GE UR8CH CT/VT Module

Technical Specifications 

General Electric Multilin’s UR-8CH is a CT/VT Module designed for installation in the Universal Relays as a replacement or upgrade in the system. This module provides the relay with 3-1A/5A phase CTs and 1/5A ground CTs. In addition to providing data on the power system, current transformers are able to isolate the system from extreme currents and voltages, prolonging system life and reducing general maintenance costs. Additionally, current transformers provide standardized output voltages, cutting out the need for additional auxiliary protection. Voltage transformers also increase user safety and can reliably measure power system voltages. 

CT/VT Module Protection Features

CT/VT settings can be highly modified to create unique protective schemes, increasing the versatility of the module. These schemes include differential protection, concurrent split-phase protection, and more. The enhanced diagnostics featured on some versions of this module are capable of verifying the integrity of analog signals, employing an advanced algorithm to guarantee reliability. This feature, combined with the health diagnostic capabilities of the UR relay, provides dual-layered evaluation to ensure proper component function.

UR Relay Firmware Compatibility

The UR series of Multilin GE universal relays have an EnerVista lauchpad software package that manages and programs the universal relay. Each relay contains this software, which allows programmable setpoints and setpoints files to be managed by the operators. The firmware can also be accessed through this software to keep up with the latest versions. The firmware version may have implications to the CT/VT modules and the CPUs that are found within a specific relay. For example, over the years new CT/VT modules and new CPUs have been released for function within the broader universal relay Multilin series. With firmware versions of 4.0x and newer, compatibility can be achieved with the hardware. Specifically new CT/VT modules and CPUs must be included together in the same universal relay with the firmware of 4.0x or more recent. On the same token, the older versions of the CPUs and the CT/VT modules are compatible with firmware versions of 3.5x or older. If a UR-8CH CT/VT module is contained in the universal relay, regardless of the specific relay’s function, it is likely that the relay has a firmware version of 3.5x or older since the UR-8CH is an old order code of CT/VT modules. 

FAQ  技术常见问题解答

Q: How many phase CT inputs are available in UR8CH?
A: It provides three phase CT inputs supporting 1A and 5A current transformer ratings.

Q: What ground current input does UR8CH support?
A: It includes one ground CT input with 1A and 5A selectable ratings.

Q: How many VT channels does UR8CH include?
A: It provides four VT channels for voltage acquisition and monitoring.

Q: What voltage range can UR8CH handle?
A: It supports VT secondary inputs with 100V and 120V ratings.

Q: Are your products brand new?
A: Yes. We only supply 100% original and brand-new products. All items are sourced through authorized channels and have never been used or refurbished.

Q: Why can customers buy with confidence?
A: Because every product is backed by our 1-Year Warranty Guarantee of Quality, ensuring reliability, customer satisfaction, and long-term support after delivery.

Q: Do you provide international shipping?
A: Yes. We ship products to customers worldwide using reliable international logistics services such as EMS, DHL, UPS, and FedEx.

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