• Lightweight and portable • 100-Hz test
frequency • 30-V output voltage
Designed for testing in the laboratory, shop or
substation, Model CB-100 is a self-contained instrument that accurately measures
insulation characteristics. Model CB-100 tests even in hostile environments
where nearby excited devices may prevent meaningful measurements. Capacitance
and dissipation factor read out directly from the instrument – no calculation is
required. Unit tests complex insulating systems without changing
leads.
供电方式:六节“AA”碱性电池 电池寿命:室外使用12小时 励磁电流范围:0-100mA,四位分辨率 变比范围:0.8-20000,
5位分辨率 电流(rms)精度:±(2%读数+1位) 变比精度:0.1%
(0.8 to 2000) 0.15% (2001 to 4000) 0.25% (4001 to
20,000) 全屏显示:LCD模式,可调背景灯光,温度范围 变压器绕组相位关系:ANSI
C57.12.70-1978 安全/电磁兼容性:满足IEC-1010-1, CE and ASTM
D999.75要求 操作温度:-20°C-50°C 保护装置:高压短路保护以及浪涌电压保护等 尺寸:240X115X50mm 重量:870g.(1.3kg包括测量导线)
Megger
TTR25 Hand-held Transformer Turns Ratio Tester
• Fully automatic; fast; easy-to-use; robust;
lightweight • Battery powered • Tests turns ratio, excitation current,
and polarity • Simple, one-button operation • Quick-start guide on front
panel • Operator-selectable languages
The Megger TTR25 is an automatic hand-held battery
operated transformer turns ratio test set.
It is used to measure the turns ratio, excitation
current and polarity of windings in single- and three-phase distribution and
power transformers (tested phase by phase), potential & current
transformers, and tapped transformers.
The unique design of the TTR25 allows the user to
operate the test set while holding it in one hand. It effectively eliminates the
user from having to kneel or bend down to operate the instrument and speeds up
testing time.
Realizing the extreme environments in which the
TTR25 must operate, special attention has been paid to making it extra rugged,
with a high impact, shock resistant case, yet incredibly lightweight at a mere
870 g (1.9 lbs).
Battery powered with power-saving and shutdown function
Alphanumeric keyboard
RS232 for data transfer and printing
Stores 200 test results and 100 user-defined transformer test settings
The latest TTR available from Megger is the TTR100, a handheld, robust, lightweight and battery operated instrument. This TTR will complement several existing Megger transformer test products and will offer functions, such as winding resistance and polarity. These functions, as well as the phase angle measurement function, can be switched off when not required. With a turn ratio of 20,000:1, the TTR100 offers the highest turns ratio accuracy in the industry of 0.1%. The TTR100 features special software capabilities.
The TTR100 is used to perform final test and calibration of transformers in the manufacturing process, such as a QA or Test Department. Using the new TTR100 in this environment will improve the productivity of such QA testing, as well as efficiently collect and store large amounts of data, which can be uploaded to a PC spreadsheet, or data base program.
Megger
TDR900 Hand-held Time Domain Reflectometer/Cable Length
Meter
Full autoranging for measuring the length of
power, telephony, CATV and LAN cables, provides distance to an open or
short.
Extra large, high resolution backlit LCD.
Automatic output impedance control of 25, 50, 75,
100, 125 or 150 ohms.
User-friendly menu on screen operation.
Cable length calibration function.
Internal library of 39 standard cable
types.
The Megger TDR900 is an advanced instrument capable
of measuring cable lengths and finding distance to an open or a short using Time
Domain Reflectometry. It offers exceptional features and a range capability
normally associated with far more expensive instruments. The measurement range
spans from 15 feet (5 m) to 10,000 feet (3 km) with a minimum resolution of 20
inches (50 cm).
The TDR900 can be used for any cable consisting of
at least two insulated metallic elements, one of which may be the sheath or
shield of the cable. The Meter has automatic internal matching networks to allow
testing of 25Ω, 50Ω, 75Ω, 100Ω, 125Ω, or 150Ω cables. (These correspond to
power, telephony, CATV, and LAN cables.)
The Meter can be closely matched to the cable under
test using the menu selection keys. The propagation velocity value can be
similarly adjusted to match the cable under test; thus ensuring an accurate
distance measurement.
The other user adjustable setting is changing the
distance measurement units (feet or meters). The Meter is housed in a rugged
ABS enclosure which is dust and weatherproof to IP 42. The unit also comes with
a soft carrying case and an alligator clip adapter. It is powered by 4 AA (NEDA
15A or NR 6) batteries, which are stored in a compartment on the back of the
Meter. The batteries are held in a carrier for quick and easy
replacement.
• Simple operation • Warble tone generator •
Velocity factor from 0.30 to 0.99 • Range to 10,000 ft (3 km) • Tough ABS
case • IP54 environmental protection • Carry case and test leads
included
The MEGGER QualiFyr TDR500 cable fault locator
breaks new ground as a cost-effective, high specification hand-held Time Domain
Reflectometer for locating faults on metallic cables. Designed for the field
engineer requiring a low cost solution to field testing, the QualiFyr TDR500
offers all the benefits of MEGGER quality and reliability in an affordable
package.
四、技术参数 接地电阻范围2
分辨率 精确度1 0.025 – 0.25Ω 0.002Ω ± 1.5% ± 0.05Ω 0.25
– 9.999Ω 0.02Ω ± 1.5% ± 0.1Ω 10 – 99.99Ω 0.04Ω ± 2.0% ±
0.3Ω 100 – 199.9Ω 0.4Ω ± 3.0% ± 1.0Ω 200 – 400Ω 2Ω ±
5.0% ± 5Ω 400 – 600Ω 5Ω ± 10% ± 10Ω 600 – 1500Ω
20Ω ± 20% 1无电感的, 外场 <50 A/m, 外部电场 <1 V/m, 导线都在夹子中 2 电阻测试频率
3.333KHz 警告范围 分辨率 高警告 0 – 1550Ω
1Ω 低警告 0 – 1550Ω 1Ω 泄露电流范围3 分辨率
精确度 0.200 – 1.000 mA 0.001 mA ± 2.0% ± 0.05 mA 1.00 – 10.00
mA 0.01 mA ± 2.0% ± 0.03 mA 10.0 – 100.0 mA 0.1 mA ± 2.0% ± 0.3
mA 100 – 1000 mA 1 mA ± 2.0% ± 3 mA 0.20 – 35 A 0.01 A
± 2.0% ± 0.03 A 3 自动选择量程, 50/60Hz, 真 RMS 振幅因数<3.5 导线最大尺寸： 35mm Ø
电池类型： 9V IEC 6 LR61碱性 显示方式： 4 位数 9999 色 LCD显示屏 量程选择：自动量程选择 过载显示：
OL 电量消费： 40 mA 电池使用寿命：测量3000次 电源自动关断： 5 分钟 样本时间： 0.5 秒 操作温度： 0 到
50ºC 储存温度： -20ºC 到 60ºC 操作湿度： 小于85% RH 储存湿度： 小于 75% RH 尺寸： 276 L X
100 W X 47 H (mm) 重量： 750g
Megger
DET20c Down Loading Ground Resistance Clamp
Testers
Large jaw opening
Measures Ground Resistance from 25 mohm to
1550 ohms
Measures Ground Leakage current from 0.2 mA
to 35 A
Automatic self calibration
Auto ranging
High and low alarms
Large memory
Download to Megger Download
Manager
The Earth Resistance Clamp meters are particularly
suitable for measuring earth resistance in various installations such as
buildings, pylons and RF transmitter sites. In addition, they can be used for
the inspection and verification of lightening protection systems.
Measures Ground Resistance from 25 mohm to 1550
ohms
Measures Ground Leakage current from 0.2 mA to 35
A
Automatic self calibration
Auto ranging
High and low alarms
The Megger DET10C Earth Resistance Clamp meter is
particularly suitable for measuring earth resistance in various installations
such as buildings, pylons and RF transmitter sites.
In addition, they can be used for the inspection
and verification of lightening protection systems.
L1070 AND L1071 PORTABLE LOCATORS L1070 Portable Locator
Multiple frequencies
Transmits AF or RF signals or both simultaneously
Peak and null detection
Passive 60 Hz
Measures current flow in buried conductors
Transmitter variable output power
levels
Capable of locating long or short ranges, inductive
or conductive, active or passive, the L1070 delivers quick and accurate results
with a user-friendly interface. A special design feature on the L1070 allows the
user to select and compare receiver information on two
frequencies simultaneously, without having to return to the transmitter. The
L1070 features push-button depth measurements up to 15 feet to quickly identify
service depths prior to digging. A passive 60 Hz detection services as an
excellent safety feature for identifying live underground primary and secondary
utility cables. An optional ground return probe allows ground fault detection on
unshielded electric services or sheath faults on telephone services through the
technique of voltage gradient.
The L1050 Portable Locator is a one-piece design
that is lightweight and highly accurate. Operating the receiver at multiple
frequencies optimizes performance for the specific needs of the user with
accurate long or short range locates. The flexibility of the unit allows high
power operation at low frequency to solve the difficult multi-point ground
utility locating problem. A key operational issue of the L10 is the superior
filtering of the receiver which picks up the transmitted signal easily at wait
height. Operators no longer have to bend at awkward
angles.
三、技术参数 电源 发射器： 240 Vac, 50
Hz 接收器： 9伏电池供电，连续使用40小时 输出电压： 0－ 50 V
rms 输出电流： 根据负荷情况 0 to 2 A rms 输出频率： 20
Hz, ±2% 故障阻抗： 50 V电压下 1 － 399
kW 电桥精度： ±10% 线路电容 0.01－ 11.1 µF; 电桥精度：
±20% 显 示
发射器： 电压、电流三位半数字显示 精度： ±5% 接收器： 三位半数字显示 使用温度：
0－40° C 重量： 发射器 15.9 kg 接收器 0.3
kg
Battery Ground Fault Tracer Battery Test
Equipment
Ground faults in ungrounded dc battery systems
easily located
Operates in high electrical noise environment
Simplifies fault tracing by identifying fault
characteristic (resistive and capacitive) magnitudes
The Battery Ground-Fault Tracer is an economical,
manually-balanced instrument that identifies, tracks and locates ground faults
in ungrounded dc battery systems – on-line. It is particularly effective in a
high electrical noise environments, as the strength of the test current can be
adjusted.
The Battery Ground-Fault Tracer accelerates fault
location by eliminating trial-and-error procedures and because faults can be
located without going off-line. It is particularly useful in any industry where
supply of power for operating measurement, communication and control equipment
is critical.
