2km Power Cable Variable Frequency Resonance Hipot Test Set
2km Power Cable Variable Frequency Resonance Hipot Test Set I.Test Object and Requirement (denpend on customer's cable)1. 6kv/185mm2 cable AC resonant test, the cable length is 1.574km, capacity is below 0.61uF, the testing frequency is 30~300Hz, testing voltage is 15kv, the testing time is 5min......
Send Inquiry
Product Description
2km Power Cable Variable Frequency Resonance Hipot Test Set
I.Test Object and Requirement (denpend on customer's cable)
1. 6kv/185mm2 cable AC resonant test, the cable length is 1.574km, capacity is below 0.61uF, the testing frequency is 30~300Hz, testing voltage is 15kv, the testing time is 5min
2. 10kv/185mm2 cable AC resonant test, the cable length is 1.574km, capacity is below 0.61uF, the testing frequency is 30~300Hz, testing voltage is 22kv, the testing time is 5min
II. Working Environment
III. Technical Data
IV. Applied standard
GB10229-88 Reactor
GB1094 Power transformers
GB50150-2006 Standard for hand-over test of electric equipment installation engineering
DL/T 596-1996 Preventive test regulation of electric equipment
GB1094.1-GB1094.6-96 Protection class of Shell
GB2900 Electro-technical terminology
GB/T16927.1~2-1997 High voltage Testing Technique
V. Capacity Determination of the equipment
Designing two reactors, the single reactor is 44kVA/22kV/2A/55H, and the total capacity of the unit is 88kVA.
Verification:
1, 1.5kkm/185mm2 cable 1.574km AC withstand voltage test, capacitance ≤0.61uF, test frequency 30-300Hz, test voltage 15kV, test time 5min.
If two reactors are connected in parallel, then L=55/2=27.5H, then:
Test frequency: f=1/2π√LC=1/(2×3.14×√27.5×0.61×10-6)=38.86Hz
Test current: I=2πfCU test = 2π×38.86×0.61×10-6×15×103=2.23A.
2, 10kV/185mm2 cable 1.574km AC withstand voltage test, capacitance ≤ 0.61uF, test frequency 30-300Hz, test voltage 22kV, test time 5min.
If two reactors are connected in parallel, then L=55/2=27.5H, then:
Test frequency: f=1/2π√LC=1/(2×3.14×√27.5×0.61×10-6)=38.86Hz
Test current: I=2πfCU test = 2π×38.86×0.61×10-6×22×103=3.28A
The total capacity of this set is 88kVa, 2 pcs reactors, each reactor is 22kVA/22kV/2A/55H. The reactors used in parallel meets the testing requirements.
VI. Parameters for Individual Parts
1. Exciting Transformer GDJL-6kVA/1.5kV/0.4kV (1 set)
2. Variable frequency power supply GDTF -6kW/220/380V (1 set)
It can realize below functions,
b. High stability and reliability. With robust aluminum case and damping rubber support leg, easy for transportation.
c. Touch screen LCD display, or external mouse can be connected.
It shows below parameters,
Resonance voltage(target voltage), test frequency, measurement frequency, LV voltage, LV current, Withstand voltage time, over-voltage and over-current protection, flashover protection, voltage boosting and timing, operation mode switching, capacitance/inductance/frequency calculation, parameter query, frequency curve and voltage curve.
d. Parameters setting and selection
Starting frequency, end frequency, starting voltage, voltage boosting and timing, voltage divider ratio measurement, exciting transformer ratio, over-voltage and over-current protection, flashover protection, test mode, capacitance/inductance/frequency calculation, prompt and help.
e. Test mode: touch screen/external mouse operation, Auto/Semi-auto/Manual and other modes selection.
f. Protection function and information tips
HV over-voltage protection, LV over-current, over-current protection and Non-resonance protection, zero and flashover protection, emergency stop, low voltage protection.
g. Data storage function: Test result save(manual save), print, upload and return.
1) 50pcs test results can be saved.
h. Auto stabilivolt function. Voltage stability up to 1.0%.
i. Frequency adjusting range and resolution can be set.
Frequency adjusting range can be set at 30-300Hz, 45-100Hz, 200-300Hz as requirements.
Frequency resolution can be set at 0.1Hz, 0.2Hz, 0.5Hz, or 1.0Hz. Obtain optimized balance between efficiency and accuracy of harmonic adjusting.
j. Coarse tuning and fine tuning for frequency. Search resonance point automatically.
3. HV Reactor GDDK-44kVA/22kV (2pcs)
Rated capacity: 44kVA
Rated voltage: 22kV
Rated current: 2A
Inductance:48H (per set)
Quality factor: Q ≥30 (f=45Hz)
Type: Dry type
Weight: approx. 40kg
4. Capacitive Divider GDFR-30kV/6000pF (1 set)
I.Test Object and Requirement (denpend on customer's cable)
1. 6kv/185mm2 cable AC resonant test, the cable length is 1.574km, capacity is below 0.61uF, the testing frequency is 30~300Hz, testing voltage is 15kv, the testing time is 5min
2. 10kv/185mm2 cable AC resonant test, the cable length is 1.574km, capacity is below 0.61uF, the testing frequency is 30~300Hz, testing voltage is 22kv, the testing time is 5min
II. Working Environment
- Environmental temperature: -10ºC to 50ºC
- Related humidity: ≤ 90% RH
- Altitude: ≤ 1000m
III. Technical Data
- Rated capacity: 88kVA
- Input power supply: Single phase 220V/Three phase 380V; 50Hz
- Rated voltage: 22kV
- Rated current: 4A
- Working Frequency: 30-300Hz
- Output waveform: sine wave
- Waveform distortion rate: ≤1%
- Working time: constant working of 5mins under rated load. Working of 1min, under 1.1 times of rated voltage
- Temperature rise: ≤65K after constant working of 5mins under rated load
- Quality factor: Q ≥30 (f=45Hz)
- Protective function: Over-current, over-voltage and flashover protections for test object.
- Accuracy: 1.5% (RMS)
IV. Applied standard
GB10229-88 Reactor
GB1094 Power transformers
GB50150-2006 Standard for hand-over test of electric equipment installation engineering
DL/T 596-1996 Preventive test regulation of electric equipment
GB1094.1-GB1094.6-96 Protection class of Shell
GB2900 Electro-technical terminology
GB/T16927.1~2-1997 High voltage Testing Technique
V. Capacity Determination of the equipment
Designing two reactors, the single reactor is 44kVA/22kV/2A/55H, and the total capacity of the unit is 88kVA.
Verification:
1, 1.5kkm/185mm2 cable 1.574km AC withstand voltage test, capacitance ≤0.61uF, test frequency 30-300Hz, test voltage 15kV, test time 5min.
If two reactors are connected in parallel, then L=55/2=27.5H, then:
Test frequency: f=1/2π√LC=1/(2×3.14×√27.5×0.61×10-6)=38.86Hz
Test current: I=2πfCU test = 2π×38.86×0.61×10-6×15×103=2.23A.
2, 10kV/185mm2 cable 1.574km AC withstand voltage test, capacitance ≤ 0.61uF, test frequency 30-300Hz, test voltage 22kV, test time 5min.
If two reactors are connected in parallel, then L=55/2=27.5H, then:
Test frequency: f=1/2π√LC=1/(2×3.14×√27.5×0.61×10-6)=38.86Hz
Test current: I=2πfCU test = 2π×38.86×0.61×10-6×22×103=3.28A
The total capacity of this set is 88kVa, 2 pcs reactors, each reactor is 22kVA/22kV/2A/55H. The reactors used in parallel meets the testing requirements.
Reactors Test object | Reactors 22kVA/22kV 2pcs | Output voltage of exciting transformer |
| 6kV185mm2 1.574km length CABLE | 2pcs reactors in parallel | 1.5KV |
| 10kV/185mm² 1.574km length CABLE | 2pcs reactors in parallel | 1.5KV |
VI. Parameters for Individual Parts
1. Exciting Transformer GDJL-6kVA/1.5kV/0.4kV (1 set)
- Rated capacity: 6kVA
- Input voltage: 0-400V, single phase
- Output voltage: 1.5kV
- Type: Dry type transformer
- Weight: approx. 35kg
2. Variable frequency power supply GDTF -6kW/220/380V (1 set)
- Rated output capacity: 6kW
- Working power supply: 220/380±10%V(single/3-phase), power frequency
- Output voltage: 0-400V, single phase
- Rated input current: 15A
- Rated output current: 15A
- Voltage resolution: 0.01kV
- Voltage measuring accuracy: 1.5%
- Frequency adjusting range: 30-300Hz
- Frequency adjusting resolution: ≤0.1Hz
- Frequency stability: 0.1%
- Working time: constant working of 5mins under rated capacity.
- Temperature rise: ≤ 65K after constant working of 5mins under rated capacity.
- Noise: ≤50dB
- Weight: approx. 10kg.
It can realize below functions,
- The Variable frequency power supply can be placed in lengthways and in horizontal, suitable for on-site operation.
b. High stability and reliability. With robust aluminum case and damping rubber support leg, easy for transportation.
c. Touch screen LCD display, or external mouse can be connected.
It shows below parameters,
Resonance voltage(target voltage), test frequency, measurement frequency, LV voltage, LV current, Withstand voltage time, over-voltage and over-current protection, flashover protection, voltage boosting and timing, operation mode switching, capacitance/inductance/frequency calculation, parameter query, frequency curve and voltage curve.
d. Parameters setting and selection
Starting frequency, end frequency, starting voltage, voltage boosting and timing, voltage divider ratio measurement, exciting transformer ratio, over-voltage and over-current protection, flashover protection, test mode, capacitance/inductance/frequency calculation, prompt and help.
e. Test mode: touch screen/external mouse operation, Auto/Semi-auto/Manual and other modes selection.
f. Protection function and information tips
HV over-voltage protection, LV over-current, over-current protection and Non-resonance protection, zero and flashover protection, emergency stop, low voltage protection.
g. Data storage function: Test result save(manual save), print, upload and return.
1) 50pcs test results can be saved.
- The saved data can be showed on the screen. With USB port, data can be output to print or printed directly by the equipment.(If buyer need this requirements, please specify it on the contract.)
h. Auto stabilivolt function. Voltage stability up to 1.0%.
i. Frequency adjusting range and resolution can be set.
Frequency adjusting range can be set at 30-300Hz, 45-100Hz, 200-300Hz as requirements.
Frequency resolution can be set at 0.1Hz, 0.2Hz, 0.5Hz, or 1.0Hz. Obtain optimized balance between efficiency and accuracy of harmonic adjusting.
j. Coarse tuning and fine tuning for frequency. Search resonance point automatically.
3. HV Reactor GDDK-44kVA/22kV (2pcs)
Rated capacity: 44kVA
Rated voltage: 22kV
Rated current: 2A
Inductance:48H (per set)
Quality factor: Q ≥30 (f=45Hz)
Type: Dry type
Weight: approx. 40kg
4. Capacitive Divider GDFR-30kV/6000pF (1 set)
- Rated voltage: 30kV
- Capacitance: 6000pF
- Dielectric loss: tgσ ≤0.5%
- Divider ratio: 1000:1
- Measuring accuracy: 1.5%
- Weight: approx. 10kg
Related Category
Send Inquiry
Please Feel free to give your inquiry in the form below. We will reply you in 24 hours.
