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3‑Phase Microcomputer Relay Protection Tester 3I3V Relay Protection Test Set
| Place of Origin | China Mainland |
|---|---|
| Brand Name | MINGYANG |
| Model Number | MY-S903 |
| Minimum Order Quantity | 1 |
| Price | 3200usd |
| Packaging Details | carton |
| Delivery Time | 1 week |
| Payment Terms | L/C,D/A,D/P,T/T,Western Union |
| Supply Ability | 3200pcs/month |
Product Details
| Warranty | 2 Years | Power | Electronic |
|---|---|---|---|
| Place Of Origin | Hubei, China | Customized Support | OEM, ODM, OBM |
| DC Current Output | 0~±10A / Phase, 0~±30A / 3 Parallel | Line DC Voltage Output | 0~±320V |
| Line AC Voltage Output | 0~240V | 3 Phase Parallel AC Current Output | 0~120A |
| Highlight | 3 Phase Parallel AC Current Output Protection Relay Tester,High Precision D/A Converter Current Injection Test System,True Color LCD Display Digital Relay Tester |
||
Product Description
3‑Phase Microcomputer Relay Protection Tester 3I3V Relay Protection Test Set
Product Description
This advanced 3 Phase Protection Relay Tester features a digital second current injection test system designed for precision testing and verification of protective relays in industrial and utility applications.
Product Alias
3‑Phase Microcomputer Relay Protection Tester / Three‑phase Relay Protection Test Set / 3I‑3V Protection Relay Calibrator / Three‑phase Relay Calibrator / Microprocessor‑based Three‑phase Relay Test System / Portable Relay Protection Test Kit
Features
3‑Phase Microcomputer Relay Protection Tester / Three‑phase Relay Protection Test Set / 3I‑3V Protection Relay Calibrator / Three‑phase Relay Calibrator / Microprocessor‑based Three‑phase Relay Test System / Portable Relay Protection Test Kit
Features
- High-performance industrial control computer for reliable operation
- True color LCD display with integrated tracking ball and optimized keyboard
- Convenient data access, communication, and software upgrade capabilities
- Simple and intuitive operation for easy user mastery
- High-speed digital control processor for precise output control
- High-precision D/A converter ensuring accuracy across full current and voltage range
- Advanced voltage and current amplifier systems
- Comprehensive digital input and output interfaces
- Auxiliary DC power supply output for specialized applications
Product Parameters
1. AC current source (3 * 30A)
2. DC current source
3. AC voltage source
4. DC voltage source
5. switching value terminal
6. others
Application Scenarios
1. AC current source (3 * 30A)
| Single phase current output (RMS) | 0 -- 30A / phase, accuracy: 0.2% ± 5mA |
| Three phase parallel output (RMS) | 0 -- 90A / three phase in phase parallel output |
| Allowable working value of phase current for a long time (effective value) | 10A |
| Maximum output power per phase | 300VA |
| Maximum output power of three phase parallel current | 800VA |
| Maximum output allowable working time of triple parallel current | 5s |
| frequency range | 0 -- 1000Hz, accuracy 0.001Hz |
| Harmonic number | 2--20second |
| phase | 0--360The accuracy is 0.1 degree |
| DC current output | 0--± 10A / phase, accuracy: 0.5% ± 5mA |
| Single phase voltage output (RMS) | 0 -- 120V / phase, accuracy: 0.2% ± 5mv |
| Line voltage output (RMS) | 0--240V |
| Phase voltage / line voltage output power | 75VA/100VA |
| frequency range | 0 -- 1000Hz, accuracy: 0.001Hz |
| Harmonic number | 2--20second |
| phase | 0--360Degree, accuracy: 0.1 degree |
| Single phasevoltage output amplitude | 0--± 160V, accuracy: 0.2% ± 5mv |
| Output amplitude of line voltage | 0--±320V |
| Phase voltage / line voltage output power | 90VA/180VA |
| Switch input terminal | 8yes |
| Air contact | 1 -- 20 mA, 24 V, internal active output of the device |
| Potential reversal | Passive contact: low resistance short circuit signal Active contact: 0-250V DC |
| Switch output terminal | 4Yes, no contact, breaking capacity: 110V / 2a, 220V / 1a |
| time frame | 1ms -- 9999s, measuring accuracy: 1ms |
| Volume and weight of portable series single machine | Volume 328 x 168 x 250mm3, about 12.5kg |
| Power Supply | AC110V±10%,60Hz,10A |
Application Scenarios
FAQ
Q1: What is a 3‑phase microcomputer relay protection tester used for?
This portable 3I‑3V relay test equipment is mainly used for commissioning, calibration and inspection of various three‑phase numerical relays, over‑current protection, differential protection, auto‑reclosing and other secondary protection devices in power substations. It supports both on‑site field test and laboratory test.
Q2: Does this tester require an external PC to complete tests?
No external PC is required. The tester is built‑in with industrial control unit, 8.4‑inch TFT display and physical keypad, which can finish all test operations independently. PC connection is only optional for data export and test report output.
Q3: What are the main output specifications of this tester?
It provides 3‑channel current and 3‑channel voltage output, equipped with complete digital input and digital output terminals. It adopts DSP+FPGA main‑control architecture and 16‑bit DAC to generate high‑quality test waveforms.
Q4: Does the 3‑phase relay tester support self‑calibration function?
Yes. It comes with built‑in software self‑calibration function. There is no need to open the cabinet and manually adjust potentiometers, greatly improving the long‑term accuracy stability of the instrument.
Q5: What are the environmental requirements for operation and storage?
The working ambient temperature ranges from ‑10℃ to +50℃. Keep the unit stored in dry and ventilated environment, avoid heavy dust, moisture and strong electromagnetic interference. The shock‑proof suitcase‑style housing adapts to harsh outdoor substation field conditions.
Q6: How to handle fault alarms occurring during field testing?
First stop the ongoing test and cut off power supply. Check wiring connections, grounding status and surrounding working environment. Reboot the device and clear fault status. If the alarm still exists, please record fault code and fault phenomenon, then contact our technical support. Do not disassemble the tester by yourself.
Q7: Shipping Method
If we place an order, how do you typically ship the goods? Will there be any issues with transporting bulky items such as reactors?
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.
Q8: Delivery Lead Time
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?
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.
Q9: After-sales Service and Warranty
What is the warranty period for this equipment? If any issues arise during on-site use, how will your after-sales service respond?
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.
Q10: Shipping methods for each region (Sea freight)
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?
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.
Q1: What is a 3‑phase microcomputer relay protection tester used for?
This portable 3I‑3V relay test equipment is mainly used for commissioning, calibration and inspection of various three‑phase numerical relays, over‑current protection, differential protection, auto‑reclosing and other secondary protection devices in power substations. It supports both on‑site field test and laboratory test.
Q2: Does this tester require an external PC to complete tests?
No external PC is required. The tester is built‑in with industrial control unit, 8.4‑inch TFT display and physical keypad, which can finish all test operations independently. PC connection is only optional for data export and test report output.
Q3: What are the main output specifications of this tester?
It provides 3‑channel current and 3‑channel voltage output, equipped with complete digital input and digital output terminals. It adopts DSP+FPGA main‑control architecture and 16‑bit DAC to generate high‑quality test waveforms.
Q4: Does the 3‑phase relay tester support self‑calibration function?
Yes. It comes with built‑in software self‑calibration function. There is no need to open the cabinet and manually adjust potentiometers, greatly improving the long‑term accuracy stability of the instrument.
Q5: What are the environmental requirements for operation and storage?
The working ambient temperature ranges from ‑10℃ to +50℃. Keep the unit stored in dry and ventilated environment, avoid heavy dust, moisture and strong electromagnetic interference. The shock‑proof suitcase‑style housing adapts to harsh outdoor substation field conditions.
Q6: How to handle fault alarms occurring during field testing?
First stop the ongoing test and cut off power supply. Check wiring connections, grounding status and surrounding working environment. Reboot the device and clear fault status. If the alarm still exists, please record fault code and fault phenomenon, then contact our technical support. Do not disassemble the tester by yourself.
Q7: Shipping Method
If we place an order, how do you typically ship the goods? Will there be any issues with transporting bulky items such as reactors?
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.
Q8: Delivery Lead Time
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?
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.
Q9: After-sales Service and Warranty
What is the warranty period for this equipment? If any issues arise during on-site use, how will your after-sales service respond?
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.
Q10: Shipping methods for each region (Sea freight)
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?
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
Scene (One)
Scene (Two)
Attachment Directory
Attachment Image
Scene (Two)
Attachment Directory
| Serial No | Description | Quantity | Unit |
|---|---|---|---|
| 1 | Testing Clip | 32 | Pieces |
| 2 | Shorting Cable | 1 | Set |
| 3 | Fuse Tube (2ax5,10ax5) | 10 | Pieces |
| 4 | Power Supply Cable | 1 | Piece |
| 5 | Operating Manual | 1 | Copy |
| 6 | Usb Communication Line | 1 | Piece |
| 7 | Testing Cable | 1 | Set |
| 8 | Testing Cable | 1 | Set |
| 9 | Testing Cable | 1 | Set |
| 10 | Grounding Cable | 1 | Piece |
Attachment Image
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