6 Phase Relay Test Kit With 0.2% Accuracy And 600VA Power For Secondary Injection

Customer: After powering on the device, the output immediately triggers a "ding" alarm, and the current open-circuit indicator light on the panel also lights up; what is causing this?

Manufacturer: There are generally several possible causes for an alarm; we recommend troubleshooting them in the following order: First, check whether the power amplifier button is pressed and whether the indicator light is lit; if the power amplifier is not enabled, the output will trigger an alarm; second, check whether the current output circuit is open-circuited or whether the load exceeds the actual output range, and ensure that the test clamps are securely connected and properly crimped; third, check whether there is a short circuit between the phase-to-phase or phase-to-neutral points of the voltage output; you may first disconnect all wiring connected to the voltage output and then attempt the operation again. Additionally, please check whether the on-site power supply voltage is excessively high—when it exceeds 260V, the device will also trigger an alarm upon startup. If the alarm persists after these troubleshooting steps, please take a photo of the panel status and send it to us, and we will arrange for a technical specialist to provide remote assistance for diagnosis.

Customer: The test instrument displays an output current of 5A, but the sampled value shown on the protection device does not match; there is still a significant deviation. Is this due to the test instrument's low accuracy?

Manufacturer: The issue may not necessarily stem from accuracy; we recommend first checking three key points: First, confirm that the frequency setting for each output channel is 50 Hz; if the frequency is incorrectly set, the sampled values will exhibit abrupt jumps; second, verify whether the current, voltage phase sequence, polarity, and wiring configuration on the protection device side are correct, and whether the CT and PT transformation ratio parameters in the device match those at the field site; third, disconnect all connections to the test instrument and use a standard meter to check whether the output amplitude of the suspicious port is within normal limits. If the measurement by the standard meter is normal, the problem is most likely located on the protection device side or in the secondary circuit; if the measurement by the standard meter also shows deviation, it indicates that the equipment requires calibration. Our product features a software-based self-calibration function, eliminating the need to open the chassis or adjust the potentiometer; you may contact our after-sales support to obtain the calibration procedure, or send the equipment back to the manufacturer for free calibration.

Customer: During on-site testing, I feel a slight static shock from the test instrument's chassis; sometimes, the test data is also affected by interference and fluctuates. How should this be addressed?

Manufacturer: This issue is typically caused by inadequate grounding. Please verify whether the ground wire of the power supply system is reliably grounded, and check whether the ground terminal of the test instrument is connected to a dedicated test grounding network. Reliable grounding not only eliminates static electricity and reduces the impact of electromagnetic interference on test results but also serves as a critical safety measure; in environments with strong electromagnetic interference or stringent safety requirements, it is imperative to ensure that the three-core ground terminal of the power cable is reliably grounded before initiating the test. Additionally, the test cables and sampling cables should be positioned as far away as possible from strong interference sources such as frequency converters and large motors, to prevent induced interference from entering the circuit.

Customer: Previously, a colleague messed up the software interface; now the parameters are incorrect, some data cannot be entered, and the factory default values cannot be found. Is there any quick way to restore them?

Manufacturers: Yes, some do. If errors occur in the interface data or if normal input is not possible during operation, you can follow these steps: Shut down the system, then enter the Windows operating system; locate the "para" folder within the relay protection software directory and delete it; restart the system and run the test program again. All parameters on the interface will then automatically revert to their factory default values, allowing for a quick resolution of software configuration anomalies without affecting the hardware. A reminder: Before proceeding with these operations, it is recommended to use a USB flash drive to back up the required test records and setting parameters; ensure that the USB flash drive is clean and virus-free, and do not use the USB flash drive to install any other software on this system.

Customer: When performing motion time tests, sometimes the measured time is inaccurate, or even the input signal shows no response; how should the input signal be connected in such cases?

Manufacturer: The input signals of this device are compatible with both open contact and potential (0–250 V DC) inputs. When using open contacts, ensure that the contact capacity is sufficient and that there is no severe vibration; when using the potential input, ensure that the polarity and voltage level are correctly connected. If time measurement is inaccurate, first verify whether the selected input signal mode (open contact/potential) in the software matches the actual wiring configuration, and whether the action threshold settings are correct; then, check whether the test leads are securely connected and whether the shielding layer is properly grounded. Finally, it is strongly emphasized: it is strictly prohibited to connect external AC or DC power supplies to the voltage or current output terminals of the tester; otherwise, the internal power amplifier module may be directly burned out, resulting in irreversible hardware damage. For field wiring, two personnel must cross-verify all connections before powering on the device.

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.

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.

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.

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 advanceCustomer: 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?