AIR-INSULATED VOLTAGE SENSOR

Product catalog summary

Abstract:
The air-insulated voltage sensors are designed based on resistive dividers in compliance with the IEC 61869-11 standard. They serve multiple functions including monitoring, protection, and network quality analysis, and can also act as support insulators. These sensors are suitable for outdoor applications and offer easy installation with BNC or RJ45 connections available in various cable lengths (1m, 2m, 5m, 10m). They maintain accuracy throughout their lifespan.

Voltage Sensor Principle:
The sensors operate on a principle involving resistive or capacitive dividers, transforming high voltage input (Uin) to a normalized output voltage (Uout). The transformation relationship is tailored to specific needs.

Voltage Sensor Linearity:
The sensors exhibit linearity in amplitude and phase as per IEC 61689-11:2017. The linearity range varies with sensor accuracy, and specific sensors are recommended for higher voltage limits.

Installation:
Installation requires the system to be powered off. Sensors should be mounted on a metal bar with a good earth connection, respecting the spacing 'D' according to the rated primary voltage. High voltage connection cables use an M10 metric, and measurement cables should be 1, 2, 5, or 10m with a measurement impedance of 2MΩ/50pF or 10MΩ/50pF. Grounding of the metal mounting structure is essential.

Technical Characteristics (24kV):
Key parameters include a rated primary voltage of 20/√3 kV, insulation level of 24/50/125 kV, and a rated transformation ratio of 10000:1. The accuracy class is 0.5/1/3 & 5P/3P, with a rated frequency of 50/60Hz and a rated burden of 2 MΩ/50 pF or 10 MΩ/50 pF. The sensors undergo various tests including power-frequency withstand voltage and partial discharges.

Standards:
The sensors comply with IEC standards 61869-1 (2007), 61869-6 (2016), and 61869-11 (2017).

Rated Parameters:
Parameters vary with different insulation levels, and each sensor is labeled with its specific characteristics such as accuracy class, operating temperature, transformation ratio, and measurement impedance.

Materials:
The sensors are constructed with brass (nickel plated) fittings, an epoxy resin core, and a silicon rubber housing in RAL 7000 color.

Catalog excerpts

Sensors produced on the basis of resistive dividers, according to the IEC 61869-11 standard. The sensors offer alternatives for monitoring, protecting and analyzing network quality. In addition to functions as a sensor, the sensor performs functions as a support insulator. Outdoor application The sensors provide a BNC or RJ45 type connection with the corresponding cable (1m, 2m, 5m, 10m). Easy utilization and installation. Accuracy over complete lifetime INDISOL . Rua de Pardilhó 7 . 3860-529 Estarreja . Portugal . T +351 234 844 494 . [email protected] . ww

Open the catalog to page 1

VOLTAGE SENSOR PRINCIPLE ݑ Ȱݑְݑ The basic principle of sensors, with diferente accuracy and transformation classes, is based on the IEC 61869-11 standard The sensors are based, according to customer preference, on the resistive or capacitive divider. The sensor has two elements that divide the input signal in a normed output value. The transformation relationship between the high voltage (pݑ Ȱݑְݑ ) and output voltage (۰ݑ Ȱݑܰݑ°ݑ ) is developed according to the needs. VOLTAGE SENSOR LINEARITY Amplitude error [%] according to table 6A.4 IEC61689-11: 2017 The sensors have linearity of their response,...

Open the catalog to page 2

Warning! • Before starting the installation, the system must be turned off. The metal mounting structure must be connect to the ground • The sensors must be mounted on top of a metal bar, using a M12 metric. • It is essential that the bar has a good earth connection. • The spacing “D” between the sensors has to be respected according to the “rated primary voltage” of the sensor. • The high voltage connection cable is connected to the sensor through a M10 metric. • The sensor measurement cables must be 1, 2, 5 ou 10m and the measurement impedance must be 2MΩ/50pF or 10MΩ/50pF. INDISOL . Rua de...

Open the catalog to page 3

RATED PARAMETERS Each sensor is identified with rating plate, where it is possible to see the different characteristics of the sensor. Among the characteristics, we can find, for example, the sensor accuracy class, operating temperature, transformation ratio and measurement impedance. • To obtain the mentioned accuracy class, it is important to respect the measurement impedance as well as not to exceed the sensor operating voltage. • In the example above, we have an example for 24kV. For other insulation levels, the sensors will have the corresponding label. TECHNICAL CHARACTERISTICS (24kV) Rated...

Open the catalog to page 4

MATERIALS Inserts Fittings- brass (nickel plated) Epoxy resin Silicon rubber/RAL 7000 (approx) INDISOL . Rua de Pardilhó 7 . 3860-529 Estarreja . Portugal . T +351 234 844 494 . [email protected] . www.indisol.pt

Open the catalog to page 5

AIR-INSULATED VOLTAGE SENSOR

AIR-INSULATED VOLTAGE SENSOR

Catalog excerpts

All INDISOL S.A. catalogs and technical brochures