Description
The ENERDIS TRIAD2 T303 (Chauvin Arnoux Energy) is a high-precision, multifunction digital measurement transducer designed for electrical substation distribution panels and heavy industrial power monitoring systems. It samples and processes primary electrical values across single-phase, split-phase, and balanced or unbalanced three-phase (3-wire or 4-wire) utility networks. The T303 sub-model features three independent, programmable analog outputs to convert measured AC parameters directly into standard industrial DC telemetry signals.
Commercial Availability & Procurement
- Condition: Factory Sealed / New Surplus or Refurbished (Tested and certified operational options available)
- Warranty: 12-Month Mechanical and Electrical Functional Warranty
- Availability: In Stock (Global logistics clearance within 24–48 hours)
- Pricing Note: Unit pricing varies based on custom calibration options (\pm20 mA vs. \pm10 V) and high-humidity tropical coating variants. Contact our technical sales desk for a formal, itemized quotation.
Technical Specifications
| Parameter | Value / Specification |
| Brand / Manufacturer | ENERDIS (Chauvin Arnoux Group) |
| Model Code | TRIAD2 T303 (e.g., P01380105 / P01380121) |
| Analog Outputs | 3 independent channels (Configurable for \pm20 mA or \pm10 V) |
| Voltage Input Range | Up to 480 V phase-to-phase direct (Supports external VT scaling up to 1 MV) |
| Current Input Range | 1 A or 5 A nominal (Supports external CT scaling up to 40,000 A) |
| Measurement Accuracy | Class 0.1 adjustable compliance in accordance with IEC 60688 |
| Galvanic Isolation | 4 kV RMS input-to-output and power supply insulation |
| Response Time | Down to 50 ms minimum latency |
| Auxiliary Power Supply | Wide range: 80 to 265 V AC / V DC |
| Operating Frequency | Nominal 50 Hz or 60 Hz systems |
| Mounting Style | DIN Rail or backplate mounting via specialized fixing brackets |
Measured Variables & Telemetry Mapping
The internal digital signal processor (DSP) continuously evaluates the primary inputs to dynamically compute a comprehensive range of electrical variables. Using the configuration software, any three of the following parameters can be assigned directly to the physical analog hardware loops:
- Voltage: Phase-to-neutral (V_{ac}) and phase-to-phase (U_{ac})
- Current: Active AC line phase current (I_{ac})
- Power Factors: Active Power (P), Reactive Power (Q), Apparent Power (S)
- Network Dynamics: Frequency (F), Power Factor (PF), \cos \phi, \tan \phi, phase angles
Transfer Functions
The analog outputs do not require simple 1:1 linear profiles. The TRIAD2 platform allows commissioning engineers to define specific transfer curves to gain better resolution over targeted operating zones:
- Linear: Direct proportional tracking across the span.
- 2 Slopes (Bi-linear): Higher resolution scaling for compressed baseline monitoring with wider thresholds during surges.
- Quadratic: Tailored mapping profiles for specific non-linear industrial loads.
Configuration & Field Integration Constraints
Integrating the TRIAD2 T303 requires adherence to specific interfacing protocols and software constraints to guarantee proper operation:
- Software Setup: System configuration, CT/VT primary ratios, and analog scaling must be executed via the proprietary TRIADJUST2 software utility. Connection to a PC requires a dedicated optical communication head tool (USB E50/150) placed on the front panel interface to isolate the computer from line voltages.
- Network Communications: The unit can simultaneously transmit digital data while pushing analog values. It supports standard Modbus RTU protocol via an RS485 physical layer or via an optional Ethernet gateway conversion block (such as the ELINK IEC61850 module) for substation network integration.
- Environmental Considerations: Standard T303 modules are built for clean switchboard applications. For high-humidity, marine, or corrosive environments, ensure you procure the specific “TROP” (Tropicalized) variant codes (e.g., P01380106) to prevent atmospheric degradation of the internal circuitry.
Field Engineering Note: Always verify phase rotation sequence (L1 \to L2 \to L3) using the live Fresnel diagram display within the TRIADJUST2 diagnostic module during hot commissioning. Incorrect phase sequence wiring will corrupt calculated Active (P) and Reactive (Q) power totals, throwing off the respective analog output loops.
