Kyle Form 5, Form 5 UDP, Form 5 DC NOVA Recloser Control Installation and Operation Instructions

RS-232 Communication Port

The standard Form 5 control is equipped with a operator panel RS-232 port for interface with a personal computer running the Form 5 interface software program. This ninepin female data communication equipment (DCE) Port 1 permits the uploading of all programming information stored in the control, including protection profiles, event recorder, data profiles, alarms, counters, and metering information. Port 1 provides a simple means to download operating parameters from a personal computer to the control.The protocol, baud rate and address for Port 1 are identified from the LCD display.

If a fiber-optic or RS-232 accessory board is connected to Port 2 (located on the back of the operator panel) any external electrical connection from the operator panel will disable the accessory board.

Note: The operator panel RS-232 port is intended only for temporary connection of a personal computer. Permanent serial communications must be made via the RS- 232 or fiber-optic accessory board.

Battery Test Procedure

The condition of the control battery is tested by depressing the BATTERY TEST hot key on the operator panel. No external current/voltage meter is necessary for testing.

The control performs a self-test every 12 hours or when initiated by an external command. When a battery test is initiated, the spurious charge is first drained to allow the battery voltage to equalize. A 10-ohm, 55-watt resistor is then placed across the battery terminals and a voltage drop is calculated. If the drop from the equalized voltage to the test voltage exceeds 2 volts, then the CHECK BATTERY LED is illuminated.

To perform a battery test:

1.Using the Next and BACK keys, scroll through the LCD display to Screen 31, the Battery Monitor screen.

2.Record the NORMAL VOLTS and NORMAL CUR- RENT readings from the screen.

Note: Voltage should be between 25 to 31 volts with higher readings at colder temperatures. Under nor- mal conditions with ac connected and the battery trickle charging, the current should read less than 20 mA. With ac connected and in bulk charging mode, current will range from 12 to 600 mA. With ac disconnected and the battery supplying the load, current will read -180 mA to -600mA depending on accessories connected.

3.Momentarily, press the CHANGE/LAMP TEST key, then BATTERY TEST key.

Note: AC power can be either connected or disconnected for Step 3.

4.Record the TEST VOLTS reading from the LCD and the status of the CHECK BATTERY LED. Service the battery if the CHECK BATTERY LED is illuminated.

Control Features

The Form 5 recloser control offers numerous standard features and accessories that allow the user the utmost flexibility in designing a control suitable for their application requirements.

Under/Over Frequency Loadshedding

The Form 5 control includes provisions for frequency loadshedding that trips the recloser for conditions of under or over system frequency. Access to this feature is through frequency threshold, trip time, and allowable voltage threshold.

With the auto-restoration feature, the Form 5 can be set to close the recloser after the system frequency and voltage have recovered. Parameters available for setting include frequency and voltage thresholds and time delay.

A frequency alarm is available and can be configured for notification.

Voltage Protection (120 Vac-based)

Voltage protection functionality is included as standard on all Form 5 controls. A recloser trip will be issued for under and over voltage conditions when the monitored voltage falls outside user-specified limits for a selectable time. Response mode includes any single-phase, all three phases, and single-phase with three-phase inhibit. Response mode facilitates protecting against a single phase condition common when a high side fuse operates on a distribution transformer. Parameters are also available to provide auto restoration after a trip. A voltage alarm is available and can be configured for notification.

Protection Profiles

Four separate protection profiles are included to allow the user to adapt overcurrent settings for varying system conditions such as load, live line work or weather. The active profile is selected from the operator panel or with the interface software or SCADA (Figure 9). Each profile has 14 TCC specifications plus reclose intervals, sequence coordination and reset times to maintain independent protection parameters.

Figure 9.

Interface software sample protection profile.

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