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Bushing-shaped electronic voltage sensor through-the-wall plug-in
electronic voltage sensor
The bushing-shaped electronic type zero-phase integrated electronic
voltage sensor is a new type of voltage sensor for phase-sequence
and zero-sequence voltage protection. This electronic-type voltage
sensor adopts advanced capacitive voltage-dividing technology,
which can accurately collect zero-sequence voltage signals. The
electronic voltage sensor is matched well with the breaker of an
outdoor pole-mounted high-voltage vacuum breaker and switchgear,
and it is widely used in various power distribution systems.
Features
• It detects voltage of zero-sequence and phase-sequence with high
precision, and has stable and reliable operation;
• It adopts the principle of capacitive voltage divider and the
technique of liquid-independent encapsulation;
• It consists of three-phase independent sensors with high-voltage
cables and can be directly connected to the high-voltage conductor
of the main switch.
Technical Parameter
Items | Technical Data | |
Rated Voltage | 10KV | |
Primary input voltage | 10KV/√3 | |
Secondary input voltage | 13 /3V (zero-sequence voltage) | |
Accuracy (zero-sequence voltage) | 3P | |
Secondary input voltage | 6.5 /√3V ( phase-sequence voltage) | |
Accuracy ( phase-sequence voltage) | 0.5P | |
Rated frequency | 50Hz | |
Withstanding voltage (1min power frequency withstanding voltage) | 42KV | |
Lightning impulse withstanding voltage (peak) | 75KV | |
Partial Discharge | ≤ 10 pc 14.4KV | |
Product standard | T/C E S018-2018; GB/T20840. 7 -20 07; DL/T 1155-2012 | |
working environment | Ambient temperature | -25 ℃ ~ + 40 ℃ |
Average daily temperature difference | ≤30℃ | |
Altitude | ≤3000M | |
Relative humidity | ≤60% | |
Maximum wind speed | 34m/s | |
Rated load | 10 MΩ | |
Working life | ≥10 years |
Application
It is used in ring main unit, for accurate measurement, control and protection of LV, MV and HV electrical power systems by dividing input high voltage 10kv/√3 into output voltage 3.25V/√3 for phase sequence and 6.5 V /√3 for zero sequence as signal voltage, which is for background detection.
Dimension
COMPANY OVERVIEW
· Xian Xiwuer Electronic and Info. Co., Ltd is a wholly state-owned company with a registered capital of CNY
101.465 million (exchanged to USD15.85 million), owning total
assets of CNY315 million (traded to USD 49.22 million). It was
established in 1976. Currently, it has about 460 employees, with an
annual sales income of CN280 million (exchanged to USD43.75
million). The company has four production and business bases
covering an area of 43052 square meters, and a construction area of
more than 50000 square meters. The company has 8 persons with
master's degrees, more than 80 engineers with senior technical
titles 12 technicians who have been awarded Experts with
Outstanding Contributions by the Xian municipal government, and 1
expert who has been enjoying a special allowance from the State
Council.
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• High Voltage Film Capacitor;
• High Voltage Resistor;
• Primary and Secondary Integrated Intelligent assembly and components with the function of voltage measurement, current measurement, protection, temperature monitoring, and power supply;
• Medium-High Voltage components/parts/ assembly;
• Surge Protective Device for Power Supply System;
• Chips for lightening devices;
• Zinc Oxide Varistor;Thermistor.
Major Customers: ABB, Schneider, GE, ZTE, XD Electric, XJ Electric, PingGao Electric and etc.
CERTIFICATE