VT/CT circuit load measuring instrument CVE-33
CB Engineering Co., Ltd.
About This Product
■Summary
During construction of power generation and substations, before connecting VTs and CTs to actual circuits, tests are conducted to confirm the margin of the connected circuits against the secondary and tertiary rated loads of VTs and CTs (circuit load measurement). This measuring instrument is designed to perform these tests safely and easily. This product has been improved from our previous product and can be used with a single-phase AC100V power supply. This was developed in fiscal 2016 through commissioned research by Tohoku Electric Power Co., Inc.'s Kitakami Technology Center.
■Built-in test power supply and voltage/current measuring device
This measuring device has a built-in test power supply and voltage/current measuring device, making it possible to perform burden measurements with just one device. The power supply for this measuring instrument is single-phase AC100V, but it can output three-phase output for measuring VT circuit load, so it can be measured even in environments where there is no three-phase power supply.
■Easy and speedy measurement
Easy operation, just select the type of strain measurement and press the START button. Measurements can be taken in a short time, approximately 3 to 7 seconds. In addition, the load value is automatically converted to the rating and displayed, so you can check the load value immediately after measurement.
■Small and lightweight
Compared to our conventional product (CVE-17A), it is approximately 1/5 the size and 1/4 the weight, making it significantly smaller and lighter.
■Two types of connection terminals
Two types of alligator clips and Y-type crimp terminals are available for connection to the load measurement location. You can choose the one you like according to the terminal shape of the measurement point.
■Safety design
This measuring instrument is designed so that it will not malfunction even if the connecting terminals are short-circuited. In addition, in case of an emergency, the output of the test power supply is equipped with a fuse to prevent overcurrent from flowing to the object being measured.
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Product
VT/CT circuit load measuring instrument CVE-33
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Handling Company
CB Engineering Co., Ltd.
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Categories
1 Models of VT/CT circuit load measuring instrument CVE-33
| Product Image | Part Number | Price (excluding tax) | Burden measurement range CT | Burden measurement range EVT 3rd order | External dimensions/weight | Load measurement range VT | Power supply | Test power supply CT | Test power supply EVT 3rd order | Test power supply VT | Voltage and current measurement accuracy | Voltage and current measurement range CT | Voltage and current measurement range EVT3 | Voltage and current measurement range VT |
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CVE-33 |
Available upon quote |
1~100VA (calculation formula 1/2 mode) 2~200VA (calculation formula 1/1 mode) |
200~2,000VA (rated 190V conversion mode) 67~670VA (rated 110V conversion mode) |
300✕250✕100 (mm) (excluding protrusions) 4.2kg |
0.15~10VA | AC100V ±10% 50/60Hz (single phase) |
Rated phase voltage 1V Rated output current 1000mA Phase/Frequency Single phase 50/60Hz |
Rated phase voltage 10V Rated output current 600mA Phase/Frequency Single phase Single phase 50/60Hz |
Rated phase voltage 63.5V Rated output current 160mA Phase/Frequency Single phase Three phase 50/60Hz |
±1% of Range (VT current) ±1% of F.S (other than VT current) |
Voltage (max) 1V Current (max) 1,000mA |
Voltage (max) 12V Current (max) 600mA |
Voltage (max) 70V Current (maximum) H range 160mA, L range 10A |
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About Company Handling This Product
- Japan