Cost-effective, powerful, and robust — the KPM-K68i delivers best-in-class field testing convenience for semiautomatic and manual relay testing, backed by a 3-year guarantee of free repair and lifelong maintenance.
7-Channel Independent Output Architecture
4 Voltage + 3 Current Channels
Each output channel provides fully independent control of magnitude, phase angle, and frequency — enabling complex, real-world test scenarios with precision.
Versatile Waveform Generation
Generate a wide variety of output waveforms including:
- DC signals
- Pure sinewaves
- Sinewaves with percent harmonics at various phase angles
Key Features at a Glance
Built-In Display
Inbuilt 6.4" True Color TFT LCD display with keyboard and rotary encoder — fully operable without a laptop.
GPS Sync Testing
GPS synchronization via SMA antenna port enables precise end-to-end testing across substations.
Auto Report Creation
Automatic test report generation saves time and ensures consistent, professional documentation.
Battery Simulator
Independent variable DC battery simulator: 15–300V at 120W max — no external supply needed.
Built for Heavy-Duty Relay Testing
The KPM-K68i is engineered to test high-burden electromechanical relays with 3×10A continuous current outputs — no derating, no compromise.
Manual Mode
Quick relay testing facility with intuitive manual controls directly on the unit.
Dynamic Testing
Power system model for dynamic simulation and advanced protection scheme validation.
PC Software
Advanced PC software testing modules available as optional add-ons for automated workflows.
Current Generator Specifications
Output Ratings
- 3×35A @ 450VA AC (continuous)
- 1×105A @ 1200VA AC
- 3×20A @ 300W DC
- 3×10A continuously for high-burden relays
Accuracy & Quality
- Current Accuracy: <0.07%rd + 0.03%rg Typ. / <0.15%rd + 0.05%rg Guar.
- Distortion: <0.05% Typ. / <0.1% Guar. @ 0.5–35A AC
- Phase resolution: 0.001°
- Phase accuracy: <0.1° Guar. at 50/60Hz
Per Channel
Continuous AC current output per channel
Peak Output
Single-channel maximum AC output
Accuracy
Typical current accuracy (rd component)
Voltage Generator Specifications
AC Voltage Output
4×300V L-N @ 120VA Max
Accuracy: <0.07%rd + 0.03%rg Typ. @ 2–300Vac
Guar.: <0.12%rd + 0.05%rg @ 2–300Vac
Distortion: <0.05% Typ. / <0.1% Guar.
DC Voltage Output
3×300V @ 120W
Frequency range: DC–1KHz
Frequency accuracy: ±0.5ppm
Frequency resolution: 0.001Hz
Phase angle range: −360° to +360°
Phase accuracy: <0.02° Typ.
Binary I/O & Timing Specifications
Binary Inputs — 8 Pairs
Wet/dry contact type. Time resolution: 100µs. Debounce time: 0.25ms (software controlled). Time range: Infinite. Time errors: <±1ms @ 0.001–1s; <±0.1% @ >1s. Galvanic isolation: 4 isolated groups (1/2/3/4–8). Input impedance: 600KΩ.
Binary Outputs — 4 Pairs
Potential-free relay contacts, software controlled. AC break capacity: 400Vac / 8A / 2500VA max. DC break capacity: 300Vdc / 5A / 150W max.
Auxiliary DC (Battery Simulator)
Output range: 15–300V @ 120W max. Accuracy: <0.5%rg Guar. Fully independent and variable — ideal for simulating substation DC supplies in the field.
Safety & Protection Features
The KPM-K68i incorporates comprehensive protection systems to safeguard both the operator and the instrument during field use.
Arc-Clipping Detection
Automatic detection and protection against arc-clipping events.
Cabinet Grounding Alarm
Alerts operator to improper cabinet grounding conditions before testing begins.
Wrong Wiring Alarm
Detects and alerts on incorrect wiring connections to prevent equipment damage.
Overload & Overheat Protection
Automatic shutdown on overload or thermal overrun conditions.
Power Supply & Environmental Ratings
Power Supply
- Nominal input: 100 / 220 / 230VAC
- Permissible range: ±20% of rated (max 264VAC)
- Frequency: 50/60Hz (45–65Hz permissible)
- Max consumption: 1500VA
- Connector: IEC60320 standard AC socket
- Grounding: 4mm banana socket
Environmental & Physical
- Operating temperature: −10°C to +55°C
- Storage temperature: −20°C to +70°C
- Humidity: 5%–95% RH, non-condensing
- Dimensions: 490 × 362 × 155 mm
- Weight: <20 kg
- PC connection: 10/100M Base-Tx RJ45 Ethernet
- GPS sync port: SMA antenna
Ready for the Field. Built to Last.
The KPM-K68i combines laboratory-grade accuracy with rugged portability — weighing under 20kg and operating across a wide temperature range, it's engineered for real-world substation environments.
Software calibration for amplitude and phase is performed without opening the cabinet, ensuring fast, convenient precision adjustments in the field. Backed by a 3-year free repair guarantee and lifelong maintenance support, the KPM-K68i is a long-term investment in testing excellence.
3-Year Warranty
Free repair guarantee included
Lifelong Maintenance
Ongoing support for the life of the unit
No-Cabinet Calibration
Software-based precision adjustment
KPM-K68i Protection Relay Test Set