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Inter‑frequency Dielectric Loss Tester Tan‑Delta Measuring Instrument For High Voltage Power Equipment Test
| Place of Origin | China Mainland |
|---|---|
| Brand Name | MINGYANG |
| Model Number | MY-JS |
| Minimum Order Quantity | 1 |
| Price | 3000usd |
| Packaging Details | carton |
| Delivery Time | 1 week |
| Payment Terms | L/C,D/A,D/P,T/T,Western Union |
| Supply Ability | 1000pcs/month |
Product Details
| Type | Testing Machine | Voltage | 220V Electrical Equipment |
|---|---|---|---|
| Warranty | 2years | Power | Electric |
| Place Of Origin | Hubei, China | Customized Support | OEM |
| Protection Class | IP55 | Accuracy | Capacitance Range 3pF~60000pF |
| Test Current Range | 10μA~5A | Relative Humidity | <90% |
| Weight | 28kg | ||
| Highlight | 5kV-10kV High Voltage Insulation Resistance Tester,Capacitance Range 3pF~60000pF Megohmmeter,IP55 Protection Dielectric Loss Tester |
||
Product Description
Inter‑frequency Dielectric Loss Tester Tan‑Delta Measuring Instrument For High Voltage Power Equipment Test
Product Description
Dielectric loss measurement is a very basic method in insulation test. It can effectively detect the whole damp deterioration and partial defects of electrical equipment insulation. It is widely used in electrical manufacturing, installation of electrical equipment, handover and preventive testing. Measurement of dielectric loss of transformer, transformer, reactor, capacitor, bushing and arrester is the most basic method to measure their insulation performance.
Product Alias
Tan‑Delta Tester / Tan‑Delta Test Set / Dissipation Factor Tester / Power Factor Test Kit / Dielectric Dissipation Factor Tester / Capacitance & Dielectric Loss Measuring Instrument
Features
1. The instrument uses Fourier transform digital filtering technology to measure capacitance, dielectric loss and other parameters. The test result has high precision and is easy to realize automatic measurement.
2. The instrument adopts frequency conversion technology to eliminate 50Hz power frequency interference in the field. Even in the environment of strong electromagnetic interference, reliable data can be measured.
3. It is easy to operate with full touch LCD. Full touch LCD screen, super full graphics operation interface, each process is very clear, operators can use without additional professional training. The whole process can be measured by touch.
4. Storage data: It is equipped with a calendar chip and a large-capacity memory, which can save the test results at any time, view the historical records at any time, and print out. The current time and storage time can be displayed and printed at any time.
5. Scientific and advanced data management: Instrument data can be exported through U disk, and can be viewed and managed on any PC by special software.
6. The instrument is easy to operate and the measurement process is controlled by microprocessor. As long as the appropriate measurement mode is selected, the measurement of data can be completed automatically under the control of microprocessor.
7. Integrated model, with standard capacitor and high voltage power supply, is convenient for field test and reduces field wiring.
8. The instrument has high accuracy and can meet the requirements of oil dielectric loss measurement. Therefore, only standard oil cup and special testing line are needed to realize oil dielectric loss measurement.
9. It has the function of low voltage shielding for reverse wiring. Under the condition of 220 kV CVT bus grounding, it can measure the dielectric loss of 10 kV reverse wiring without disconnection.
10,Can do AC voltage withstand test. It is convenient for PT and CT to do AC voltage withstanding test twice and 400V low voltage system to do voltage withstanding test.
11. It can identify the frequency of external high-voltage power supply from 40Hz to 70Hz, and allow large capacity and high voltage dielectric loss test with power frequency power supply or series resonant power supply.
12. It has the function of CVT test and can realize the self-excitation test of CVT. It can set four protection restrictions of high voltage/current and low voltage/current to ensure the safety of person and equipment.
13. When testing CVT, not only the capacitance and dielectric loss values of C1 and C2 can be automatically tested, but also the total capacitance and dielectric loss values of CVT equipment can be tested.
14. With a thermal printer, it can print out, with a calendar clock, to facilitate users to produce test reports, with U disk output.
15. With computer interface. A computer can control 32 instruments, which can be integrated into an integrated high-voltage test vehicle to realize measurement, data processing and report output.
16. Grounding protection function. When the instrument is not grounded or grounded badly, the instrument does not enter the normal procedure and does not output high voltage. Overcurrent protection function, the instrument will not be damaged when the sample is short-circuit or breakdown.
17. Electric‑shock protection function. When the instrument operator is electrocuted, the instrument will immediately cut off the high voltage to ensure the safety of the test personnel.
18,Complies with the State Grid's specifications for data and communication technology of electrical equipment digital testing instruments. Built-in Bluetooth communication. (Optional)
Product Parameters
Application Scenarios
FAQ
Q1: Cannot finish complete dielectric loss measurement, partial measuring mode cannot be activated
Customer: When we test transformer dielectric loss on-site, some test modes cannot be selected and full measurement cannot complete. What is the possible cause?
Manufacturer: This fault frequently occurs in substation site test. Please troubleshoot step-by-step: First check all high-voltage cables, signal wires and grounding connections, ensure terminals are firm without looseness or oxidation. Second confirm correct wiring mode (positive / reverse / CVT self-excitation) is selected according to tested object. Check system parameter setting. If problem still exists, please contact technical support, do not open instrument cabinet.
Q2: Test data has big deviation compared with historical record, no system alarm
Customer: The tester runs without alarm, but tan-delta & capacitance data deviate obviously from historical records. How to solve it?
Manufacturer: Large deviation is mainly caused by poor contact, surface dirt on high-voltage equipment or field electromagnetic interference. Please clean the surface of tested high-voltage equipment terminals, re-check all wiring connections. Keep high-voltage test cables away from other large-current power lines to reduce interference. Re-perform measurement. If deviation remains, check actual insulation condition of the device under test.
Q3: Device triggers protection alarm during long-time continuous test, alarm still after power-cycle
Customer: After long-time continuous field test, protection alarm pops up. Power off and restart cannot clear alarm. Is internal hardware damaged?
Manufacturer: Mostly it is over-current / over-voltage protection lock instead of permanent damage. Cut off main power supply, keep power-off for 25 minutes for full reset. Re-power the instrument, clear alarm record on touch-screen menu and restart test. If alarm recurs, contact our technical support team, dis-assembly is forbidden.
Q4: Instrument auto-reset and communication failure in substation strong-interference site
Customer: In substation strong electromagnetic environment, the tester resets automatically occasionally and USB data communication fails. How to avoid this issue?
Manufacturer: Auto-reset & communication failure are usually caused by power-supply fluctuation and unreliable grounding. Use independent stable power source, do not share power loop with other high-power equipment. Complete reliable grounding for whole set instrument. Arrange test cables far away from high-voltage live equipment. Provide us site condition description if fault persists, we provide remote technical assistance.
Q5: Transportation, wiring and on-site operation notes
Customer: This portable dielectric loss tester is used for substation high-voltage equipment test. What points need attention for transport, installation and field work?
Manufacturer: This is high-voltage precision test instrument. 1. Reliable grounding must be finished before power-on. Operators shall follow local high-voltage safety regulation. 2. Strictly follow manual for wiring, wrong wiring will damage instrument and tested equipment, double-check wiring before test. 3. Avoid heavy impact and violent shaking during transportation. 4. Clean the surface of tested high-voltage equipment before measurement. 5. Store instrument in dry ventilated place, keep away from moisture. Read full user manual before first-time operation.
Q6: Shipping Method
Customer: If we place an order, how do you typically ship the goods? Will there be any issues with transporting bulky items such as reactors?
Manufacturer: We default to using dedicated logistics lines or brand-specific express shipping services; small-sized main units and accessories may also be shipped via standard courier services. Large items, such as reactors and excitation transformers, are packed using wooden crates or wooden frames for reinforcement to prevent bumps and moisture exposure during transit; a packing list is included with each package to facilitate item-by-item counting for you. Logistics costs are typically determined by both parties in accordance with the contract terms; after shipment, we will send you both the tracking number and the carrier's contact phone number for easy tracking.If your project site is remote or if delivery to the site is required with a specified logistics company, please inform us in advance when placing your order; we can then coordinate and arrange accordingly.
Q7: Delivery Lead Time
Customer: Our project is under tight deadlines; how long will it take for the order to be shipped after we place it? Can we request expedited shipping?
Manufacturer: Standard specifications – stock available; typically delivered upon receipt of the order. Orders can be shipped within [X] working days; for non-standard products requiring customized voltage levels, capacities, or reactor combination configurations, the production cycle typically ranges from [X] to [Y] days.The delivery time will be approximately 7-15 working days; the specific timeline shall be subject to the sales confirmation provided upon order placement. If your project has a tight schedule, please inform us of the latest expected delivery date before placing your order; we will first verify the production schedule and inventory status, and where possible, will coordinate expedited production and prioritize shipment. However, it is recommended to allocate sufficient transit time for logistics to avoid delaying on-site testing.
Q8: After-sales Service and Warranty
Customer: What is the warranty period for this equipment? If any issues arise during on-site use, how will your after-sales service respond?
Manufacturer: We provide a two-year free warranty on the entire unit and lifelong technical support services. During the warranty period, if issues arise due to defects in the equipment itself, we will provide free repair or replacement of components; when problems occur on-site, we commit to responding within 24 hours; most wiring and parameter configuration issues can be resolved through remote guidance via video or telephone; for cases where an on-site visit is necessary, we will arrange for our technicians to arrive at the location to resolve the issue. After the warranty period expires, we still offer repair services, with spare parts supplied at cost price for the long term, and software updates provided free of charge for life. Upon delivery of the equipment, we also offer free operational training (video operation guides)to ensure that your testing personnel can operate the equipment independently and proficiently; should you have any further questions, please feel free to contact our dedicated after-sales hotline directly.
Q9: Shipping methods for each region (Sea freight)
Customer: Our projects are distributed across several states, and our procurement volumes are substantial; are the shipping methods consistent across all states? How is the delivery time calculated?
Manufacturer: The specifications are identical; however, it should be specifically noted that this equipment set is large in size and heavy in weight—components such as the reactor and excitation transformer are all classified as heavy components. Therefore, regardless of which state or region the shipment is destined for, we will uniformly utilize sea freight transportation. The packaging employs export-grade wooden crates with reinforced structures, along with moisture-proof and rust-proof treatments; the design of these wooden crates is optimized for long-distance sea transport and multiple lifting and transshipment operations. Upon arrival at the destination, simply unpack the goods and conduct an inspection before putting them into use. Regarding delivery time, the sea freight transit period depends on the port of destination: near-sea routes are generally faster, whereas ocean routes may take longer; the exact number of days will be confirmed based on the shipping schedule specified in the bill of lading. We have a dedicated freight forwarding agency to handle booking of shipping space, customs declaration, insurance, and other related procedures; once the vessel departs, we will send you documents such as the bill of lading and the packing list, enabling you to arrange for the receipt of goods at the port of destination and their inland transshipment in advance
Shipping scenario
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