Use : Gas Insulated Switchgear protection

- Reclosing Function(79)

- OLTC Blocking Function(50(OLTC))

- Self Diagnosis Function

- Circuit Breaker Operation Status Monitering Function

- Circuit Breaker Operation Counting

- Automatic Testing Function

- Setting Value Change by HMI

Product

The product can minimize the setting time which is taken at the time of fault recovery through automatic reclosing performance, in case circuit breaker is opened due to a fault occurs on the power system

Features

1. Reclosing Function(79)	- Operating up to 3 times - After setting one time reclosing by internal manu, it can block    instantaneous trip - After finishing of reclosing, Instantaneous trip will return automatically
2. OLTC Blocking    Function(50(OLTC))	- Send blocking signal to stop operating on load tap changer during    reclosing(79) operates
3. Self Diagnosis Function	- Setting value, Memory(ROM/RAM/Clock), Power source, A/D converter,    In-output circuits
4. Circuit Breaker Operation    Status Monitering    Function	- If they are different each other through comparing reclosing signal and circuit    breaker contacts, alarm signal is output
5. Circuit Breaker Operation    Counting	- The number of Count : up to 9,999
6. Reclosing Automatic     Testing Function	- Test reclosing operation step by step automatically by setting value
7. Setting Value Change    by HMI	- Offered PC interface using the RS-232C port - Change setting values and analyze fault data though HMI which is offered    by manufacturer

Main functions

1. Protection metering function

- Reclosing function(79)

2. Communication

- Front: RS232C

Specification

Control Power Source		DC 90 ~ 140V, 60Hz
Input Contact	Digital	4ea(43RC, CB-b, 50/51, Clear)
Output Contact	Control	2ea('a' contact×1ea, '1a1b' contact×1ea)
	Alarm	5ea('a' contact×5ea)
Communication	Front	RS-232C
Outer Case	Structure	Draw Out Type
	Material	Steel and Aluminium
	Size	172 x 226 x 145 mm