產品簡介

NASGQ數字雙鉗相位伏安表是專為現場測量電壓、電流及相位而設計的一種高精度、低價位、手持式、雙通道輸入測量儀表。NASGQ數字雙鉗相位伏安表可以很方便地在現場測量U-U、I-I及U-I之間的相位，判別感性、容性電路及三相電壓的相序，檢測變壓器的接線組別，測試二次回路和母差保護系統，讀出差動保護各組CT之間的相位關系，檢查電度表的接線正確與否等。采用鉗形電流互感器轉換方式輸入被測電流，因而測量時無需斷開被測線路。測量U1-U2之間相位時，兩輸入回路完全絕緣隔離，因此完全避免了可能出現的誤接線造成的被測線路短路、以致燒毀測量儀表。顯示器采用了高反差液晶顯示屏，字高達25mm，屏幕角度可自由轉換約70°，以獲得*視覺效果。NASGQ數字雙鉗相位伏安表外殼采用工程絕緣材料，另配橡皮防振保護套，安全、可靠。

產品別名

相位表、雙鉗相位表、雙鉗相位伏安表、鉗形相位表、鉗形相位伏安表、數字雙鉗相位表、數字式雙鉗相位表、低壓伏安相位檢測表、手持式數字雙鉗相位伏安表、雙鉗式數字相位表、雙鉗數字式相位表、雙鉗式伏安相位表、雙鉗伏安相位表、數顯雙鉗相位表

產品特性

1、不需拆母線,一鍵全自動測量,精度高,穩定性好,國內技術**

2、量程自動轉換,大屏幕液晶顯示,漢字菜單操作提示,可儲存和打印數據

1、工作條件

??1、環境溫度：（23±5）℃

??2、環境濕度：（45～75）% RH

??3、被測信號波形：正弦波、β=0.02

??4、被測信號頻率：（50±0.2）Hz

??5、被測載流導線在鉗口中的位置：任意

??6、測量相位時被測信號幅值范圍：100～220V、0.5A～1.5

??7、外參比頻率電磁場干擾：應避免

2、 基本誤差極限?

工作誤差

1、額定工作條件

1、環境溫度：（0～40）℃

2、環境濕度：（20～80）% RH

3、被測信號波形：正弦波、β=0.05

4、被測信號頻率：（50±0.5）Hz

5、被測載流導線在鉗口中的位置：任意

6、測量相位時被測信號幅值范圍

測U1-U2相位時：30V～500V

測I1-I2 相位時：10mA～10.00A

測U1-I2或I1-U2相位時：10V～500V、10mA～10.00A

7、外參比頻率電磁場干擾：應避免

2、額定工作誤差極限

在1 所述額定工作條件下，各被測量的額定工作誤差極限不超過相應基本誤差極限的兩倍。

其它技術特性

1、顯示位數：三位半

2、采樣速率：3次/秒

3、電源：單個9V迭層電池、電源電流小于5mA

4、重量

表體：280g

測量鉗：2×200g

Product introduction

NASGQ?series Digital Display Clamp-on Phase Meter is special designed for voltage, current and phase tests, itisinhigh-precision, low price,portable hand-held, dual-channel input measuring. It\'s easy to measure the phase between U-U, I-I and U-I, identify the inductive circuit ,capacitive circuit andthephasesequence of three-phasevoltage, detect the wiring group of transformer, test the secondary circuit and bus differential protection system, display the phase relationship among the CT groupsofadifferential protectionsystem, and check if the wire of electric meter was correctly connected. When testing customers do not need cut off the tested current which input by slipcorecurrenttransformer. When measuring thephase between U1 and U2, the two input circuit loop are completely isolated, so the possible miss connection is absolutely avoided, which may result inshortcircuitand may even burn the meter. Themonitor of the device is high-contrast LCD screen, and the character in which could be as high as 25mm, and can be freely rotatedapproximately70°, which helps to obtain the best visual effects.

The shell of the device is made of engineering insulating material, together with arubber–madeanti-vibrationprotection kits for safety andreliability.

Also called?name

Phase meter, clamp phase meter, digital clamp phase meter

The Characteristics of the products

1. Withstand Voltage

Parts between voltage input terminal and meter shell, parts between the iron core of the clamp-current transformerandsecondarywindings can stand1000V/50Hz. Parts between the two voltage input terminals can stand Sinusoidal AC Voltage 500V/50Hz for 1min when testing.

2. Insulation Resistance

Between meter circuit and meter shell, between the two voltage input terminals:≥10MΩ

The parameters of the products

1. Intrinsic Error

1.1 Reference Operating Conditions

(1) Temperature: (23±5)℃

(2) Humidity: (45~75)% RH

(3) Wave forms of measured signal: sine wave β=0.02

(4) Frequency of measured signal: (50±0.2)Hz

(5) Position of Measured current carrying conductor in the nipper jaw: Optional position

(6) Amplitude range of measured signal when measuring phase: 100~220V, 0.5A~1.5A

(7) External reference frequency electromagnetic interference: Should be avoided

1.2 The limits of intrinsic error

2. Operating error

2.1 Rated Operating Conditions

(1) Temperature (0~40)℃

(2) Humidity: (20~80)% RH

(3) Wave forms of measured signal: sine wave β=0.05

(4) Frequency of measured signal: (50±0.5)Hz

(5) Position of Measured current carrying conductor in the nipper jaw: Optional position.

(6) Amplitude range of measured signal when measuring phase,

????Phase U1-U2: 30V~500V

????Phase I1-I2: 10mA~10.00A

????Phase U1-I2 or I1-U2: 10V~500V, 10mA~10.00A

(7) External reference frequency electromagnetic interference: should be avoided

2.2 Limits of rated operating error

???Under the conditions described in 1, the limits of rated operating error will not exceed twice of thelimitsofintrinsic error.

3. Other technical parameters:

(1) Display: three and half digital

(2) Sampling rate: 3 times/ seconds

(3) Power supply: single laminated batteries with 9V, the current of power supply is less than 5 mA.

(4)Dimension:

The size of the shell of meter: 192mm×95mm×55mm

The size of the shell of clamp: 140mm×42mm×20mm

The size of jaws: Φ7mm×9mm

(5)Weight:

The weight of meter: 280g

The weight of clamp: 2×200g

(6)the conditions of storage:

Temperature: -10℃~ 50℃