Type Automatic Test Equipment for Anti-Jamming
type of equipment is used for measuring the dielectric
loss and capacitance of condenser of the various
kinds of high voltage electric power equipment
as a substitute for the QSI electric bridge.
Main features: There are PT
inside and the high voltage standard capacitor
making the wire connection easy.
This equipment is made by
adopting the testing theory of photo coupling
data sampling and connecting the vector operation
with the dephasing and the inverse method. It
can eliminate effectively the disturbance in
the electric field. It can be used quite well
on the spot and has the best performance with
the lower price among the same type of production.
Key technical indexes:
High voltage output: 2kV、5kV、10kV
Measuring range: tgδ＜50% 30pF＜Cx＜60000pF
Measuring range of the dielectric loss: 0.1
Resolving capability: tgδ: 0.01%
Degree of accuracy: tgδ1%±0.05%
Absolute error: tgδ0.03%
Integrated Precise Resistivity Detector for
Oil Medium Volume
Type High Degree of Accuracy SF6 Leak Detector
instrument is the patented product as the transformation
from the achievements in scientific research.
It is the best SF6 leak detector equipment in
China. The equipment is endowed with the strengths
from Germany and Japan’s experience and overcomes
weaknesses. This instrument can be applied to
the leak hunting of the SF6 switches in the power
supply department, the SF6 high voltage switch
gear factory and the electric testing and researching
institute. It is also can be used as the assorted
equipment of the electric device and export product
for the SF6 high voltage switch gear factory.
HRLF-ID Digital High Precision SF6 Gas Leak
Detector is the optimization product of our
company which is latest upgraded and designed.
It has the advantages of the high sensitivity
and stability. The testing operation is simple,
direct, fast and with a high response speed.
The search unit will never be poisoning and
cause poisonous gas. The high degree of automatic
instrument can display the gas strength by liquid
crystal screen which makes the reading data
more convenient and accurate.
When there is different strength of SF6 gas
and other halogen gas in the air, the ionized
degree of the mixed gas will be different under
the effect of the electromagnetic field of high
This instrument is mainly applied for the leaking
finding of equipment and container which are
filled with the SF6 and other halogen gas in
the ministry of water conservancy and electric
power, the manufacturing engineering of electronic
device, and the metallurgy of iron and steel,
the petrochemical industry, the railway transportation,
the mining industry, the extinguisher apartment
and the atomic physics research institute.
The main technical parameter:
Range of measurement: （SF6）： 10-8 ～10-2 （volume
Time of response: no more than 3 seconds (10-4
Indication mode: digital numerical quantitative
indication and audio, optical signal
Length of the vacuum hose: 4 meters
Continuous working period: no more than 4 hours
SF6 gas HRPZH high-precision
analysis of the quality of the comprehensive test
Alternating current power: 220V±22V, 50Hz±2Hz
Environmental temperature: -5℃～+45℃
Relative humidity: no more than 85%
Electric power consumption: about 270W
Size (length, wide, height): 510×330×480mm
Gross weight: about 20kg
mobile SF6 gas recovery inflatable devices
SF6 gas discharge decomposition analysis Tester
Type Minim Water Admeasuring Apparatus
| Brief introduction:
The HRDWS-IIC Digital High Precision SF6 Minim Water
Admeasuring Apparatus is the new type instrument with
a high degree of automatic which belongs to the HRDWS-Ⅱseries.
It is made by adopting modern advanced digital measuring
technique and optimal gas circuit with producing experience
for many years. It has much improved the reliability
of instrument and the convenience of usage.
This instrument can be used continuously and discontinuously
for measuring the minim water. Compared with the other
kinds of water analysis methods, this instrument can
be a simply, direct and fast way for you to analyzing
featuring strong stability and good repeatability.
This instrument is applied for air, nitrogen, argon,
hydrogen, oxygen, sulfur hexafluoride and the gases
which are not reactive with the phosphorus pentoxide.
It is also can be used to express analyzing, automatic
monitoring and exact measuring the water content in
the gas at the ministry of water conservancy and electric
power, the manufacturing engineering of electronic
device, and the metallurgy of iron and steel, the
petrochemical industry, the railway transportation
and the mining industry.
The main technical parameter:
Accuracy of measurement: ±5%
200 Shelves：0～200×10-6 (Volume fraction)
2000 Shelves：0～2000×10-6 (Volume fraction)
Remarks: The range of 1000~2000 is not used for measuring.
Alternating current power: 220V±10%，50Hz
Environment temperature: -5℃～+45℃
Instrument inlet pressure: Rated inlet pressure: 0.02～0.12Mpa
Weight: about 6kg
Type Digital Partial Discharge Detecting Analytic System
The HRJFD system has carried
the ultrasonic measurement to the local discharge of
the hundreds of transformers and reactor in Gezhou Dam
500kV switch station, Wuhan Phoenix Mountain 500kV transformer
substation, Shengyang transformer factory, Hefei transformer
factory, Hengyang transformer factory, Guangzhou power
supply bureau, Hunan electricity generating board, Chongqing
transformers factory and Wuhan steel. This system has
the advantage of operation reliable and easy to operate.
It can meet the needs of measurement. As one of the
key items of the of eight-five project, this electrical
device has been widely used for the spot test and research
in the related unit in the north, east, central and
northwest parts of China.
The system has functions of hundred-percent process
controlling mode and menu prompt in Chinese character.
It can access and print arbitrarily. It can automatically
generate survey reports and display two-dimensional
and three-dimensional local discharge atlases. It is
made by adopting the skin window technique and has a
good capacity of resisting disturbance. It takes the
techniques of two channel measurement and digital difference
technique which is able to measure the local discharge
signal of two samples or the two testing point of one
sample. That is convenient for analyzing the origin
of the local discharge signal. This product is the national
key scientific and technological project and the extension
project of the ministry of electric power. It has been
tested in hundreds of transformers such as the Gezhou
Dam 500kV switch station, Wuhan phoenix mountain 500kV
transformer substation and Shenyang transformer factory.
It is reliable and easy to operate.
It is specially applied for measuring the local discharge
of the eclectic devices such as the transformer, the
electrical motor, the mutual inductor, the capacitor,
the cable, the GIS, the switches and the lighting arrester.
The performance is complied with the standard of IEC-270
and GB7354. It has the hundred-percent Chinese software
and the menu mode operation. The measurement and analysis
of the local discharge graph data can be arbitrarily
accessed and printed. It has two channels and can produce
test report automatically. It has many colorful display
modes those are ellipse, straight line, two-dimension
Detection sensitivity: 0.5pC
Measuring frequency bandwidth: 1-200 kHz
Gain dynamic range: above 120dB
Sampling precision: 8 bit ±1/2LSB
The whole equipment also includes the mainframe, display
and print. (It’s not including the voltage part)
Type On-Site Digital Partial Discharge Detecting Analytic
system is specially applied for the field and spot check work
in the electric equipment manufacturer, electricity generating
and supplying department, electrical power construction, electrical
installation and debugging construction enterprises. It is
very convenient for measuring and fixing the database which
is easy for further analysis and management.
Measuring channel: two channels
Detection sensitivity: 0.1PC
Measuring frequency range: 3dB bandwidth 10kHz~300 kHz
Cell-type filter setting stage:
Low end 10，20，40kHz
High end 100，200，300kHz
Gain dynamic range: 120dB
Synchronizing frequency: 50,100,150,200 or any Hz
Standard pulse generator: HRJFD-301
Full sized pulse voltage: 10V，5V，2V，1V，0.5V，0.2V (adjustable)
Calibration capacity: 50pF, 200pF (adjustable)
Working power supply: AC220V±10%，50Hz
Technique File of HRJFD Type On-Site Digital Partial Discharge
Detecting Analytic System
Digital partial discharge detection
Digital partial discharge detection
Type Local Discharge Ultrasonic Automatic Positioning
failure testing and positioning of operating the medium
and large sized transformers have always been the points
that electrical engineers focus for a long time. The
HRJFD-2A system, manufactured in the large-sized transformer
local discharge ultrasonic position method and equipment
research subject which is one of the national key scientific
and technological project has provided an effective
The HRJFD-2A system has carried the ultrasonic measurement
to the local discharge of the hundreds of transformers
and reactor in Gezhou Dam 500kV switch station, Wuhan
Phoenix Mountain 500kV transformer substation, Shengyang
transformer factory, Hefei transformer factory, Hengyang
transformer factory, Guangzhou power supply bureau,
Hunan electricity generating board, Chongqing transformers
factory and Wuhan steel. This system has the advantage
of operation reliable and easy to operate. It can meet
the needs of measurement. As one of the key items of
the of eight-five project, this electrical device has
been widely used for the spot test and research in the
related unit in the north, east, central and northwest
parts of China.
The HRJFD-2A ultrasonic positioning system which is
including the high performance computer, high-sensitivity
local discharge sound probe, programmed amplified filter,
high-speed A/D transducer, transient waveform recording,
signal analysis and fault location software is applied
for acquiring, measuring, analyzing, positioning and
spot observing the local discharge ultrasonic signal
in the large-sized transformer, oil-immersed high voltage
electrical apparatus and the GIS electrical operation
The HRJFD-2A ultrasonic positioning system can position
the fault and the error is less than 250mm. The whole
measuring system can find out the local discharge ultrasonic
signal which is less than 1000pC.
Functions and characteristics:
(1) Making the detecting operation of local discharge
ultrasonic more convenient and the analyzing more simple
under the platform of the windows.
(2) Making the signal acquired more reliably for the
ultrasonic sensor has the performance of low noise,
high-sensitivity and anti-jamming.
(3) Making the spot testing more flexible with the local
discharge ultrasonic signal electrical-acoustical position
and acoustical-acoustical position functions
(4) Making the result of the position more precisely
by choosing freely the spherical position calculation
and the hyperboloid position calculation of the ultrasonic
(5) Showing the position coordinates by ultrasonic probe
and the locating point by solid geometric drawing.
(6) Convenient for building the measuring and positioning
database for further analyzing and managing.
(7) Be the local discharge on-line detecting instrument
which is useful for detecting the local generating and
The sensitivity of the ultrasonic probe: -150dB
A/D conversion accuracy: 8bit±1/2LSB
Sample length: 32k/channel
Minimum detectable discharge:＜50pC (laboratory)＜300(1000)pC
Minimum positional error:＜50mm(laboratory)＜ 250mm
High Voltage Switch Mechanical Features Tester
| This tester
is used to measure time, speed and process of the overstuffed,
oil-minimum breaker, vacuum and SF6 high voltage switch
and high-voltage circuit breaker. It is also can be
used to measure the closing and trip time, the bounce
time, the reclosing time, maximum speed and the average
speed of the high-voltage circuit breaker. It has the
function of the liquid crystal display and print as
well as the menu prompt operation.
The main characteristics: The measuring vacuum switch
doesn’t need to put into the process. It can be tested
directly and sensor can be easily installed.
Main technical target:
Maximum speed measurement: 7m/s
Inaccuracy of measurement: 0.01m/s
Maximum haul cycle: 600mm
Inaccuracy of measurement: 1mm or 0.5mm
Maximum time: 999.0ms
Inaccuracy of measurement: 0.1ms
Type Vacuity of the Vacuum Switch Measuring Instrument
| This instrument
is made by adopting the latest excitability flexible
circuit conductor to measuring the vacuity of the vacuum
switch automatically without the unloading. The operation
is simply and reliable. It can be used in many kinds
of vacuum tube.
Performance and characteristics:
(1) It can quantitatively measure the vacuity of the
vacuum tube as much as 35 curved shapes.
(2) It has the function of leaking detecting.
(3) The useful time can be speculated from the historical
(4) The internal of the instrument has been stored
the arc extinguish chamber. You can read directly
(5) The band and surface type printer can put out
(6) This series has been divided into two kinds of
instruments which are loading and unloading.
(7) The unique function: The instrument can judge
the three situations of the vacuity which are eligible,
declinable and fully leakiness.
Range of measuring: 0.000001～0.1pa
Output voltage: AC 220V 50Hz
Input Power: High voltage output: Pulsed voltage:
30kV, 15 kHz
Inaccuracy of measurement: ＜10%
Measurement resolution ：10-5pa
Type Portable Cable Fault Locator
is used for locating various faults of the cables for
the city cable, high frequency communication cable,
buried cable and medal overhead cable line. The faults
include open circuit, short circuit and poor contact.
It also can be used to telemetry the position of the
fault, including the leak grounding, wire breaking and
poor contacting. The instrument adopts many testing
methods and the most advanced electron technology fruits
as well as the computer technology and the microelectronic
technique. It has a high degree of intelligent, a full
function, a large range of use, an accurate testing,
a convenient operation and alternating-current power
or direct current power source. It is especially suitable
for testing different types and grades voltage cables.
Technique File of the HRLGT (DMDL) Intelligent Cable
Technique File of the HRLGT (JKDL) Intelligent Cable
(1).The farthest testing distance: 32 km
(2).The detecting blind area: 1m
(3).Resolution reading: 1 m
Type Transmission Line Fault Distance Tester
tester is used to measure the distance between the fault
point and the measuring point when the permanent earth
or turnoff happened in the overhead transmission line.
It is applied for the 35kv and the voltage grade above.
You can tell the fault distance exactly only by examining
and fixing the fault line in the transformer substation
when the fault happens. It is very convenient for the
maintainer to look up the fault quickly and shorten
the emergency repair.
(1).Range of measuring: 1-100km
(2).Inaccuracy of measurement: ≤1%
(3).Output mode: 8 bit LCD display
(4).Electric power source: internal-mounted 12V3AH storage
(5).Working hours: 6 hours
(6).Working temperature: 0～40℃
(7).Humidity level: RHD30～95%