PKR-2 用于所有类型的 OLTC(电阻器和电抗器类型)的可拆卸诊断,这些 OLTC 是电力变压器的一部分,不包含在电力变压器中。
PKR-2可以诊断由以下公司制造的OLTC设备:华明,MR,ABB,现代重工-保加利亚。
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无需额外的元件(例如电阻器)或了解已检查的OLTC器件的限流电阻器的电阻即可测量参数。对特定OLTC的所有调整都在仪器中自动执行。
反应器型OLTCS可以在PKR-2设备的帮助下以静态模式进行检查。用户用标准成套的手柄以慢动作旋转驱动轴。此时,触点关闭/打开的时刻以度数以及电压和电流值显示在设备的显示屏上。
为了方便直接连接到OLTC的触点,当部分或全部排油打开油箱时,PKR-2配备了特殊的长探头。
无需接触式探头,即可使用带有鳄鱼夹的电缆连接到 OLTC。在这种情况下,应从接触器油箱进行部分或全部排油,或者应从变压器油箱中完全移除OLTC。
该仪器配备了大型传感器彩色图形显示屏,能够以图形或表格形式表示信息。高亮度和对比度使处理图形变得更加容易。
测量结果存储在仪器的非易失性存储器中,也可以传输到PC。
此外,仪器可以通过仪器键盘、传感器显示器或 个人电脑PC 进行控制。最后提到的功能允许您坐在车内使用PC记录图表,这在寒冷季节很重要且舒适。
该仪器符合GOST R 51522.1-2011对A类设备的电磁兼容性要求。
该仪器符合GOST R52319-2005对电气控制和测量仪器以及实验室设备的安全要求。
PKR-2 | PKR-2M | |
OLTC 检查模式 |
可拆卸 |
可拆卸和不可拆卸(DRM 方法)* |
内置电池电源 |
没有 |
可用 (操作时间从2到16小时) |
*不可拆卸的检查模式可以在不打开接触器油箱盖的情况下,使用限流电阻对OLTC进行原位诊断。该模式基于 DRM 方法(动态电阻测量),包括通过绕组测量电流强度,其中 OLTC 接通。
规格 | 值 |
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时间行程测量范围 | 0.01 - 1200 s |
精度 | ±(3 + tx) × 10-4, where tx - measured time interval, sec |
分辨率 | ±0.1 ms |
角运动测量范围 | 2 - 360 º |
精度 | ±0.56 º |
DC直流电流测量范围 | 1 - 4 А |
DC直流电压测量范围 | 1 - 20 V |
DC直流电阻测量范围 | 1 - 20 Ω |
精度 | ±5 % |
每个通道的电阻测量采样频率 | 10 ±0.1 kHz |
最长周期图注册时间 | 20 min |
PC 连接 | USB |
显示器 | TFT彩色图形显示屏,触摸屏 |
待机模式下的最大功耗 | 15 W |
测量模式下的最大功耗 | 210 W |
电源 (电源电压) | 150-242 V AC, 47-63 Hz 150-300 V DC |
操作温度范围, ºС | -20ºС - +40ºС |
环境保护 | IP 64 (device cover closed) IP 20 (device cover open) |
最大测量单元重量 | 5.1 kg |
尺寸 | 360 x 290 x 165 mm |
用户界面和用户手册语言 | English |
质保期 | 3 years |
计量周期 | 3 years |
照片 | 项目,索引 | 应用 |
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Modular probes 7 x 1.7 m (diameter of each: 9 mm) for connection to the contacts of OLTC during the demountable diagnostics. Removable contact tips are in two versions: sharp cone-shaped and in a form of spring-loaded gripper. |
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Select the axis for DP22 transducer fixation to the output shaft:
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For the instrument connection to PC (length – 1.8 m). |
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Non-demountable diagnostic of OLTCs (DRM method) allows to check the technical condition of OLTCs with current-limiting resistors without removing contactor tank cover and oil draining. |
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Manipulating rod is designed for test cables connection from the ground or from the tank cover to the bushings of high-voltage circuit breakers, and to the structural elements of high-voltage disconnecting switches and earthing devices, without the use of ladders or elevated platforms. The manipulating rod is completed with special extension cables. There is a Kelvin clamp with current and potential contacts to connect to the object on one side, and a contact pad on the other side. The device test cable is connected to the contact pad from the ground or a tank cover. Manipulating rod extension cable is made according to a four-wire (Kelvin) scheme with the test current capacity of 100 A in the presence of a good contact.
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照片 | 项目,索引 | 应用 |
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Instrument and accompanying documents: Calibration Certificate, User Manual, Log Book, PC software. |
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带连接器的测试电缆 1 x 8 m。A、B、C 相电缆 3 x 1.5 m,钳口最大可达 25 mm。 |
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The transducer enables to measure the angle and speed of the OLTC shaft rotation. Angle measuring range – 2 - 360º (it is necessary to select an appropriate axis from the additional complete set). |
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To fix the DP22 transducer on the OLTC drive. |
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To fix the magnetic clamp. |
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Axis No. 10 for the OLTC drives of the MZ-4.1; M3.2; M3-4 type. For the drive of PDP-4U type this axis is used together with the bushing. |
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For connecting the instrument to the power supply. Temperature range -15ºС - +45ºС (length – 2 m). |
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For instrument case grounding. Equipped with a ground clamp and screw end cap. Nominal current – 50 А (length – 2 m). |
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Type VP2B-1V-2A (ВП2Б-1В-2А) (2 pcs) to protect the power source. |
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Robust, convenient, wear proof bag for transportation of cables, documentation, and other accessories to PKR-2. The bag is especially useful when the set is carried to an object, so that all the needed accessories are kept together. |
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