216VC62A HESG324442R112/F 丨ABB

INTRODUCTION

These Operating Instructions apply to the digital generator protection REG 216, REG 216 Compact and to the digital control unit REC 216. In these instructions, the designation RE. 216 is used to refer to both types.

Application of the protection system

A number of different protection functions are provided in the software permanently stored within the RE. 216 system. The functions required to protect a specific plant can be individually selected, activated and set. A particular protection function may be used several times in different protection schemes. How the signals are to be processed by the protection for the plant in question such as the assignment of tripping, signalling and logic signals to the various inputs and outputs is also determined by appropriately configuring the software.

The system hardware is modular in structure. The number of electronic devices and I/O units actually installed, for example, to increase the number of protection functions or for purposes of redundancy, can vary according to the requirements of the par ticular plant.

Because of its modular design and the possibility of selecting protection and other functions by configuring the software, the generator protection REG 216 can be adapted for the protection of small, medium and large generators as well as large motors, power transformers and feeders, while the control unit REC 216 can perform data acquisition and control and supervision functions in medium and high-voltage substations.

Other relevant documents

Each RE. 216 protection system is engineered to fulfil the par ticular requirements of the plant concerned. A specific set of diagrams is provided for each installation, which defines the system with respect to the electronic devices and I/O units in stalled, their locations and the internal wiring.

The set of plant diagrams includes:

single-line diagram of the protection: complete representation of the plant showing the c.t. and v.t. connections to the protection. standard cable connections: block diagram showing the protection equipment cabling (electronic equipment racks to I/O units). protection cubicle layout: installation and locations of the electronic equipment and I/O units. electronic rack layout: equipment locations within a rack. measurement circuits (three-phase plant diagram): connec tion of the c.t's and v.t's to the protection. auxiliary supply: external connection and internal distribution of the auxiliary d.c. voltage supply. I/O signals: external connection and internal wiring of the tripping and signalling outputs and the external input signals.

General instructions

The auxiliary supply is switched off by means of a switch on the auxiliary d.c. supply units 216NG61, resp. 216NG62 or 216NG63. The following must be noted in this respect:

Every electronic equipment rack is equipped with its own auxiliary power supply unit. Either one or a maximum of two redundant 216NG6. auxiliary d.c. supply units can be installed in an equipment rack. Where two redundant auxiliary d.c. supply units are fitted, both units must be switched off.

Any work carried out on the protection such as internal adjust ments, inserting soldered jumpers, wiring, connections etc., may only be performed by suitably qualified personnel.

In addition to these instructions, all applicable local regulations governing work and safety must be strictly observed when in stalling, wiring and commissioning the protection.

Modifications and repairs to the electronic units or software changes may not be performed by the user. No liability will be accepted and any warranty becomes invalid in the case of im proper interference or tampering with the protection equipment. Defective units must be returned to ABB for repair (see also Section 7.)

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