Catch hot joints early
50–65% of urban cable faults start at joints/terminations from heat-driven insulation ageing — continuous monitoring flags them before arc-flash or fire.
Philippines · Self-powered wireless thermal monitoring
Self-powered from ≥1 A (or 10-year battery for low-current points), ±0.2 °C, installed live-line. Detect overheating joints and ageing cable terminations early — the mechanism behind substation fires — for condition-based maintenance on Meralco and NGCP-class assets.
Why VTI for the Philippines
50–65% of urban cable faults start at joints/terminations from heat-driven insulation ageing — continuous monitoring flags them before arc-flash or fire.
Wireless, self-powered, live-line clamp-on — ideal for Meralco’s annual miscellaneous-allocation CapEx retrofits on ageing 34.5 kV GIS switchgear.
Energy harvesting from ≥1 A on loaded busbars; 10-year battery option (TS-26B) for low-current points — no maintenance trips across thousands of points.
Compliance & trust
What a Meralco/NGCP due-diligence team should expect — current status shown honestly.
ISO 9001 / CE used to pursue a fast-track approval path for industrial IoT devices; status available on request.
Alignment with PEC (Philippine Electrical Code) installation practice for switchgear-mounted monitoring.
Gateway GW22-D feeds SCADA/HMI via Modbus TCP / RTU & MQTT. (IEC 61850 not a current capability — on roadmap.)
LoRa AS923 with <1% duty cycle and LBT, aligned to NTC free-band rules.
Figures below are taken directly from the VTI-TS-26 and GW22-D datasheets (no representative values).
| Sensor — VTI-TS-26 / TS-26B | Specification |
|---|---|
| Self-powered start current | ≥ 1 A induced load current (world-first at 1 A) — or VTI-TS-26B battery, 10-year life, for points below 1 A |
| Accuracy | ±0.2 °C (within −10 to +65 °C) |
| Measurement range | −40 to +125 °C |
| Operating temperature | −40 to +85 °C · humidity 0–100% |
| Working voltage environment | Up to 500 kV (UHV) |
| Wireless | LoRa AS923 band · EIRP 14–22 dBm · duty cycle <1% · LBT (Listen-Before-Talk) |
| Range | Up to 3 km, unobstructed urban environment |
| Sampling | Adaptive 5–30 min (faster as temperature changes) |
| Mounting | Magnetic straps + stainless-steel ties — live-line, no outage |
| Gateway — GW22-D | Specification |
|---|---|
| Architecture | Receive-only listening hub (does not interfere with the transmission system) |
| Wireless | Dual-band 2.4 GHz (BLE) + LoRa AS923 |
| Capacity | > 1,000 sensors |
| Network & protocols | RJ45 Ethernet 10/100 · Modbus TCP, Modbus RTU (RS485), MQTT → SCADA / HMI / Cloud |
| Power | 220 V AC/DC universal |
| Form factor | 93 × 84 × 24 mm, 200 g, DIN-rail / wall mount · −40 to +85 °C |
Note: data integration is via Modbus TCP / Modbus RTU / MQTT (IEC 61850 is not a current gateway capability). LoRa AS923 frequency plan is configurable per country — confirm the regional sub-band before deployment.
Tell us about your substations — we will send the VTI-TS-26 / GW22-D datasheets and a capability profile for evaluation.
[Philippine distribution / integration partner — to be appointed]