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臺(tái)灣標(biāo)準(zhǔn)電機(jī)SEW儀器儀表--1825 LP Loop Testers

1825 LP Loop Testers

FEATURES

Measures Earth Resistance without the need for poles in the ground or external measuring wires.
Displays voltage without current (V at 0A).
Display voltage as if 16A flows between Line and Neutral (V at 16A).
Loop test for L-E.
PSC between L-N.
Single One Smart push button operation; ON, Scroll through results and menus.
Check wiring integrity (LEDs).
Auto-off/auto-ranging (software range).
Microprocessor controlled.
Combined Prospective Short circuit Current, Loop and Earth Tester.
Dispaly can be customized for large orders.
CAT III 300V.

The 1825 LP is an instrument that displays the main system voltage (V at 0A) of the power utility and calculates the volt drop between Line and Neutral as if 16A was flowing between Line to Neutral.

1825 LP dispalys the system voltage minus the voltage losses into the Line and Neutral impedances (losses due to the current circulating into theses impedances).

The result of this dropped voltage is displayed as if you had a 16A load (V at 16AO. This instrument is useful for fault-finding or commissioning of electrical installations.

This new instrument uses a three wire unique principle of operation. 1825 LP displays the Loop Impedance between Line and Earth (Z L + Z E) = ZL-E and Prospective Short Circuit between Line and Neutral.

SPECIFICATIONS

Loop Impedance Range L-E	0.03 Ohm ~ 2000 Ohm (Software Ctrl)
Test Currents In Each Loop	11.76A at 230V/50Hz
Voltage Measurement L-E	50 to 280V AC (Sine)
Load Current for Volt Drop (L-E)	16A (Calculation)
Neutral Wire Resistance	(Not available, see 1826 NA)
Line Wire Resistance & transformer Windings	(Not available, see 1826 NA)
PSC Current (L-N) Max	6kA at 230Vac supply
PSC Current (L-E) Max	(Not available, see 1826 NA)
Operating Voltage	230V +/- 20 at 50Hz Sine
TYPICAL ACCURACY
Loop Impedance	5%rdg+/-2dgt
PSC Current	12%rdg+/-5dgt
Voltage	3%rdg+/-1dgt
Operating-Temperature-Humidity	-10 degree C to +40 degree C 80% max. relative humidity
Dimensions	170(L) x 165(W) x 92(D)mm
Weight	Appox. 970g (battery is included)
Power Source	1.5V (AA) x 8 batteries
Accessories	Test leads (AL-34)
	Shoulder belt (BET-1800)
	Instruction manual, batteries

特點(diǎn)

● 微處理器系統(tǒng)控制設(shè)計(jì)。
● 使用16字X2(行)的液晶顯示器。
● 自動(dòng)換檔功能。
● 自動(dòng)關(guān)機(jī)功能。
● 可以檢查線的狀況(LEDs指示)。
● 可作 L-E 的迴路測(cè)試
L-N的預(yù)期短路電流
L-N的電壓量測(cè)
● 只需使用一個(gè)測(cè)試按鍵，即可進(jìn)行各項(xiàng)功能檢測(cè)。
●
CAT III 300V

規(guī) 格 (23°C±5°C ＜80%R.H.)

迴路阻抗量測(cè)範(fàn)圍(L-E)	0.03-2000Ω(軟體控制)
測(cè)試迴路電流	11.76A at 230V / 50Hz
量測(cè)電壓	50 to 280V AC
接地電阻	0.01-2000Ω(軟體控制)
預(yù)期短路電流	6kA at 230Vac
操作電壓	230V±20V at 50Hz
迴路阻抗準(zhǔn)確度	±5%讀值±2位數(shù)
預(yù)期短路電壓	±12%讀值±5位數(shù)
操作電壓準(zhǔn)確度	±3%讀值±1位數(shù)
操作溫濕度	-10oC-40oC 80%Z大相對(duì)濕度
外形尺寸	170(長(zhǎng))×165(寬)×92(高)mm
重量(含電池)	約970克
使用電池	1.5V(AA)×8(顆)