Low PD Frequency Variable Resonant Test Device

Yangzhou Xinyuan Electric Co,.Ltd

No PD Frequency Variable Resonant Test Device
Technical Specification
1、Overall Performance
This test system meets the 230kV and below 230KV GIS、breaker etc AC voltage withstand

test requirement.

● FunctionDiagram

● Parameter Selection

First choose the single reactor and its inductance：145H，then two in series 290H

High voltage filter also capacitive divider ： 1300Pf ， Stray

capacitance about 50Pf

No-load resonant frequency：

1 1
f    254.4 Hz
2 *  * LC 2 *  * 290 *1350 *10 12

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Http：//www.yzxyec.com E-mail：yzxyec@yzxyec.com


● Load Parameter (see picture below)：

460kV30Hz5A负载范围 230kV30Hz5A负载范围 460kV300Hz5A负载范围 230kV 10A 30Hz电流 230kV 5A 30Hz电流
460kV 5A 300Hz电流
230kV30Hz10A负载范围 230kV300Hz5A负载范围 230kV300Hz10A负载范围 460kV 5A 30Hz电流
230kV 5A 300Hz电流

1000

100

10

1

0
0 1 10 100 1000 10000

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2、General Using Condition

Altitude：≤1000m

Ambient Temperature：－10℃～＋40℃

The Max Daily Temperature Difference：≤25℃

Relative Humidity：≤90％（Non-condensing of device cover ）

Wind power：≤4 level

Waveform aberration Probability (Power Voltage’s waveform is sine-wave)<3%

Equipped with a reliable grounding point, earth resistance＜0.5Ω

3、Standards
GB10229 《Reactor》

JB/T9641 《Test Transformer》

GB1094 《Electric Transformer》

GB/T.311 《 Insulation and cooperation of the high voltage

transmission device》

GB/T 16927 《High Voltage Test Technique》

GB7328 《Transformer and Reactor’s Sound Level Measurement》

GB4208 《Shell protection level》

GB2900 《Electro technical terminology》

GB5273 《 Connectors of the transformer, high voltage

apparatus and bushing》

GB191 《Packing, storage logo
》

GB10237 《Electric transformer insulation level and the air

gap for the insulation level test》

According to IEC 60520

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4、Main Technical Parameter
Overall Functional Parameter
Rated Input Voltage：480V ±15% (three phase)

Rated Frequency：60Hz

Rated output Voltage：460kV

Rated Output Current：5A

Rated output capacitance：2300kVAR（resonant state）

Input power：≤100kW

Output phase：single

Test voltage：0～460kV

Frequency adjustable range：30Hz-300Hz

Frequency regulating accuracy：≤0.1Hz，frequency instability≤0.05％

Test voltage waveform：sine：aberration rate≤0.2％

Test voltage accuracy：1 level

Test voltage stability：1.5％

Insulation level：1.1 times rated voltage 1 minute

Noise Level：≤60dB

Running Time： rated voltage, rated current for run 1hour

Q Factor：Q75ºC>60（under 50Hz）

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4.2 Parameter of the Components
4.2.1 High Voltage Series Reactor
(single unit parameter)：
Type：XZF-1150/230

Rated Voltage：230kV

Rated Current：5A

Rated Capacitance：1150kVAr
Inductance ： 145H5 ％ inductance
Nonlinearity≤1％
Insulation Level ： 253kV/1min ， insulation

base grounding 50kV/5min

Working Frequency Range：30～300Hz

Q Factor：Q>60（under 50Hz）

PD：at rated voltage PD≤10Pc

Allowed Temperature Rising ：at rated capacitance，coil temperature rise≤65℃，

oil temperature rise≤55℃

Running Time： rated voltage, rated current for run 1hour

High voltage reactor can run by one unit or by both series and parallel

Reactor structure requirement
Twill shell with epoxy glass insulation winding, thickness 8mm (Note: thick

wall thickness will affect the thermal reactor, and thin wall thickness would

affect the mechanical strength of the reactor, we have been calculated, select

a wall thickness of 8mm wound epoxy glass insulation twill shell);

Epoxy insulating shell in order to ensure adequate mechanical strength and

dielectric strength, the choice of the epoxy insulating shell, our company

controls the following technical indicators:
1, E-epoxy insulating shell, no glass twill wrapped wax
2, E, non-wax glass of the shop floor: 0.4mm
3, E, wax-free glass for lamination angles: 65 ° ~ 70 °
4, epoxy resin adhesive gel content: 22% ~ 25%
5, tension, and prestressed: 0.2kg (single unit for 1200TES)
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6, density: 1.9 ~ 2.0g/cm2;
7, the compressive strength: more than 200Mpa;
8, bending strength: more than 400 Mpa;
9, shear strength: more than 60 Mpa;
10, strict control of the pore force, due to poor porosity of 1% for every force,
shear strength will be reduced by 6% to 8%;
11, dielectric loss factor (50Hz): less than 0.02;
Since my company insulated glass fiber with epoxy resin shell flange twill around
the system, change the past, aluminum tube flange and epoxy casting flux leakage
caused (although aluminum flanges have openings, but after a long period of research
and testing we have proved and aluminum flange are still relatively large magnetic
flux leakage and eddy current, will heat the surface of aluminum flange) phenomenon,
in order to solve the problem of insulating flange lead, my company by improving,
the external and internal trailer coupling line hole to separate them phase
independently of each other.
Epoxy resin glass fiber insulation tube shell around the system, with adequate
electrical, mechanical strength, but also take full account of heat capacity and
thermal expansion and contraction of oil (the reactor's internal use of oil and rubber
as the respiratory membrane, the design of adequate respiratory Yu degrees, so that
the reactor's internal and air separation) of the margin. Cover the upper and lower
case with no magnetic and anti-magnetic plate (stainless steel), the reactor is
equipped with special facilities for lifting and reliable. Shell insulation should
be sprayed orange paint.
Grading ring to consider when stacked reactor voltage, the use of aluminum materials,
and to take measures (the opening cut off circuit) to prevent short-circuit
circulation in the strong magnetic field when the grading ring fever. Carefully
calculated to ensure that the grading rings can not afford at the rated voltage halo,
series reactor installed with the top grading ring bicyclical structure, grading
ring for easy removal, with a special aluminum boxes, the internal use of 10mm, sponge
lining, bedding in the aluminum box inside, both for transport, but also to prevent
the bump deformation during transportation; aluminum box not only strong,
wear-resistant and not easily deformed; reactor aluminum box with top open cover
structure, cover the internal clear height of the upper part of the reactor with
high 20cm, cover with the box fitted with buckle structure, a fixed lug boxes.
Grading ring (cover) easy installation, equipped with special boxes for shipment,
and to prevent the transport of bump deformation.
Insulating Block reactor stability sufficient support to withstand series-parallel
reactor and the total weight grading ring and take measures to prevent eddy current
heating under the strong magnetic field, steel base with non-magnetic stainless steel,
easy to dismantle install, easy to transport. According to series, parallel requires
enough base to two, while at least one group has sufficient stability (up to two
combinations) base, can adjust the level, easy accessibility, a lifting device.
Reactor has to withstand the weight of special lifting devices and transport of fixed
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facilities. Consider the internal structure of the reactor after the normal railway,
road transport position after each change, not loose fasteners. Reactor should be
equipped with rain cover
4.2.2 CX-100kW Frequency variable power
supply（pulse width regulating mode）mail
technical parameter：
Working power supply voltage： phase three 480V
AC

±10%，60Hz

Rated output power：100kW

Output voltage ： single ， 0 ～ 600V continuous

regulating

System voltage stability：≤1.0％

Voltage regulating：the min regulating 小 0.01%
Adjustable Frequency Range: 30Hz ~ 300Hz
Frequency adjustment fineness: 0.1Hz, frequency
instability ≤ 0.05%
Frequency Adjustment sensitivity: ≤ 0.02Hz
Input, output, the main circuit and auxiliary
circuit 1min power frequency withstand voltage
level of 2kV (RMS)
System accuracy: 1.0
Allowed to run time and temperature: the maximum
output voltage and maximum current of the test
product was allowed to run 180min, exit air temperature ≤ 30K
Noise：less 60 dB

Weight ：48kg
Dimensions: length 570 × width 500 × high 460 (mm) (can be configured to move
the test tables, or using the console)
Product features：
Major role in CX-type variable frequency power supply is offer power for the entire
device. It takes SPWM work mode, working stability, high efficiency. Output voltage
regulation and frequency of the inverter are advanced and reliable. IGBT insulated
gate field effect transistor switch. Fully synchronized SPWM pulse and sine wave,
waveform, frequency stability and temperature drift small. Response speed of
hardware protection circuit will not damage due to external shocks, and high
reliability. Master the major components of variable frequency power supply products

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are imported.
Frequency power input and output main circuit and auxiliary circuit 1min power
frequency withstand voltage level of 2kV (RMS).
Frequency power supply with variable frequency high voltage test source dedicated
computer control, with the frequency, voltage, control, protection and many other
features.
1, the power supply 320 × 240 dot-matrix displays use LCD display (with backlight),
high resolution, legible. The strength of the indoor and outdoor light can glance.
2, test data can be screen memory, any memory storage location 30, and with any access.
Selection of imported chassis and stainless steel panels buttons and panels together,
beautiful appearance.
3, three types of operation
⑴ automatic tuning manual step-up
⑵ manual tuning manual step-up
⑶ automatic tuning, automatic step-up
Auto tuning - using the latest fast-track method to find the resonant frequency is
only 30 ~ 40 seconds or so, tuning is completed, lock the resonant frequency. No
resonance point, the prompt area displays, "tuner failed." Manual tuning 30Hz ~ 300Hz
no resonance, suggesting that area shows "no resonance", when the automatic cut off
the boost circuit. Prohibition continues to boost, to ensure that test materials,
equipment and personal safety.
Dynamic tracking control of the speed boost - when high pressure close to the test
voltage is set to automatically adjust the step-up rate, can effectively prevent
voltage overshoot caused by damage to the test items.
Set the test time machine timer - when the test voltage to set the value automatically
start time, time to set the value of the first 10 seconds an audible alert signal,
the time to automatically step-down to "zero", and cut off boost loop, while the
Show prompt "end of the trial", automatically record test results.
Screen display menu, built-in: "6kV, 10kV, 35kV Test voltage power cable voltage"
selection and "5min, 10min, 15min test of time" choice, if you choose does not meet
user requirements in the "custom" area to enter their own required test voltage and
test time (1 ~ 99min); and a system Q value of the display and choose to display
the number of divider sections.
Automatically start the timer function, automatic step-down switch and close the
high voltage circuit.

Protection function:
Variable frequency power supply with zero, over current, over voltage, overheating
and other high-voltage flashover protection, protection action displayed on the
screen are in Chinese; device at rated voltage and current work under voltage when
flashover or breakdown will not damage the equipment package, the devices can work;
If the device connection error, high voltage auto-locking, can not step-up.
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⑴ start automatically zero protection - the system automatically from the zero
output.
⑵ overvoltage protection - Built-in automatic voltage protection, you can manually
set the test voltage, test voltage when the voltage reaches 1.1 times the automatic
removal of the entire package.
⑶ over-current protection - Built-in automatic current protection, current> rating
of 1.1 times the automatic removal of the entire package.
⑷ high flashover protection - with a discharge or flashover protection, when step-up
in any test or high voltage discharge flashes, automatic removal of the entire device,
and will not have test equipment and personal harm electronic components inside the
inverter power supply will not damage the breakdown.
⑸ comprehensive protection - When the test line when the connection is wrong or
broken protection. (Such as variable frequency power supply master, excitation
transformer, reactors, voltage divider, such as measurement lines.)
⑹ high voltage limit protection - in the device output voltage has reached the
set voltage value, the step-up system automatically locks to avoid the misuse of
over-voltage caused by the impact of the test product.
⑺ overheating protection - power devices to protect temperature ≥ 80 ℃
⑻ emergency braking protection - click on the emergency stop button on the display
can be an emergency cut output.
⑼ power protection - test equipment in any case, suddenly disconnect the AC power
supply, re-step-up when the unit can work properly.

Others
Variable frequency power supply is equipped with a dedicated plug lead and connected
with other devices, including a dedicated power supply lead, and excitation voltage
transformer leads, and leads special measuring the voltage divider, special
grounding wire and so on.
Variable frequency power supply for portable box-type structure with aluminum outer
box, the internal structure and its components after the normal railway, road
transport remain unchanged after the mutual position, no damage, no loose fasteners.
Variable frequency power supply has a groundling termination. FM power supply and
ground operators to meet safety requirements.
In order to ensure that the output need to increase screening bureau heavy volume
control room (car type), the use of iron production, to ensure that the output is
less than 10pc heavy volume Bureau

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4.2.3 Exciter Transformer
Type：ZB－100/4*5

Low voltage winding： 2 windings in total

Low voltage winding：

Rated capacitance：100kVA

Rated voltage：600V

Rated current：2*83.3A

High voltage winding：
4 windings 8 taps can be both series and

parallel

Rated capacitance：4*25kVA

Rated voltage：4×5kV；

Rated current：4×5A，

Core capacitance：100kVA

Working frequency：30～300Hz

Impedance voltage：5％

Voltage ratio error：+/-0.3%

Cooling type：ONAN

Temperature rising：at rated capacitance work continuously one hour, Winding

temperature rise is less than 60K, the top oil temperature rise of less than 50K
Noise level：≤60dB

Insulation level：full insulation structure，output through bushing side

PD：At rated voltage PD≤10Pc

Structure and other requirements：
Outlet side of the transformer is sealed
structure
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Has a fully sealed transformer test oil temperature with a thermometer measuring
Block (BWS-70) oil level indicator (UHZ-01), and explosion-proof valve
Excitation transformer, full insulation, copper wire, cold-rolled silicon steel
sheet, under the conditions of flux density at 30Hz designed for dual coil transformer,
respectively, low-voltage coil, transformer winding, between the low and high
pressure, low pressure and the core placed between the electrostatic screen, high
and low voltage winding magnetic contact only, no electricity connection.
Casing made of composite materials, impact resistance, especially for the scene;
casing of the mechanical strength, toughness, far beyond the ordinary casing.
Between low-voltage windings in the transformer station protection arresters
installed
Transformer has to withstand the total weight of the lifting device transformer to
provide high voltage winding in combination with each other dedicated connection
bus, the fuel tank with ground bolts. After considering the internal structure of
the transformer in the normal railway, road transport position after each change,
not loose fasteners. Group of transformers, components such as pipe, valves and
storage cabinet, structure and layout of the location, do not hinder the loading,
transport and transport in the fastening position.
Process Description
Oriented silicon steel sheet core made of high quality brand DQ133-30, Bm value is
low, core lamination strict requirements of the technical requirements, overlapping
installed adhesive tape wound around the glass, and hot dry curing, to ensure the
core run-time reduction noise.
Coil winding are used when painting, not dipping process to ensure that the partial
discharge is small enough and low temperature rise.
About the elastic core yoke pressed, to ensure that the coil in the transport and
operation of adequate mechanical strength, more accurate positioning and low noise.
Multi-conductor low-voltage winding wound in parallel in order to avoid a greater
horizontal flux leakage loss of the wire attached to fully reduce the lateral area
of magnetic flux leakage through the wire.

4.2.4 High Voltage Filter (also Capacitive Voltage Divider)
Type：LBH-460

Rated Voltage：460kV

Rated frequency：30～300Hz

Nominal capacitance：0.3nF+1.0nF

Measurement Accuracy：≤1％

Dielectric Loss：≤0.4%

Attenuation characteristic：10kHz～300kHz≥20dB
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Insulation level: 1.1 times rated voltage withstand 1 minute

Chassis: own sufficient stability; can regulate the level; convenient in demolition

and installation; and fitted with casters to facilitate movement.

Capacitive divider can be used as coupling capacitors while PD measurements.

Running time: as reactor

Principle

General test requires small partial discharge level measurement. This requires of installing HV
audio-interference filter between high voltage reactor and tested device to insure small partial
discharge level measurement.
High voltage filter is composed of L-C-L-C, while L represents isolating resistor, with capacitor
C, they form the filter type π . At the bottom of the first capacitor there is a measuring capacitor,
which acts as a divider and output voltage detector of the resonant system. The second capacitor
is a coupling capacitor, and connected with the partial discharge detector, it can also detect
the partial discharge signal.
Besides, two high voltage capacitors are still the fundamental load of the whole testing circuit,
making the small load testing and the sample testing easier.
Components
High voltage capacitor
Design principle
Two capacitors, one is 2.5nF/230kV, and the other is 0.6nF/230kV, they composed

a high voltage 460KV capacitor. Capacitors connected to each other, the base frame,

shielding end and capacitor flange are made for this variable special design.

Type：TAWF-300/460

Quantity：1 (2 个 230 kV)

Rated voltage：460 kV

Rated capacitance：0.3 nF

Rated Frequency：30～300Hz

High voltage capacitor works as basic load, and the total capacitance of two

capacitors should make the resonant testing system work without extra loads, that

is to say the basic load must be equal or greater than the minimum of the high voltage

reactor’s load range.

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Type：ORF-1000/460

Quantity：1 (2/ 230 kV)

Rated voltage：460 kV

Rated capacitance：1.0 nF

Rated frequency：30～300Hz

High voltage capacitor works as basic load, and the total capacitance of two

capacitors should make the resonant testing system work without extra loads, that

is to say the basic load must be equal or greater than the minimum of the high voltage

reactor’s load range.

Isolate Impedance
Type：LS 460-60/6

Quantity：2

Rated current：6A

Working condition ：

continuous

Rated inductance：about 60 mH

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5、Factory Test Projects
Frequency variable power supply（with simulate load，test at the full
capacity after continuous working one hour）
(1) output voltage and frequency adjustment range
(2) full load input / output voltage, current, power
(3) heat sink inlet and outlet air temperature and heat conditions in major
current contacts
(4) over-current protection test with a full load to inverter power supply, power
inverter protection device should be reliable and fast action. Repeat the above
steps should be 3 times the normal action.
Exciter transformer
（1）Winding DC resister

（2）Insulation resister：≥1000M Ω /2500V

（3）Voltage ratio error：≤0.5%

（4）No-load current：≤5%

（5）Inductive voltage withstand：at 1.2 times rated voltage /1min，without

flashover and breakdown

（6）Temperature rise：running 1 hour at rated capacity，average coil temperature

rise≤65K

Resonant reactor
（1）DC resister：the deviation of the design value should less than 4%

（2）Inductance：the deviation of each should less than 2%

（3）AC voltage：1.2time rated voltage/resonance/1min，without flashover and

breakdown

（4）Temperature rise：running 1 hour at rated capacity，average coil temperature

rise≤65K

（5）Noise：≤60dB/25Hz

Capacitive divider
(1) Testing the capacity, the design value should less than ± 1% deviation

(2) AC voltage test, 1.2 times rated voltage, no breakdown flashover

System
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（1）Test voltage accuracy, stability

(2) Discharge protection test

(3) the emergency shutdown test

(4) auto-tuning of the automatic step-up test

(5) Complete series resonant AC voltage test equipment must be rated high voltage

flashover test

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6、On-site test and its project
In the case of manual testing with a load / auto-tuning (automatic search for the
resonance point) / automatic test (automatically find the resonance point, auto-step,
automatic step-down each time) three large-screen liquid crystal display operating
mode voltage, current, voltage step-up time and self-protection and other status
information is normal.
Verify inverter power supply with brownout protection, zero-voltage start-up and
exit correctively. If encountered the cable flashover in the test, the device
restarts, all the function should be intact and can be tested.

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Series Resonant Test Device

Quotation
CIF New York Port
Price unit： US Dollar
Single Total
Number Name Quantity Note
Price price
145H 230kV 5A High
1 2 29350 58700
voltage reactor
CX － 100 Frequency
2 1 34705 34705
variable power supply

High Voltage Filter (also
3 1 21470 21470
Capacitive Voltage Divider)

ZB － 100 Single phase
4 1 8235 8235
exciter transformer
5 Accessories 1 900 900

6 Total 124010
Inspection and packaging
7 1 3% 37203

8 Ocean freight and insurance 1 3% 37203
Final price 198416

Q10. Your price should be in USD. The incoterm should be CIF New York Port.

报价换算成美元，报美国纽约港到岸价

Q11. Your price should include one week of training in the US.

报价包括一周的培训费

Q12. Your warranty should be 3 years from delivery. Any problems with the

equipment within the warranty period will be repaired by you at your cost.

3 年质保，3 年内任何问题将面为维修

Q13. You should supply all the shipping containers because this test equipment

will be used in different substations.

提供所有包装箱（设备将用于不同地方）

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Q14. The container you supply for the reactor should be clean and oil leak proof.

The reason I ask for this is because the power company requires that we provide oil

containers big enough to hold all the oils in the reactors if they leak oil in the

field. 电抗器的包装箱要干净且防止漏油（包装箱要足够大，能装电抗器里面的油）

Q15. You should have your Terms and Conditions included in this document. It

should include payment schedule and others.

我们的合同条款要写在次文件里面，包括付款的时间等。

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Low PD Frequency Variable Resonant Test Device

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