The MPF300 Portable Relay Test Kit is a 3‑phase protection relay test set engineered for Indian utilities, panel builders and testing service companies who want Omicron, Doble or Megger–class performance at a far more economical investment. With 3 × 40 A current channels and 4 × 300 V voltage channels, it is one of the very few relay test kits in this segment that offers a full 300 V AC output per phase, giving enough voltage headroom for modern numerical relays used across Indian substations and power plants.
Ideal alternative to Omicron, Doble, Megger
Many Indian customers know global brands like Omicron CMC, Doble, Megger, Kingsine and Ponovo for secondary injection and protection relay testing. MPF300 positions itself as a cost‑effective alternative to these international systems while still providing 3‑phase current, 4‑phase voltage, local control and advanced test modules required for distance, differential, overcurrent, earth‑fault and directional relay testing.
For EPCs, OEM panel builders and service providers who cannot justify the cost or import lead time of Omicron or Doble kits, MPF300 delivers the essential functionality needed for relay commissioning and maintenance in AIS and GIS substations, switchboards and industrial plants across India. The unit integrates easily into existing testing fleets that may already include Omicron, Megger, Kingsine or Ponovo kits, giving teams an additional high‑power, portable relay tester dedicated to routine jobs.
Unique 300 V output advantage
Unlike many entry‑level relay test sets that are limited to 150–250 V output, MPF300 provides 4 × 0–300 V AC L‑N (2 × 0–600 V L‑L) with 100 VA per channel, plus DC ranges up to ±424 V. This high voltage capability is a key differentiator and allows realistic testing of numerical distance, overvoltage, synchronising and other voltage‑dependent protections without external boosters.
Combined with 3 × 0–40 A (up to 100 A 1‑phase) current capability, Indian relay engineers can perform end‑to‑end secondary injection tests on a wide variety of make and model relays installed in transmission, distribution and industrial networks. The high‑accuracy linear amplifiers (error typically < 0.1% rd. + 0.02% rg., THD < 0.1%) ensure precise pick‑up, drop‑off and time‑current characteristic verification comparable to premium imported brands.
Designed for Indian field conditions
MPF300 is built for tough Indian site environments with 16 kg portable construction, 90–260 V AC universal power supply and operating temperature from 0–45 °C, suitable for most substation and plant locations. The 7" colour touch screen with local control software lets engineers run tests even where laptop use is difficult, such as cramped control rooms or outdoor switchyards.
The in‑built software provides 13+ dedicated test modules, including Any Test sequences, Relay Test (pick‑up/drop‑off and trip time), Frequency Test, Low Voltage, Harmonic Test, Inverse Time, Power Relay, Differential Relay, Zone Time, Zero Sequence and System Test for complete scheme verification. This means Indian users can handle everything from simple overcurrent relays to complex transformer differential and distance protections using a single portable kit.
Perfect fit for Indian buyers
MPF300 is ideal for:
State and private power utilities looking for a reliable secondary injection kit without the high capital cost of Omicron or Doble systems.
Relay and panel manufacturers in India who need an in‑house test kit to support routine production testing and FAT activities.
Testing and commissioning contractors who want a robust, easy‑to‑carry relay test kit with 300 V output for daily field jobs across multiple sites.
By combining high 300 V voltage output, powerful current channels, advanced software modules and an attractive price level for the Indian market, MPF300 stands out as one of the most practical and value‑for‑money relay test kits available at electricaltestkit.com for customers comparing alternatives to Omicron, Doble, Megger, Kingsine and Ponovo
Frequently Asked Questions
Q1. What is the MPF300 Protection Relay Test Kit?
The MPF300 is a three‑phase portable protection relay test kit with 3 current channels (up to 40 A each) and 4 voltage channels (up to 300 V AC each), designed for testing numerical and electromechanical relays in substations, power plants and industrial networks.
Q2. How is MPF300 different from other relay test kits in India?
MPF300 is one of the few economical relay test kits offering full 0–300 V AC per phase (L‑N) along with 3 × 40 A current channels, making it suitable for a wide range of modern protection relays without external boosters, unlike many low‑voltage secondary injection sets.
Q3. Is MPF300 an alternative to Omicron, Doble, Megger, Kingsine or Ponovo kits?
Yes, for many routine and advanced protection tests, MPF300 is a cost‑effective alternative to imported brands such as Omicron, Doble, Megger, Kingsine and Ponovo, especially for Indian utilities, EPCs and panel builders who need reliable performance with lower total ownership cost.
Q4. What type of relays can be tested with MPF300?
The kit can test overcurrent, earth‑fault, voltage, frequency, distance, directional, transformer differential, generator and busbar protection relays, as well as logic schemes using its built‑in system test module.
Q5. What are the voltage output capabilities of MPF300?
MPF300 provides 4 × 0–300 V AC L‑N (2 × 0–600 V L‑L) and DC ranges up to ±424 V, each with up to 100 VA, allowing realistic testing of voltage‑dependent protections such as over/under‑voltage, synchronism check and distance relays.
Q6. What are the current output capabilities?
It has 3 × 0–40 A AC current channels (350 VA typ. each) and can deliver up to 100 A in single‑phase mode, plus DC current up to ±60 A, suitable for high‑burden relays and CT‑related tests.
Q7. How accurate is the MPF300?
Voltage and current outputs have typical errors within < 0.1% rd. + 0.02% rg. with low total harmonic distortion (THD < 0.1% typ.), giving accuracy comparable to premium international relay test systems.
Q8. Does the MPF300 support automatic testing?
Yes, the local control software includes around 13 dedicated test modules and an “Any Test” / Sequence function where you can define up to 200 states, enabling fully automatic test plans for repetitive jobs.
Q9. What about binary inputs and outputs?
The unit provides 8 binary inputs (0–250 V AC/DC) and 4 potential‑free relay outputs so you can monitor relay contacts and control external circuits during scheme and system tests.
Q10. Is a PC required to use MPF300?
No, MPF300 has an in‑built 7" colour touch screen and local control software, allowing complete manual and automatic testing directly from the front panel; a PC can be used optionally for report handling and backup.
Q11. What test modules are available in the kit?
Key modules include Relay Test (pick‑up/drop‑off and timing), Frequency Test, Low Voltage, Harmonic Test, Inverse Time, Power Relay, Differential Relay, Zone Time, Zero Sequence and System Test for full scheme verification.
Q12. Can MPF300 test numerical relays from different brands?
Yes, it can test most microprocessor‑based relays from leading Indian and international manufacturers as long as the required current and voltage ratings are within the output ranges of the kit.
Q13. Is MPF300 suitable for Indian site conditions?
The kit operates from 90–260 V AC, 45–65 Hz and can be used between 0–45 °C with up to 95% non‑condensing humidity, making it suitable for typical Indian substation and industrial environments.
Q14. Who are the typical users in India?
Typical users include state and private power utilities, EPC contractors, relay and panel manufacturers, testing & commissioning service companies, maintenance teams in steel, cement, oil & gas, metro and data‑centre projects.
Q15. What is the approximate delivery time in India?
Typical delivery is about 4–6 weeks from order confirmation, depending on stock availability, customization and logistics within India.
Q16. What warranty and after‑sales support is available?
MPF300 is generally supplied with warranty applicable in India and local technical support, including application assistance, training support and service coordination through the us . Detailed terms will be provided with the quotation.
Q17. How does the pricing compare with Omicron or Doble kits?
For most Indian buyers, MPF300 offers significantly lower initial investment and lifecycle cost compared to flagship Omicron or Doble systems, while still covering the majority of day‑to‑day protection relay test requirements.
