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Capstone Turbine Corporation • 21211 Nordhoff Street • Chatsworth • CA 91311 • USA Application Guide: Capstone Protective Relay Output Contacts The two programmable output relays, each with a contact are rated as per ANSI/IEEE C37.90- 1989 for tripping: make 30 A for 0.2 seconds. Available hardware configurations include two normally open (Option B1), one normally open and one normally closed (Option B2), or two normally closed (Option B3) contacts. The contacts will carry 8 A, break 6 A at 120 Vac, break 0.1 A at 125 Vdc, inductive break 0.1 A. Also provided is a self-test alarm output contact (form ‘c’) with a rating of 8 A at 120 Vac, 5 A at 30 Vdc, 125 Vdc 0.15 A resistive, 0.1 A inductive. Any of the protective functions can be individually programmed to activate the two programmable outputs. The user can configure the two programmable outputs to either energize or de-energize to issue an output command. The outputs (excluding the self-test) can have two modes of operation, LATCHING and NORMAL. The LATCHING mode requires an operator intervention to deactivate the outputs after the condition for operation has been removed. In the NORMAL mode, when the condition for tripping has been removed, the output(s) will deactivate automatically after the corresponding seal-in timers have expired. When an event occurs, the Output Contacts (1 or 2) are used to shutdown the generating facility through a utility approved interposing relay (See Figure 4). The generating facility will come back on line once all events have been cleared and the Outputs Contacts have reset. The below example is for a 120Vac powered Capstone Protective Relay. Each Output Contact is protected by a 5A fuse. This ensures the protective relay contacts cannot be damaged due to an external short circuit. Capstone Protective Relay TB1-2 TB1-4 TB1-1 TB1-3 Neutral Line Power Input (120Vac) Output 2 (depends on configuration) TB1-18 TB1-19 Interposing Relay RL1 RL1-1 Fault Input 2 Microturbine Figure 4 - Output Contacts and Interposing Relay 480015 Rev B (May 2006) Page 5 of 12 This information is proprietary to Capstone Turbine Corporation. Neither this document nor the information contained herein shall be copied, disclosed to others, or used for any purposes other than the specific purpose for which this document was delivered. Capstone reserves the right to change or modify without notice, the design, the product specifications, and/or the contents of this document without incurring any obligation either with respect to equipment previously sold or in the process of construction.PDF Image | Application Guide Capstone Protective Relay
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