NAPF標準純電阻雷電高壓脈沖沖擊電壓分壓器

NAPF standard pure resistance lightning high voltage pulse impulse voltage divider

設備別名

純電阻雷電脈沖分壓器，高壓脈沖沖擊分壓器，脈沖電壓分壓器，純電阻脈沖分壓器，標準純電阻分壓器，雷電脈沖分壓器，標準沖擊電壓分壓器，高壓脈沖分壓器，標準純電阻雷電高壓脈沖沖擊電壓分壓器，無感分壓器

功能概述

本項目設備高壓脈沖分壓器, 采集高頻以及工頻的電壓信號，主要用于雷電波測量、電力系統過電壓（操作過電壓、鐵磁諧振過電壓、串聯諧振過電壓等）以及系統工頻電壓。

本高壓脈沖分壓器將作為過電壓在線監測系統的前端一次元件，需提供相關衰減器并通過屏蔽電纜與過電壓在線監測系統相連，以實現系統過電壓在線監視。

1. 一次高電壓側

a) 一次高電壓側安裝方式:從高壓電網母線接入高壓避雷器的高壓側并與之高壓側并聯接入分壓器的高壓側即完成了一次高電壓側的安裝。分壓器為單相的，分A、B、C相，單相直接連接。

b) 能采集高頻以及工頻的電壓信號。

2. 二次測量監測側：

a) 二次監測側接線方式：供方出廠時配套好了分壓器的測量輸出接口的接插件，供方應當配有輸入衰減器接口的接插件，中間就是連接上需方的測量電纜信號線和供方的衰減器就構成通了測量回路了。中間連接的測量電纜信號線一定要是鎧裝阻燃帶屏蔽層的測量電纜信號線：同軸的75-5-1或者75-5-2的射頻屏蔽電纜，抗*力強。分壓器的二次監測側輸出端口的接插件：是SL16的接插件同軸型。

b)分壓器二次側的測量電壓輸出為500V，輸入至數據采集機構的電壓是10V，需要加裝緩沖器（衰減器）。

c) 二次輸出范圍：依據分壓比的比率大小而定。比率大電壓低，比率小電壓高。

3. 雷電高壓脈沖分壓器的工作原理：

耦合的脈沖的電流信號。

主要參數

1. 高壓脈沖分壓器參數

額定電壓： 200kV（0～200kV）一次高電壓側

額定電容： 1000pF

電容節數： 1節

電阻和電感：0～30Ω,0～20uH

每節電容： 1000pF（MWF200kV～1000pF脈沖電容器）

方波響應： 部分響應時間小于100ns，過沖小于10%

分 壓 比： 400：1

二次側的測量端口輸出電壓：500V（0～500V）

分壓比不確定度(測量精度)： 小于1%

安裝型式：室內或者柜內安裝要求，合成硅橡膠套管絕緣外殼方式。

*掛在10kV電網上運行，需滿足以下波形的監測：

A.標準雷電沖擊全波電壓波形

波頭時間:1.2±30%μs

波尾時間:50±20%μs

過沖：小于5%

效率：不低于90%

±1.2/50μs標準雷電沖擊電壓全波，效率大于90%。

B.標準雷電沖擊截波電壓波形

波頭時間:1.2±30%μs

過沖：小于5%

截斷時間:2~6μs，電子時延控制

效率：不低于90%

采用截斷裝置可產生截斷時間2~6μs的雷電截波，截波分散性小于100ns。

C．標準操作沖擊全波電壓波形

波頭時間:250±20%μs

波尾時間:2500±60%μs

效率：不低于80%

±250/2500μs標準操作沖擊電壓波，效率大于80%。

D. 產生陡度大于2500kV/μs的陡波沖擊波形

2. 衰減器（緩沖器）參數

500V / 10V（輸入/輸出）

分壓比：50:1

衰減器內為分壓電阻10k歐姆，防止電壓過高，可對接入的監測儀器進行保護

衰減器的輸入輸出端口的接插件：都是Q9的接插件。同軸的。

同軸連接接插件和同軸屏蔽測量電纜的工頻交流耐壓和雷電脈沖沖擊耐壓的絕緣水平：≤4kV。

設備尺寸

外形尺寸：900Hx300300L (mm)，單重：15kg。

安裝尺寸：900Hx250250L (mm)

Also name

Pure resistance lightning pulse divider, high voltage pulse impulse divider, pulse voltage divider, pure resistance pulse voltage divider, the standard pure resistor divider, lightning pulse voltage divider, the standard impact voltage divider, high voltage pulse Voltage divider, standard pure resistance lightning high voltage pulse impulse voltage divider

Functional overview

This equipment is equipped with high voltage pulse voltage divider, collecting high frequency and power frequency voltage signal, mainly used for lightning wave measurement, power system overvoltage (operating over voltage, ferromagnetic resonance overvoltage, series resonant overvoltage, etc.) and the system Frequency voltage.

The high voltage pulse divider will serve as a front-end component of the overvoltage on-line monitoring system, providing the relevant attenuator and connected to the overvoltage on-line monitoring system via a dedicated shielded cable for system overvoltage monitoring.

1. a high voltage side

A) a high voltage side of the installation: from the high voltage power grid bus access to the high voltage side of the high voltage arrester and with the high side of the high voltage side of the voltage divider to complete a high voltage side of the installation. The voltage divider is single phase, divided into A, B, C phase, single phase direct connection.

B) can collect high frequency and frequency of the voltage signal.

2. Secondary, measurement monitoring side:

A) secondary monitoring side wiring: the supplier is equipped with a good voltage divider measurement output interface connector, the supplier should be equipped with input attenuator interface connector, the middle is connected to the demand side of the measurement cable signal The attenuator of the line and the supplier forms the measurement loop. Intermediate connection of the measurement cable signal line must be armored flame retardant tape with the measurement cable signal line: coaxial 75-5-1 or 75-5-2 RF shielding cable. Anti-interference ability of the best. Secondary regulator side of the voltage divider Output port connector: Yes SL16 connector. Coaxial.

B) The voltage output of the secondary side of the voltage divider is 500V, and the voltage input to the data acquisition mechanism is 10V. The buffer (attenuator) needs to be installed.

C) Secondary output range: depending on the ratio of the partial pressure ratio. Ratio of large voltage is low, the ratio of small voltage high.

3. lightning high voltage pulse divider works:

Coupled pulse current signal.

Main technical data

1. High voltage pulse divider parameters

Rated voltage: 200kV (0 ~ 200kV) a high voltage side

Rated capacitance: 1000pF

Capacitance section: 1 section

Resistance and inductance: 0 ~ 30Ω, 0 ~ 20uH

Each section capacitance: 1000pF (MWF200kV ~ 1000pF pulse capacitor)

Square wave response: part of the response time is less than 100ns, overshoot less than 10%

Partition ratio: 400: 1

Secondary side of the measurement port Output voltage: 500V (0 ~ 500V)

Partition ratio Uncertainty (measurement accuracy): less than 1%

Installation type: indoor or cabinet installation requirements, synthetic silicone rubber casing insulation shell.

Long-term operation in the 10kV power grid to run, to meet the following waveform monitoring:

A. Standard lightning impulse full-wave voltage waveform

Wave head time: 1.2 ± 30% μs

Tail time: 50 ± 20% μs

Overshoot: less than 5%

Efficiency: no less than 90%

± 1.2 / 50μs standard lightning impulse full-wave, the efficiency is greater than 90%.

B. Standard lightning impulse voltage waveform

Wave head time: 1.2 ± 30% μs

Overshoot: less than 5%

Truncation time: 2 ~ 6μs, electronic delay control

Efficiency: no less than 90%

Using the truncation device can produce truncation time 2 ~ 6μs lightning truncation, truncation dispersion is less than 100ns.

C. Standard operation shock full wave voltage waveform

Wave time: 250 ± 20% μs

Tail time: 2500 ± 60% μs

Efficiency: not less than 80%

± 250 / 2500μs standard operating shock voltage wave, the efficiency is greater than 80%.

D. produces steep wave shock waveforms with steepness greater than 2500 kV / μs

2. attenuator (buffer) parameter

500V / 10V (input / output)

Partition ratio: 50: 1

Attenuator for the voltage divider 10k ohm, to prevent the voltage is too high, can access the monitoring equipment to protect

Attenuator input and output port of the connector: are Q9 connector. Coaxial.

Coaxial connection connector and coaxial shield measurement cable frequency AC voltage and lightning impulse withstand voltage insulation level: ≤ 4kV.

Equipment size

Dimensions: 900Hx300300L (mm), single weight: 15kg.

Installation size: 900Hx250250L (mm)