A Meter Cabinet With a POTENCIA NEGATIVA Alarm and No Paper Trail
Potencia negativa on a three-phase service is a red flag that lands a site in the priority inspection queue. It means the metering is registering negative active power — either the CT wiring is reversed on one or more phases, or someone has done something creative with the connection. The technician dispatched to VERIFICACION PERIODICA finds the Schneider ION8650C with phase A reversed. He normalizes the wiring, logs the ERROR fields, takes three photos, and moves to the next site. What happens to that information afterward depends entirely on whether there's a structured record to receive it.
The ACCIONES_MEDIDAS_ESPECIALES template is the structured record. It captures everything from the initial seal chain — armario, velo, diova, medidor, each with ENC (found) and DEJ (left) fields — through the full metering verification sequence, the CT and PT relationships, the error readings across four variables, and the specific actions performed.
What the Seal Chain and Error Fields Actually Document
The seal chain — four paired fields covering armario, velo, diova, and medidor — is the chain-of-custody record for a metered installation. SELLO_ARMARIO_ENC is the seal number found on the cabinet when the technician arrives. SELLO_ARMARIO_DEJ is what's left when they go. Any break in the chain between visits is evidence of unauthorized access. Any discrepancy between SELLO_MEDIDOR_ENC and the last recorded DEJ value means the meter has been accessed since the previous inspection.
The four ERROR fields — ERROR_1 through ERROR_4 — hold the metrological verification results from the meter's self-diagnostic registers. On Actaris SL7000 and ITRON SL7000 equipment in the field, these registers capture accumulated measurement deviation across the billing period. A pattern of increasing ERROR_1 values across multiple verification visits to the same NIS/NIC combination tells you whether the metering is drifting within tolerance or building toward a meter exchange order.
The RELACION_CT dropdown covers the full range from 5/5 to 2000/5, and RELACION_PT from direct (1) through 138000/115 for transmission-level service connections. Getting these ratios wrong in the record — or not recording them at all — corrupts every calculated consumption figure downstream. The CONSTANTE field captures the meter multiplier that converts register readings to actual kWh, kVARh, and kW delivered. A misrecorded CONSTANTE on a large industrial account is a billing dispute waiting to happen.
When the Varcorder Sits on Site for Two Weeks
MEDICION TEMPORAL CON VARCORDERS is the visit reason that generates the most complex paper trail. The Varcorder goes in on one date, sits for the measurement period, comes back out on another date, and the data gets extracted and re-installed or retired depending on what the analysis shows.
The template handles this with three discrete date fields: visit date, FECHA DE RETIRO DE VARCORDERS, and FECHA DE REINSTALACION DE VARCORDERS. When a FALLA COMUNICACION on a Schneider ION8600C at a Santiago sector site can't be resolved remotely, the Varcorder installation creates a parallel measurement reference. The gap between LECTURA_ACTIVA_ENT recorded on the Varcorder and LECTURA_ACTIVA_KWh on the installed meter register is the measurement discrepancy that the technical report needs to quantify.
ESTADO_SUMINISTRO covers the supply conditions at the point of inspection: SUMINISTRO NORMAL, CONEXIONADO INCORRECTO, SUMINISTRO EN CONEXION DIRECTA, EQUIPO DE MEDIDA AVERIADO, SUMINISTRO CON PT AVERIADO, SUMINISTRO CON CT AVERIADO, NO BAJA UNA O MAS SENALES DE TENSION. These aren't paper descriptions — they're structured data that feed directly into the commercial recovery and normalization workflow. An installation logged as CONEXIONADO INCORRECTO with a documented retroactive consumption adjustment is a defensible commercial audit trail. The same finding on a tally sheet isn't.