Wuhan Mingyang Technology Co., Ltd
                                                                                                           
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Portable MOA Characteristic Analyzer for Zinc Oxide Lightning Arrester

Price Negotiable
Price: 2800usd
MOQ: 1
Delivery Time: 1 week
Brand: MINGYANG
Product Description

Portable MOA Characteristic Analyzer for Zinc Oxide Lightning Arrester


Product Description

Zinc oxide lightning arrester charged tester is used to test the electrical performance of zinc oxide lightning arrester special instrument, the instrument is suitable for various voltage levels of zinc oxide lightning arrester charged or blackout test, so as to timely discover the equipment internal insulation moisture and valve aging and other dangerous defects.


Product Alias

Zinc Oxide Surge Arrester Tester/MOA Leakage Current Analyzer/Live Line Surge Arrester Test Instrument/Surge Arrester Parameter Tester/MOA Resistive Current Measuring Device
Features


1. large wireless distance: compatible with wireless synchronisation, wireless transmission signal is more than 1500m, optional can reach 5000m.
2. synchronisation: support 485 wired synchronisation, wireless synchronisation; no voltage mode through the software calculation to find the voltage reference three synchronisation methods.
3. charged blackout compatible: suitable for lightning arrester charged, blackout or test room and other places to use.
4. a large number of range acquisition: voltage acquisition range 0-250V, current acquisition 0-20mA.
5. three-phase same test: truly three-phase current, three-phase voltage test at the same time, improve work efficiency; at the same time support single-phase test or two-phase test, convenient choice.
6. optional voltage mode: support to take three-phase or B-phase voltage reference as voltage reference; support to take B-phase electric field intensity as voltage reference by inductive plate (optional), this function is convenient for voltage sampling.
7. current mode optional: can be connected to the lightning arrester counter with a line at both ends of the sampling leakage current, you can also use the current clamp to collect the lightning arrester grounding line leakage current (optional).
8. standard side with anti-interference processing: with anti-interference calculation function and angle compensation function, completely solve the case of three-phase mutual interference 220KV and above the voltage level needs.
Product Parameters


Ppower supply built-in lithium battery power supply or DC8.4V adapter
Measuring range Leakage current: 0-20mA (expandable); (Optional: current clamp sensor 0-20mA.)
Voltage: 30-250V (expandable); (Optional: electric field strength input range: 30kV/m~300kV/m.)
Angle: 0-360º
Resistive Current: 0-20mA (Expandable)
Capacitive current: 0-20mA (expandable);
Measurement accuracy Current: full current >100μA: ±5% reading ±1 digit;
Voltage: Reference voltage signal >30V: ±5% reading ±1 digit.
Measurement parameters Leakage current: full current waveform, fundamental RMS value, peak value.
Leakage current resistive component: waveform
1, 3, 5, 7, 9 times RMS.
Positive peak Ir+ Negative peak Ir-.
Capacitive current fundamental waveform.
Voltage: Voltage waveform, voltage RMS.
Phase angle difference, power consumption.
Voltage reference signal sampling method Wired synchronisation: 40m (expandable)
Wireless synchronisation: >1500m (expandable)
Lithium battery parameters Charging time > 2.5 hours
Continuous working time > 7 hours
Intermittent working time > 7 x 24 hours
Size 42*34*18cm
Weight 7.5kg


Application Scenarios
FAQ

Question 1: Inaccurate leakage current reading during field live test
Customer: When conducting on-site live test for zinc oxide arrester, the measured leakage current value is unstable and shows obvious deviation, what leads to this issue?
Manufacturer: First check whether the voltage signal wiring and current sensor clamp are installed correctly and tightly, avoid loose clamping or wrong phase connection. Confirm strong electromagnetic interference around the substation site, keep test cables away from high voltage busbars. Check if the current clamp is damaged or contaminated by dust. Recalibrate the instrument before re-testing. If the problem remains, stop testing and contact technical support. Do not disassemble the internal circuit of the instrument.
Question 2: Touchscreen no response after powering on
Customer: After turning on the portable MOA analyzer, the touch screen cannot respond to tapping and cannot enter test interface, what should we do?
Manufacturer: Check the power supply connection first, confirm the power cable is firmly plugged and the input voltage meets instrument requirement. Power off the device, wait for 3 minutes then restart. Check if the screen surface has water, heavy dust or scratch affecting touch function. Avoid operating in over-high temperature environment. If touch function still fails, stop using and contact manufacturer support. Do not pry open the screen shell.
Question 3: Built-in printer fails to print test report
Customer: After finishing arrester test and saving data, the built-in printer cannot print out report paper or prints blank paper, what causes this?
Manufacturer: Open the printer compartment and check whether thermal paper is loaded correctly, confirm paper direction and enough paper remaining. Check if the print head is covered by dust or dirt, gently clean print head with dry soft cloth. Check print setting in system menu to make sure print function is enabled. Restart the instrument and try printing again. If still no output, contact technical support. Do not touch print heating element directly.
Question 4: Cannot save or query historical test data
Customer: After completing MOA field test, the instrument fails to store test records, or saved data cannot be found in data query menu, what is the reason?
Manufacturer: Enter system setting page to check available storage space of the device. Confirm the operation steps are correct after test completion, click save button before exiting test page. Check if power cut happens right before saving data. Restart the analyzer and check data folder again. Avoid deleting system files manually. If data storage function keeps abnormal, contact technical support for maintenance.
Question 5: Three-phase test mode cannot start normally
Customer: When selecting three-phase test mode to measure multiple zinc oxide arresters, the test cannot launch and prompts signal exception, what causes this problem?
Manufacturer: Verify all three groups of voltage and current wiring are connected to corresponding phases correctly, no cross phase wiring. Confirm all tested arresters are in normal live operating state. Check current clamps for each phase are tightly fixed on the grounding wire of arresters. Remove strong interference sources nearby and recheck wiring. Restart instrument and reselect three-phase mode. If alarm persists, stop test and contact technical support. Do not perform wiring operation when substation is live without safety protection.
Question 6: 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.
Question 7: 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.
Question 8: 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.
Question 9: 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
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Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company Wuhan Mingyang Technology Co., Ltd
Location Hao Mai Mansion, No. 11, Wudayuan First Road, East Lake High-Tech Development Zone, Wuhan, Hubei Province, P.R.China
Contact Person Emma Zhang

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