Electric Trip For Gas Stop/Speed Ratio And Control Valve Of Heavy Duty

Electric Trip For Gas Stop/Speed Ratio And Control Valve Of Heavy Duty Gas Turbine

Abstract: Discloses is an electric trip circuit for gas stop/speed ratio and control valve of heavy duty gas turbine, said electric trip circuit comprises: a normally opened solenoid valve of 20FG-1, and a trip relay valve connected with manifold for energized and de-energized for causing dump hydraulic oil from the cylinder without any leakage. Said trip relay valve is a 4-way, 2-position solenoid operated dump valve (20VSR) is a spring biased spool valve, which dump hydraulic oil from the cylinder to drain causing the gas stop/ratio valve to shut close. This solenoid valve is de-energized to trip and energized to reset from the SPEEDTRONIC control panel. It is a spring biased to trip and therefore, protect the turbine during all normal situations as well as for loss of DC power.

Patent Information

Application #

Filing Date

18 March 2020

Publication Number

39/2021

Publication Type

INA

Invention Field

ELECTRICAL

Status

Email

kolkatapatent@Lsdavar.in

Parent Application

Applicants

BHARAT HEAVY ELECTRICALS LIMITED

Regional Office: Regional Operations Division (ROD), Plot No. : 9/1, DJ Block 3rd Floor, Karunamoyee, Salt Lake, Kolkata 700091, West Bengal, Registered Office: BHEL House, Siri Fort, New Delhi-110049, India

Inventors

1. Ravi Jatoth

Switchgear Division, HPEP, Bharat Heavy Electricals Limited, Ramachandrapuram, Hyderabad 502032, Telangana, India

2. Anil Kumar Kulkarni

Switchgear Division, HPEP, Bharat Heavy Electricals Limited, Ramachandrapuram, Hyderabad 502032, Telangana, India

3. Jamesh Abba

Gas Turbines Division, HPEP, Bharat Heavy Electricals Limited Ramachandrapuram, Hyderabad 502032, Telangana, India

Specification

Discloses is an electric trip circuit for gas stop/speed ratio and control valve of heavy duty gas turbine, said electric trip circuit comprises: a normally opened solenoid valve of 20FG-1, and a trip relay valve connected with manifold for energized and de-energized for causing dump hydraulic oil from the cylinder without any leakage. Said trip relay valve is a 4-way, 2-position solenoid operated dump valve (20VSR) is a spring biased spool valve, which dump hydraulic oil from the cylinder to drain causing the gas stop/ratio valve to shut close. This solenoid valve is de-energized to trip and energized to reset from the SPEEDTRONIC control panel. It is a spring biased to trip and therefore, protect the turbine during all normal situations as well as for loss of DC power.

Documents

Application Documents

#	Name	Date
1	202031011730-STATEMENT OF UNDERTAKING (FORM 3) [18-03-2020(online)].pdf	2020-03-18
2	202031011730-PROOF OF RIGHT [18-03-2020(online)].pdf	2020-03-18
3	202031011730-POWER OF AUTHORITY [18-03-2020(online)].pdf	2020-03-18
4	202031011730-FORM 1 [18-03-2020(online)].pdf	2020-03-18
5	202031011730-FIGURE OF ABSTRACT [18-03-2020(online)].pdf	2020-03-18
6	202031011730-DRAWINGS [18-03-2020(online)].pdf	2020-03-18
7	202031011730-DECLARATION OF INVENTORSHIP (FORM 5) [18-03-2020(online)].pdf	2020-03-18
8	202031011730-COMPLETE SPECIFICATION [18-03-2020(online)].pdf	2020-03-18
9	202031011730-FORM 18 [31-08-2020(online)].pdf	2020-08-31
10	202031011730-FER.pdf	2022-07-29
11	202031011730-OTHERS [28-01-2023(online)].pdf	2023-01-28
12	202031011730-FORM-26 [28-01-2023(online)].pdf	2023-01-28
13	202031011730-FORM 3 [28-01-2023(online)].pdf	2023-01-28
14	202031011730-FER_SER_REPLY [28-01-2023(online)].pdf	2023-01-28
15	202031011730-ENDORSEMENT BY INVENTORS [28-01-2023(online)].pdf	2023-01-28
16	202031011730-DRAWING [28-01-2023(online)].pdf	2023-01-28
17	202031011730-CLAIMS [28-01-2023(online)].pdf	2023-01-28
18	202031011730-US(14)-HearingNotice-(HearingDate-30-01-2024).pdf	2024-01-04
19	202031011730-Correspondence to notify the Controller [27-01-2024(online)].pdf	2024-01-27
20	202031011730-Correspondence to notify the Controller [29-03-2024(online)].pdf	2024-03-29

Search Strategy

1	WTE_29-07-2022.pdf