Low PD Frequency Variable Resonant Test Device

Yangzhou Xinyuan Electric Co,.Ltd

Tel：0514－86608766（office） 86608966 Fax：0514－86601608

Http：//www.yzxyec.com E-mail：[email protected]

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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：

HzLC

f 4.25410*1350*290**2

1

**2

1

12


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● Load Parameter (see picture below)：

460kV30Hz5A负载范围



460kV 5A 30Hz电流

230kV 10A 30Hz电流 460kV300Hz5A负载范围

230kV300Hz10A负载范围230kV300Hz5A负载范围

230kV 5A 30Hz电流

460kV 5A 300Hz电流

230kV 5A 300Hz电流

0

1

10

100

1000

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 ： 145H5 ％ 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：AC phase three 480V

±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

Number Name Quantity Single

Price

Total

price Note

1 145H 230kV 5A High

voltage reactor 2 29350 58700

2 CX － 100 Frequency

variable power supply 1 34705 34705

3

High Voltage Filter (also

Capacitive Voltage Divider)

1 21470 21470

4 ZB － 100 Single phase

exciter transformer 1 8235 8235

5 Accessories 1 900 900

6 Total 124010

7 Inspection and packaging

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。

Documents

Low PD Frequency Variable Resonant Test Device