AC Voltage PD free Resonant Test System

AC Voltage PD free Resonant Test System

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AC Voltage PD free Resonant Test System Detail:

Introduction
This test system is mainly used for AC test and PD detection for 10-500KV XLPE cables and other apparatus.
A typical series resonant test system designed for HV/PD test e.g. for Power Cable testing which is shown as below.

Diagram of the AC/PD test system for cables

Flow Chart

1. HV reactor

2. Exciter

3. DSIT

4. Regulator

5. LVF

6. HV Divider

7. Intelligent Control

8. HVF

9. Digital PDD/PDSL

10. Test Termination

11. Tested Cable

12. Printer

13.Module for remote access and diagnostic

Technical Parameters

Rated voltage
of XLPE cable

6/10,8.7/10KV,XLPE

21/35,26/
35KV
XLPE (2.5Uo)

21/35,26/
35KV XLPE
(3.5Uo)

63.5/110KV,
XLPE

76.2/132KV,
XLPE

127/220KV,

XLPE

Rated output
voltage &
capacity

35kv,350 KVA

75kv,750 KVA

120kv,
1200 KVA

200kv,
2000 KVA

250kv,

2500 KVA

350kv,

5000 KVA

Input voltage &
capacity

50/60Hz,
380V,20KVA

50/60Hz,
380V,40KVA

50Hz/60Hz,
380V,60KVA

50Hz/60Hz,
380V,100KVA

50/60Hz,380V,
175KVA

50Hz/60Hz,380V,
250KVA

PD noise level pC

Under 100% rated output voltage, <2pC

Measuring precision
of voltage

±1%

Locating accuracy
of PD faults

Up to 1% of the cable length and can be reached ≤ ±1m

Environmental
temperature

10 ℃~40℃

Relative humidity/
altitude/ indoor or
outdoor

≤95%/ ≤1000m altitude/indoor use

Grounding for the
test system

One or two copper rod, the depth grounding resistance shall be less than 1 Ω

The insulation
isolated resistance
between the test
area and
surrounding

>1000MΩ measuring when water immersion

Design quality
factor Q

20

Power supply
for the test
system

10kv/0.4kv
20kvA Single
transformer

10kv/0.4kv
40kvA Single
transformer

10kv/0.4kv
60kvA Single
transformer

10kv/0.4kv
100kvA Single
transformer

10kv,175kvA
Single transformer
Supply from
city grid

10kv,250kvA
Single transformer
Supply from city grid

HV reactor

35kv/350kvA
Taps:35kv,20kv
Turning range:
35kv0.001-0.9μv
20kv0.021-2.7μv

75kv/750kvA
Taps:75kv,40kv
Turning range:
120kv0.021-0.42μv
40kv0.039-1.5μv

120kv/1200kvA
Taps:120kv,70kv
Turning range:
120kv0.012-0.27μv
70kv0.022-1.0μv

200kv/2000kvA
Taps:200,100,
40kv
Turning range:
200kv0.012-0.20μv
100kv0.014-0.67μv
40kv0.19-3.9μv

250kv/2500kvA
Taps:250,150,100k
Turning range:
250kv0.008-0.318μv
150kv0.024-0.49μv
100kv0.055-1.1μv

350kv/5000kvA
Taps:350,250,150k
Turning range:
350kv0.022-0.45μv
250kv0.012-0.25μv
150kv0.035-0.7μv

Excit transformer

20kvA 1.75/1.0kv

35kvA 3.5/2.0kv

60kvA 6/3.5kv

100kvA 10/5/2kv

175kv 12.5/7.5/5kv

250kvA 35/17.5/
8.75 kv

Double-shielded
isolated
transformer

380v/380v, 20kvA
~10dB

380v/380v,
35kvA~10dB

380V/380V,
60kvA~10dB

380V/380V,
100kvA(10
v/380v100kvA)
~10dB

Regulater

380v/0~380v 20kvA

380v/0~
380v 35kvA

380v/0~380v
60kvA

380v/0~380v
100kvA

380v/0~380v 175kvA

380v/0~380v
250kvA

HV Divider

35kv ±1%, 2pC

75kv ±1%,
2pC

120kv±1%,2pC

200kv±1%,
2pC

250kv±1%,2pC

350kv±1%,2pC

LV Filter

380v,50A ~20dB

380v,90A ~20dB

380v,160A
~20dB

380v,263A
~20dB

380v,460A ~20dB

380v,657A ~20dB

HV Filter

35kv,18A,
<2pC,>40dB

75KV18.75A
<2pC,>40dB

120KV,20A,
<2pC,>40dB

200kv,20A,
<2pC,>40dB

250KV,35A,
<2pC,>40dB

350kv,33A,<2pC,
>40dB

Calibration injected
capacitor

100pF,35kV,
2pC

100pF, 75kV,
2pC

100pF,120kV,
2pC

100pF,200kV,
2pC

100pF,250kV,
2pC

100pF,350kV, 2pC

Test terminal

Insulation
oil/Freon
TE2pC

Insulation
oil/Freon
TE2pC

Insulation
oil/Freon TE2pC

Water
termination
CTT 300

Water termination
CTT 300

Water termination
CTT 400

PD Detector/

Site
Locator

JFD or outside
of shielding
room

Shielded room(m)

6×4×4.5

8×5×4.5

9×6×4.5

15×10×6

20×12×8

30×25×15

Control room

Inside or outside of shielding room

Special devices
for locating
the PD position
closed the
cable end

Optional

Rail trolly for
tested cable
drum

Carring capacity: load 5-60T,rail(25-40kg/m)1-~30M,drum 360°rotatable,the rail uses motor driven connect type



Product detail pictures:

AC Voltage PD free Resonant Test System detail pictures

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5 Stars By Lisa from Bandung - 2016.09.16 13:44

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