中文版
Description
8237-1246 ProTech-GII overspeed safety device
Product Description
Product 8237-1246 is a speed detection system device from WOODWARD. Here are some detailed features of the product:
Main specifications and functions:
High frequency output frequency: 60kHz.
Size: 251*4563.
Operating voltage: 320V.
The equipment is suitable for PLC operating system under normal temperature environment, and has the characteristics of overspeed detection.
Overspeed detection mechanism:
8237-1246 Overspeed detection system device is a high-performance overspeed detection device, which can accurately detect the overspeed state of the equipment, and send corresponding signals or commands to ensure the safe operation of the equipment.
Microprocessor detection:
The speed sensor input in each module uses a special MPU (microprocessor) open-wire detection circuit to verify that the MPU is properly connected before the turbine runs.
Special speed loss detection logic is used to verify MPU function during turbine operation.
Automatic overspeed test program:
Optionally, the system can be configured to perform periodic overspeed tests on each module and record and report the test results.
In the test program, each module uses an internal frequency generator to simulate the overspeed situation and thus complete its test sequence.
Resistance to sulfur pollution:
The system uses a special conformal coating material, which has good long-term protection against H2S and sulfur dioxide gases in the international standard IEC 721-3-3 1994 environmental class 3C2.
Other features:
There are also other protection features such as acceleration detection (as shown in the 8200-1302 model) to protect the turbine from high acceleration events.
8237-1278
Product parameter
| Dimensions | 330 x 486 x 153 mm |
| Enclosure Type | IP56 |
| Features | Vibration Resistance 0.04 G2/Hz, 1.04 Grms, 10 to 500 Hz |
| High Voltage Input | 90–264 Vac/47–63 Hz or 100–150 Vdc @ 30 W per module |
| Keypad/Display | 4.2 inch displays (3) |
| Nominal High Output Voltage | 115 Vac / 240 Vac / 125 Vdc |
| Nominal Low Output Voltage | 24 Vdc |
| Operating Temperature | –4 to +140 °F |
| Storage Temperature | –4 to +158 °F |
| Weight | Less than 27 pounds |
Application field
Model 8237-1246 is part of the Woodward ProTech-GII Series. It is an over-speed detection system that configures to work with multiple types of turbines. It can safely shut down hydro, steam, and gas turbines if it senses they are overaccelerating. In addition to acceleration detection, it also has MPU detection. Model 8237-1246 is also resistant to sulfur and H2S and SO2 gases. It has a triple modular design, making it easy to replace one part with the product in operation.
Additional specifications for this safety detection module include;
- Three independent non voted trip relay outputs.
- 4-20 mA speed readouts.
- Low voltage and high voltage power input.
- 2 out of 3 voted architecture.
Model 8237-1246 can also be configured to perform routine testing. This will test each individual module. It should be stored in temperatures from -4 to 158 degrees Fahrenheit and can be operated in temperatures from -4 to 140 degrees Fahrenheit. It has a keypad display of 4.2 inches. Model 8237-1246 weighs less than 27 pounds and can be installed in a standard cabinet.
Please contact Sunny sales@xiongbagk.cn for the best price.
➱ sales manager: Sunny
➱ email mailto: sales@xiongbagk.cn
➱ Skype/WeChat: 18059884797
➱ phone/Whatsapp: + 86 18059884797
➱ QQ: 3095989363
➱ Website:www.sauldcs.com
