, working for 6 hours with one time
charge.
13) peripheral storage interface: 16G MicroSD card
IV. Appearance of equipment
4.1 Appearance diagram of handheld partial-discharge patrolling measurement instrument
No.
Instruction
1
Built-in TEV sensor
2
Built-in ultrasonic sensor
3
External sensor signal interface (using
the special signal-line to connect the
sensor, for expanding backup)
4
External synchronization interface
5
Headphone jack
6
Charging interface
7
USB interface
8
SD card slot

3
V. Introduction of software operation
1. Introduction of key and boot
Fig.5.1.1 Key
1. OK key; 2, direction key; 3, menu key; 4, start / pause key; 5, power key
As shown in the figure above, long press the power key on the lower-left corner of the keypad
panel to enter the self-checking screen as the figure below; after successful self-checking, the
program is started up and entered the partial discharge measurement interface.
Fig. 5.1.2 Self-checking screen when starting
3
4
5
2
1

4
2. Introduction of TEV partial discharge measurement interface
Fig. 5.2 Main interface of TEV partial discharge measurement
The main interface of software startup is as shown in the figure above, total 7 parts; ①sensor
measurement mode and gain display, ②partial-discharge indicating value (current value, maximal
value in turn), ③finger-print diagram, ④tendency chart, ⑤oscillogram, ⑥partial-discharge
warning diagram, ⑦display of electricity quantity.
3. TEV pulse-count measurement interface
Fig. 5.3.1 TEV pulse count measurement interface
It can be switched to TEV pulse-count measurement interface by press the right key on TEV

5
partial discharge measurement interface; the software interface is shown as figure above; and there
are total 4 parts; ①sensor measurement mode and gain display, ②partial-discharge waveform
display area, ③display of maximal value, ④pulse number / s.
4. AE partial discharge measurement interface
Fig.5.4 AE partial discharge measurement interface
It can enter the parameter setting interface by press the menu key on TEV partial discharge
measurement interface; press the up and down keys to select the sensor settings and press the left
key to switch to AE sensor; after choosing the save & exit key, press the OK key to exit the menu
and enter the AE partial-discharge measurement interface, as shown in figure above; and there are
total 6 parts; ①sensor measurement mode display, ②partial-discharge indicating value (current
value, maximal value in turn), ③oscillogram, ④tendency chart, ⑤partial-discharge warning
diagram, ⑥display of electricity quantity.
5. Parameter setting interface