Description
The MULTISPAN (Panel Mount) Multifunction 3 Phase Protection Relay MPD-192 is a robust multifunction protection relay designed to monitor and protect 3-phase electrical systems. It provides comprehensive protection against over/under voltage, phase failure, phase reversal, and unbalance. With a user-friendly interface and panel mount design, it’s ideal for industrial applications requiring reliable system safety and performance monitoring.
Key Features:
- 3 Line – 3 Digit Display for Easy to Use and Understand 3 Phase Value
- 3 Phase 3 Wire / 4 Wire Selectable
- Display 3 Phase Voltage (Ph-Ph, Ph-N), 3 Phase Ampere & Frequency
- Programmable Tripping Parameter
- Single Instrument works for Both VAF Monitoring and Protection Relay
- Programmable Relay 1 Relay 2 C/O
- Fail Safe and Non Fail-Safe Mode
Specifications
| INPUT: | |
| Voltage AC | |
| Direct Voltage AC | 30 to 300V (L - N) 50 to 520V (L - L) |
| Burden | < 0.2VA |
| Current AC | |
| Primary CT Ratio | 5 to 6000 Amp selectable |
| Secondary Current AC | 0.1 to 5 Amp |
| Burden | < 0.2VA |
| Overload | Up to 6A continuous |
| Frequency | 45.0 to 65.0 Hz |
| DISPLAY AND KEYS: | |
| Display | 3 Digit, 3 Line 7 Seg 0.56”, RED LED |
| Keys | Scroll, SET, RST, INC, DEC |
| DIMENSION: | |
| Size (mm) | 96 (H) X 96 (W) X 54 (D) mm |
| Panel Cutout (mm) | 92 (H) X 92 (W) mm |
| Network Selection | 3 Phase - 4 Wire,3 Phase - 3 Wire |
| TRIP SETTING: | |
| Under Current | 0.00 to CTR |
| Over Current | 0.00 to CTR |
| Under Voltage | 50 to 520V For 3Ø - 3W 30 to 300V For 3Ø - 4W |
| Over Voltage | 50 to 550V For 3Ø - 3W 30 to 330V For 3Ø - 4W |
| Over / Under Frequency | 45.0 to 65.0 Hz |
| Short Circuit | 1 - 9 Scale |
| Lock Rotor Point | 0.5 to 9.0 Scale |
| Unbalance | 5 - 60% |
| TIME PARAMETER: | |
| Power On Delay | 0 to 99 Sec |
| Initial Time Delay | 0 to 99 Sec |
| Trip Delay Time (Voltage, Current, Frequency, SSP, Unbalance) | 0 to 999 Sec |
| Scrolling Time | 1 to 99 Sec |
| Reset Time | 0 to 99 Sec |
| OUTPUT SPECIFICATION: | |
| Relay | 2 Nos |
| Relay Type | 1st Relay (NO - C - NC) 2nd Relay (NO - C) |
| Rating | 1st Relay 10Amp, 230V AC (Resistive Load) 2nd Relay 5 Amp (With Simultaneous Actuation) |
| AUXILIARY SUPPLY: | |
| Supply Voltage | 100 to 270V AC, 50Hz |
| Power Consumption | 4VA @ 230 AC MAX |
| ENVIRONMENTAL CONDITION: | |
| Working Temperature | 0 to 55°C |
| Storage Temperature | 0 to 55°C |
| Relative Humidity | 95 % RH Non-Condensing |
| Protection Level (As Per request) | IP-65 (Front side as per IS/IEC 60529: 2001) |
Application
- Electrical Control Panel
- Submersible Pump
- Road Construction Panel
- MCC Panel
- Industrial Chiller and HV AC System
- D.G. Set



