| （Ⅴ）Instruments
and Meters Testing Equipment |
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1、HRBT
Type Electrical Specification Comprehensive Test-bed for
Transformer |
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This
Comprehensive Test-bed is specialized in taking on the
project system engineering construction of the power transformer
standard testing house. It is responsible for the upgrade
and reconstruction of the technical equipment as a general
contractor from planning programming, producing, installation
and debugging to the service of training and turn-key.
This Comprehensive Test-bed is specialized in taking on
the design and construction of the other kinds of electric
installations.
It is used for the testing the distribution transformer
before leaving factory as well as the overhauling and
testing. It can be applied in measuring all data of the
unloaded and loaded experiment. It is also can be used
to measure the parameters of the transformer bank, voltage
ratio and DC resistance. It has the functions of the synchronous
sampling, digital presentation and latching. The power
transformer tested belongs to the characteristic test-bed
series of the 630-1600kVA capacity. It can meet the needs
of different types and formats of the tested equipments.
Also, it can design and manufacture the high capacity
power transformer of test-bed with overall characteristics
according to the needs of users. The package unit has
a completed function and it is safe and easy to operate.
The test-bed can be divided to two types which are the
types of microcomputer and conventional.
★
Instruction of HRBT Type Electrical Specification Comprehensive
Test-bed for Transformer
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2、HRBRTC
Type Deformation of Power Transformer Winding Characteristic
Tester |
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This
type of instrument is adopted by introduction of foreign
technology and the latest nondestructive examination equipment
of the power transformer internal fault. It is used for
confirming the degree of the deformation of transformer
internal winding which is the important method of the
preventative nondestructive examination. It applies to
the power transformer of 6.3kV-500kV. The whole operating
function will be pointed out in Chinese or simple English
on the screen of the microcomputer. It is made up of a
portable computer, a color printer and the main measurement
system. The instrument can be divided into two types of
testing methods by frequency response and short-circuit
impedance. Range of frequency point:
1-5 kHz 1-100 kHZ 1-500kH 500-1MHz (The special layout)
Precision: Wandering of frequency point Δfni≤2‰fni (The
average value in the frequency domain)
Amplitude resolution: 0.001dB
Irregularity degree of the passband≤0.05dB ((The average
value in the frequency domain)
Weight: 20kg
Experience accumulation: 200 main transformers
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3、HRBC
Type On-Load Tapping Changing Switch of Transformer Tester |
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This
type of tester is used to measure and analyze the electric
property of the on-load tap-changer of power transformer.
It can measure the parameters automatically. The parameters
include the transient time, the transient waveform, the
transition resistor, the characteristic of three phrases
synchronous, the preferential of the angle of departure
and the time of switching occurs. It also has the advantages
of the large screen liquid crystal display and the power-off
protection. It is equipped with RS232 microcomputer interface
which is useful for the microcomputer analyzing and managing
automatically of the testing results.
Range of the transient resistor measuring: 0-25Ω
Precision of measurement: 0-5Ω ±0.1, 5-15Ω ±0.4Ω
Frequency of sampling: 10-50 kHZ
Transient time of waveform measurement: 0.2-64000ms
Precision of measuring synchronization: 0.2ms
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5、HRCZB
Type Power Transformer Switching Wave Test Generator |
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The device
is 500kV with a capacity of 360MVA. All the varied power
transformers for insulating and electrical strength checkout
equipments have the advanced national level and have won
the second prize of the Scientific and Technological Progress
in Hubei province. This product is equipped with the package
unit including the storage oscilloscope, the condenser
divider and the injury resistance. It has the advantages
of operational flexibility, low-need electric capacity,
minute extension and light in weight. It has the on-the-job
dependability and performance.
Input: AC200V（50Hz）
Output voltage: 0-100kV Peak value (Various kinds of
specification)
Main capacitor ：1.2-2.5μF
Efficiency: 50%-80%
Waveform: ≥100×200（90）×1000（0）μS
Flaw detection sensitivity: It can detect the flaw of
the metal short circuit and the nonmetal insulation
among the high and low tension coil.
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6、HRBZ
Type Automatic Transformation Ratio Test Equipment |
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This
type of equipment can be used to test the transformation
ratio, the polarity, the bracket and the inaccuracy of
the single-phase or three phase transformers.
The key technical indexes:
The measuring range of the transformation ratio: 1-10000
Bracket: 1-12 point
Accuracy of measurement: ±0.2%
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7、Series
of HRSFQ Trebling Frequency Electric Power Source Generator |
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This
type of generator is used for alternator induced over
voltage withstand test of the pressure transformer, electric
motor and the transformer in order to check up on the
principal and subordinate insulating strength. It is also
can be used for the 150Hz electrical source of short-time
operations.
Input voltage: AC380V50Hz
Output voltage: 300V-500V (Be adjustable according to
your needs 0-5kV)
Voltage＞300V (Needs external lifting pressure equipment)
Wave distortion: ＜5%
Output capacity: 3kVA-150kVA
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8、Series
of HRSGB Intelligent Digital High Pressure Gauge (FRC
Digital Resistance-Capacitance Divider) |
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Standard
Impulse, Line-Frequency, Direct-Current (Self-Correcting)
Voltage Divider
The digital high voltage meter
is used for measuring the line-frequency high alternating
and direct-currency voltage in the electrical power system
and the manufacturing department of the electric installation
and the electrical aid. The measurement parts and the
displaying parts of the high pressure gauge are divided.
It is safe and reliable by adopting the portable type.
The measuring results have a high linearity.
Voltage classes: 50kV、100kV、200kV、300kV、400kV、500kV
Degree of accuracy: ±1.5%, ±1.0%, ±0.5% (The three types
are the upgrades of the high voltage electrostatic voltmeter.)
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