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HF-CH-203 Cable Damped Oscillating Wave Test System
The Cable Damped Oscillating Wave Test System (OWTS) is an all-in-one medium voltage cable tester. It supports AC withstand voltage testing and partial discharge measurement to accurately locate insulation flaws on cables and joints. Fully compliant with IEC60270 specifications, it serves new cable acceptance and aged cable preventive maintenance, greatly boosting field work efficiency.
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The Cable Damped Oscillating Wave Test System (OWTS) is an integrated testing instrument for medium-voltage power cables. Adopting the damped oscillating wave principle, it performs both AC withstand voltage tests and partial discharge detection. It accurately finds hidden insulation faults on cable bodies and joints. Compliant with IEC 60270 standards, it is used for handover acceptance of new cables and preventive maintenance of aged cables. The dual-function design greatly improves field testing efficiency.
Product Description: Cable Damped Oscillating Wave Test System (OWTS)
Our Cable Damped Oscillating Wave Test System, also known as OWTS, is a dual-functional all-in-one testing equipment tailored for 35kV and below medium-voltage XLPE power cables. It ingeniously integrates variable frequency series resonance AC withstand voltage testing and damped oscillating wave partial discharge inspection into one unit, eliminating the need to purchase two separate devices and cutting your procurement costs significantly.
In strict accordance with the IEC 60270 international standard, the device generates damped oscillating waves to excite tiny partial discharge signals inside cable insulation. It can accurately detect and precisely locate hidden insulation defects, cable joint damage and aging problems with positioning accuracy up to 1% of total cable length. Built-in combined hardware and software anti-interference technology guarantees stable and reliable test data even at complex electromagnetic field sites such as substations.
Equipped with professional analysis software, the system automatically adjusts test voltage, collects real-time waveforms, records discharge volume data, stores test records and generates standardized test reports with one click. It is widely applicable for handover acceptance tests of newly laid cables before commissioning, as well as regular preventive diagnostic maintenance for aging out-of-service power cables. Portable modular structure and shockproof packaging facilitate convenient transportation and on-site field testing worldwide.
Technical Parameters
| Item | Specification |
|---|---|
| Oscillation Frequency Range | 20Hz ~ 300Hz |
| Applicable Cable Length Range | 200m ~ 20km |
| High Voltage Charging Current | 5mA |
| High Voltage Switch | Trigger Mode: Laser-triggered high voltage switch |
| High Voltage Switch Parameters | Conduction Time: 1μs On-state Resistance: ＜1Ω |
| High Voltage Switch Control | Optical fiber communication |
| Partial Discharge Measuring Range | 1pC ~ 100nC |
| Partial Discharge Level Test & Bandwidth | Compliant with IEC 60270 standard issued by IEC |
| Partial Discharge Location Bandwidth | Auto-adjustable: 150kHz ~ 45MHz |
| Partial Discharge Location Accuracy | 1% of total cable length (minimum resolution: 2m) |
| Dielectric Loss Measuring Range | 0.1% ~ 10% |
| Real-time Partial Discharge Sampling Rate | 100MHz |
| Partial Discharge Sampling Storage Depth | 32MB (capable of recording 300ms data) |
| Control Mode | Wireless control |
| PD Calibration Mode | Automatic / Manual |
| Time Domain Pulse Reflection Joint Location Function under Calibration Mode | Automatically lock cable joint positions |
Packing List: Cable Damped Oscillating Wave Test System (OWTS)
| No. | Item Name | Qty | Unit | Notes |
|---|---|---|---|---|
| 1 | Damped Oscillating Wave Main Cabinet (with casters) | 1 | Set | High voltage resonance host, core power unit |
| 2 | High Voltage Voltage Divider | 1 | Piece | For voltage measurement & sampling |
| 3 | Partial Discharge Signal Acquisition Sensor & Clamp | 1 | Set | Capture cable PD signals |
| 4 | Industrial Testing Laptop (Pre-installed analysis software) | 1 | Piece | Data collection, waveform display & report generation |
| 5 | Wireless Remote Controller | 1 | Set | Wireless operation & parameter adjustment |
| 6 | High Voltage Connecting Cables, Grounding Wires & Accessories | 1 | Set | All wiring fittings for field connection |
| 7 | Power Input Cable | 1 | Piece | Mains power supply cord |
| 8 | English Operation Manual | 1 | Copy | Detailed operation & maintenance guidance |
| 9 | Factory Calibration Certificate | 1 | Copy | For overseas project acceptance |
| 10 | Product Quality Certificate & Warranty Card | 1 | Set | After-sales warranty voucher |
| 11 | Heavy Duty Shockproof Aluminum Transport Cases | 2 | Pcs | Protect equipment during sea & land transportation |
FAQ | Cable Damped Oscillating Wave Test System (OWTS)
Q1: What is the Cable Damped Oscillating Wave Test System?
A: It is an integrated professional device for medium voltage power cables. It performs damped oscillating wave partial discharge detection and AC withstand voltage test together to inspect cable insulation faults.
Q2: What length of power cables can this OWTS system test?
A: It supports cable lengths ranging from 200 meters up to 20 kilometers, meeting testing demands for most on-site underground power cables.
Q3: Does the partial discharge test comply with international standards?
A: Yes. The partial discharge detection fully complies with the IEC 60270 international standard for accurate and authoritative test results.
Q4: How precise is the partial discharge positioning accuracy?
A: The positioning accuracy reaches 1% of the total cable length, with a minimum resolution of 2 meters, able to pinpoint defective cable joints and insulation damage.
Q5: What is the partial discharge measurement range of the equipment?
A: The measurable partial discharge range is 1pC ~ 100nC, which can capture tiny early insulation discharge signals effectively.
Q6: Can the system measure dielectric loss of cables?
A: Absolutely. Its dielectric loss measuring range covers 0.1% to 10%, helping users evaluate the overall aging condition of cable insulation.
Q7: How is the equipment controlled on site?
A: It adopts wireless control mode for safe and convenient operation far away from the high-voltage testing area.
Q8: Does it have automatic cable joint locating function?
A: Yes. With time domain pulse reflection technology, it can automatically identify and lock the positions of all cable joints during calibration.
Q9: What advantages does laser-triggered high voltage switch bring?
A: It features ultra-short 1μs conduction time and low on-resistance below 1Ω, ensuring stable generation of standard damped oscillating waves.
Q10: Is the system equipped with professional data storage and sampling functions?
A: It has a 100MHz real-time sampling rate and 32MB storage space, which can continuously record 300ms test waveform data for later analysis and report output.
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